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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6121. Отображено 100.
09-02-2012 дата публикации

Reduction-resistant dielectric composition and ceramic electronic component including the same

Номер: US20120033343A1
Автор: Ji Young Park, Kang Heon Hur, Sang Hoon Kwon, Seok Hyun Yoon, Sung Hyung Kang
Принадлежит: Samsung Electro Mechanics Co Ltd

There are provided a reduction-resistant dielectric composition and a ceramic electronic component including the same. The reduction-resistant dielectric composition may include a BaTiO 3 -based matrix powder, 0.1 to 1.0 moles of a transition metal oxide or transition metal carbonates, based on 100 moles of the matrix powder, and 0.1 to 3.0 moles of a sintering aid including silicon oxide (SiO 2 ). The ceramic electronic component including the reduction-resistant dielectric composition may have a high capacitance and superior reliability.

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Номер записи: 1
23-02-2012 дата публикации

Metal-Ceramic Substrate

Номер: US20120045657A1
Автор: Jürgen SCHULZ-HARDER, Lars Müller
Принадлежит: CURAMIK ELECTRONICS GMBH

A metal/ceramic substrate made up of a multilayer, plate-shaped ceramic material and at least one metallization provided on a surface side of the ceramic material. The at least one metallization is bonded to the ceramic material by direct copper bonding or reactive brazing and the ceramic material is made of a base layer made of silicon nitride ceramic. The at least one metallization is formed from at least one intermediate layer of an oxidic ceramic applied to the at least one base layer.

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Номер записи: 2
10-05-2012 дата публикации

Ceramic/metal composite structure and method of manufacturing the same

Номер: US20120114966A1
Автор: Shao-Kuan Lee, Wei-Hsing Tuan
Принадлежит: National Taiwan University NTU

A ceramic/metal composite structure includes an aluminum oxide substrate, an interface bonding layer and a copper sheet. The interface bonding layer is disposed on the aluminum oxide substrate. The copper sheet is disposed on the interface bonding layer. The interface bonding layer bonds the aluminum oxide substrate to the copper sheet. Some pores are formed near or in the interface bonding layer. A porosity of the interface bonding layer is substantially smaller than or equal to 25%. A method of manufacturing the ceramic/metal composite structure is also provided.

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Номер записи: 3
05-07-2012 дата публикации

Flexible ceramic matrix composite structures and methods of forming the same

Номер: US20120171430A1
Автор: James A. Riedell
Принадлежит: COI Ceramics Inc

Methods of forming ceramic matrix composite structures include joining at least two lamina together to form a flexible ceramic matrix composite structure. Ceramic matrix composite structures include at least one region of reduced inter-laminar bonding at a selected location between lamina thereof. Thermal protection systems include at least one seal comprising a ceramic matrix composite material and have at least one region of reduced inter-laminar bonding at a selected location between lamina used to form the seal. Methods of forming thermal protection systems include providing one or more such seals between adjacent panels of a thermal protection system.

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Номер записи: 4
30-08-2012 дата публикации

Method for producing perovskite type composite oxide

Номер: US20120216941A1
Автор: Norikazu Tachibana, Toshiharu Nakagawa, Yasunari Nakamura
Принадлежит: Murata Manufacturing Co Ltd

A method is provided which includes a reaction step of reacting at least titanium oxide, a calcium compound, and barium hydroxide in a slurry solution so as to produce a perovskite-type composite oxide. The perovskite-type composite oxide is represented by (Ba 1-x Ca x ) m TiO 3 , and x is within a range of 0<x≦0.125. In addition, the method provides a perovskite-type composite oxide in which a water-soluble calcium compound is used as the calcium compound, and when the perovskite-type composite oxide is represented by (Ba 1-x Ca x ) m TiO 3 , x is within a range of 0<x≦0.20.

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Номер записи: 5
30-08-2012 дата публикации

Method and device for producing a component of a turbomachine

Номер: US20120217226A1
Автор: Erwin Bayer, Sven-J. Hiller
Принадлежит: MTU AERO ENGINES GMBH

The invention relates to a method for producing a component ( 10 ) of a turbomachine, especially a structural part of a turbine or a compressor, the method being a generative production method for the layer-by-layer buildup of the component ( 10 ). After production of one or more successive component layers pressure is applied to at least sections of the surface of the most recently produced component layer ( 12 ), the pressure being induced by laser or plasma. The invention further relates to a device for producing a component ( 10 ) of a turbomachine, especially a structural part of a turbine or a compressor, the device ( 26 ) comprising at least one powder feed ( 28 ) for the deposition of at least one powder component material ( 16 ) onto a component platform, at least one radiation source ( 14 ) for a local layer-by-layer fusion or sintering of the component material ( 16 ) and at least one laser radiation source ( 20 ) or at least one plasma impulse source.

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Номер записи: 6
13-09-2012 дата публикации

Ceramic material, laminate, member for use in semiconductor manufacturing equipment, and sputtering target member

Номер: US20120231243A1
Автор: Asumi Jindo, Morimichi Watanabe, Yoshinori Isoda, Yosuke Sato, Yuji Katsuda
Принадлежит: NGK Insulators Ltd

A ceramic material mainly contains magnesium, aluminum, oxygen, and nitrogen, in which the ceramic material has a magnesium-aluminum oxynitride phase serving as a main phase, wherein XRD peaks of the magnesium-aluminum oxynitride phase measured with CuKα radiation appear at at least 2θ=47 to 50°.

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Номер записи: 7
04-10-2012 дата публикации

Method for producing electrostatic chuck and electrostatic chuck

Номер: US20120250212A1
Автор: Hirokazu Nakanishi, Takahiro Takahashi, Takuji Kimura
Принадлежит: NGK Insulators Ltd

A method for producing an electrostatic chuck 10 includes the steps of (a) pouring a ceramic slurry containing a ceramic powder, a solvent, a dispersant, and a gelling agent into a first molding die 31 in which an electrostatic electrode precursor 24 is removably attached to an inner surface of the first molding die 31 , gelatinizing the ceramic slurry by causing a chemical reaction of the gelling agent, and then removing the first molding die 31 to prepare an embedded-electrode-containing ceramic molded body 41 X in which the electrostatic electrode precursor 24 is embedded in a first ceramic molded body 41 ; (b) preparing a second ceramic molded body 42 ; and (c) preparing a stacked calcined body 50 using the embedded-electrode-containing ceramic molded body 41 X and the second ceramic molded body 42 , and conducting hot-press firing of the stacked calcined body 50.

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Номер записи: 8
18-10-2012 дата публикации

Polycrystalline diamond compacts including at least one transition layer and methods for stress management in polycrsystalline diamond compacts

Номер: US20120261197A1
Автор: Arnold D. Cooper, Damon B. Crockett, David P. Miess, Kenneth E. Bertagnolli
Принадлежит: US Synthetic Corp

Embodiments relate to polycrystalline diamond compacts (“PDCs”) that are less susceptible to liquid metal embrittlement damage due to the use of at least one transition layer between a polycrystalline diamond (“PCD”) layer and a substrate. In an embodiment, a PDC includes a PCD layer, a cemented carbide substrate, and at least one transition layer bonded to the substrate and the PCD layer. The at least one transition layer is formulated with a coefficient of thermal expansion (“CTE”) that is less than a CTE of the substrate and greater than a CTE of the PCD layer. At least a portion of the PCD layer includes diamond grains defining interstitial regions and a metal-solvent catalyst occupying at least a portion of the interstitial regions. The diamond grains and the catalyst collectively exhibit a coercivity of about 115 Oersteds or more and a specific magnetic saturation of about 15 Gauss·cm 3 /grams or less.

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Номер записи: 9
25-10-2012 дата публикации

Multi-layer ceramic composite porous structure

Номер: US20120266603A1
Автор: David John Thomas, Jay Lane, Richard Christopher Uskert, Ted Joseph Freeman
Принадлежит: Rolls Royce North American Technologies Inc

An article of manufacture includes a first ceramic matrix composite (CMC) sheet having a number of flow passages therethrough, and an open-cell foam layer bonded to the first CMC sheet. The open-cell foam layer is an open-cell foam. The article of manufacture includes a second CMC sheet bonded to the open-cell foam layer, the second CMC sheet having a thermal and environmental barrier coating and having a number of flow passages therethrough.

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Номер записи: 10
22-11-2012 дата публикации

Multilayered ceramic electronic component

Номер: US20120295122A1
Автор: Byong Gyun Kim, Byung Jun JEON, Da Young Choi, Eun Sang Na, Gun Jung Yoon, Hyun Hee Gu, Ji Sook Kim, Kyu Ha Lee, Myung Jun Park
Принадлежит: Samsung Electro Mechanics Co Ltd

There is provided a multilayered ceramic electronic component having a reduced thickness and exhibiting hermetic sealing. In multilayered ceramic electronic component, an external electrode includes two layers, that is, first and second layers, and the first and second layers contain glass with different compositions, respectively. Therefore, the multilayered ceramic electronic component having high reliability, such as strong adhesion between the external electrode and the internal electrode, prevention of glass exudation, or the like, may be obtained.

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Номер записи: 11
06-12-2012 дата публикации

Piezoelectric/electrostrictive element

Номер: US20120306324A1
Автор: Tomohiko Hibino
Принадлежит: NGK Insulators Ltd

There is provided a piezoelectric/electrostrictive element 1 comprising a piezoelectric/electrostrictive body 30 made of a piezoelectric/electrostrictive ceramic composition containing Pb(Ni 1/3 Nb 2/3 )O 3 —PbTiO 3 —PbZrO 3 ternary solid solution system composition as the main components, and an electrode disposed on the piezoelectric/electrostrictive body, wherein the ternary solid solution system composition is represented by the following composition formula: (Pb 1-x Sr x ) α {(Ti 1-y Zr y ) a (Ni β/3 Nb 2/3 ) b (Al γ/2 Nb 1/2 ) c }O 3 (where 0.005≦x≦0.03, 0.45≦y≦0.54, 0.58≦a≦0.91, 0.07≦b≦0.36, 0.02≦c≦0.08, 0.97≦α≦1.03, 0.97≦β≦1.03, 0.97≦γ≦1.03, and (a+b+c=1.000)).

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Номер записи: 12
07-03-2013 дата публикации

Method for manufacturing multilayer ceramic electronic component

Номер: US20130056133A1
Автор: Koji Sato, Yasuhiro Nishisaka, Yukio Sanada
Принадлежит: Murata Manufacturing Co Ltd

A method for manufacturing a multilayer ceramic electronic component significantly reduces and prevents swelling or distortion when a conductive paste is applied to a green ceramic element body. A ceramic green sheet used in the method satisfies 180.56≦A/B wherein A is a polymerization degree of an organic binder contained in the ceramic green sheet, and B is a volume content of a plasticizer contained in the ceramic green sheet.

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Номер записи: 13
21-03-2013 дата публикации

Corrugated carbon fiber preform

Номер: US20130071628A1
Автор: Mark L. La Forest, Slawomir Fryska
Принадлежит: Honeywell International Inc

In one example, a method includes mixing a plurality of carbon fibers in a liquid carrier to form a mixture, depositing the carbon fiber mixture in a layer, forming a plurality of corrugations in the carbon fiber layer, and rigidifying the corrugated carbon fiber layer to form a corrugated carbon fiber preform. In another example, a method includes substantially aligning a first ridge on a first surface of a first corrugated carbon fiber preform and a first groove on a first surface of a second corrugated carbon fiber preform, bringing the first surface of the first corrugated carbon fiber preform into contact with the first surface of the second corrugated carbon fiber preform, and densifying the first corrugated carbon fiber preform and the second carbon fiber preform to bond the first corrugated carbon fiber preform and the second carbon fiber preform.

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Номер записи: 14
18-04-2013 дата публикации

LIQUID CHEMICAL DEPOSTION APPARATUS AND PROCESS AND PRODUCTS THEREFROM

Номер: US20130095306A1
Автор: de Rochemont L. Pierre
Принадлежит:

A method, apparatus and material produced thereby in an amorphous or crystalline form having multiple elements with a uniform molecular distribution of elements at the molecular level. 1. A crystalline material of macroscopic dimension comprising a uniform microstructure that consists of a dense network of grains wherein the grains have an atomic scale chemical uniformity and uniform physical dimensions in the range of 1 nm to 100 nm.2. The material of claim 1 , wherein the material is a metal claim 1 , superalloy claim 1 , semiconductor or a ceramic.3. The material of having sufficient thickness to exist as a self-standing body.4. The material of as a laminate on a supporting substrate material.5. A composite body comprising a substrate that has a mismatched material deposited on one or more surfaces.6. A composite body of claim 5 , wherein the deposited mismatched material has a crystalline structure that is different from the substrate.7. A composite body of claim 5 , wherein substrate and the mismatched material have a coefficient of expansion that differs by 10% or more.8. A composite body of claim 5 , wherein the substrate and the mismatched material have crystalline lattice constants that differ by 5% or more.9. A composite body of claim 5 , wherein an amorphous boundary layer serves as a mechanical interface between the mismatched materials.10. A composite body of claim 5 , wherein the uniform gain size of the deposited mismatched material has a grain size ranging from 1 nm to 500 micron.11. A composite body of claim 5 , wherein the mismatched material is a metal claim 5 , superalloy claim 5 , semiconductor claim 5 , ceramic claim 5 , or an electroceramic.12. The composite body of claim 5 , wherein the amorphous mismatched material is deposited on the substrate prior to annealing which nucleates less than all of the deposited mismatched material to form an amorphous boundary layer between the substrate and the nucleated mismatched material. This application ...

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Номер записи: 15
25-04-2013 дата публикации

Thermal resistor material

Номер: US20130101789A1
Автор: Neil D. Lubart, Timothy J. Wojciechowski
Принадлежит: THIN THERMAL BARRIERS Ltd

An insulating material having structures and a design that maximizes vacuum area relative to material volume and minimizes the area of contact to a region to be insulated in order to provide maximum thermal resistance between the contacted area and an external environment is provided.

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Номер записи: 16
09-05-2013 дата публикации

METHOD FOR PRODUCING LAMINATED ELECTRONIC COMPONENT, AND LAMINATED ELECTRONIC COMPONENT

Номер: US20130115411A1
Автор: Abe Isao, Kimura Kazunari, NAKAMURA Akira, Saito Noriyuki, Tabata Misaki, Tomaki Shigemitsu
Принадлежит: TDK Corporation

A method of manufacturing a laminated electronic part includes fabricating first and second laminated sheets by laminating an insulating function layer made of an unsintered ceramic material and a conductor layer, having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction to make up part of circuit components; cutting the first and second laminated sheets into sticks to create a plurality of first and second laminate sticks; fabricating a third laminated sheet by rotating the second laminate sticks by 90°, arranging the second laminate sticks to be each sandwiched between the first laminate sticks, and thermocompression bonding them for integration; singulating the third laminated sheet into chips and creating sintered bodies by sintering the unsintered chips to integrate the first laminate with the second laminate. 1. A method of manufacturing a laminated electronic part , comprising:fabricating a first laminated sheet by laminating one or more insulating function layers mainly made of an unsintered ceramic material and one or more conductor layers, each having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction, said conductors making up at least part of circuit components;fabricating a second laminated sheet by laminating one or more insulating function layers mainly made of an unsintered ceramic material and one or more conductor layers, each having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction, said conductors making up at least part of circuit components;cutting said first laminated sheet into sticks such that said sticks include a plurality of conductors arranged either in the vertical direction or in the horizontal direction, thereby creating a plurality of first laminate sticks;cutting said second laminated sheet into sticks such that said sticks include a plurality of conductors arranged ...

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Номер записи: 17
16-05-2013 дата публикации

THERMOPLASTIC POLYMER COMPOSITION AND MOLDED ARTICLE

Номер: US20130122289A1
Автор: Masuda Mikio, MINAMIDE Asako
Принадлежит: KURARAY CO., LTD.

A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability, capable of adhering to ceramics, metals, and synthetic resins without a treatment with a primer, and exhibits a high adhesion strength even when exposed to a high temperature environment, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), and 0.1 to 300 parts by mass a softener (C). The thermoplastic elastomer (A) is a block copolymer including a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer. The polyvinyl acetal resin (B) has a glass transition temperature of 80 to 130° C. 1: A thermoplastic polymer composition , comprising:100 parts by mass of a thermoplastic elastomer;from 1 to 100 parts by mass of a polyvinyl acetal resin having a glass transition temperature of from 80 to 130° C.; andfrom 0.1 to 300 parts by mass of a softener;wherein the thermoplastic elastomer (A) is a block copolymer comprising a polymer block comprising aromatic vinyl compound units and a polymer block comprising conjugated diene units or the thermoplastic elastomer is a hydrogenated product of the block copolymer.2: The thermoplastic polymer composition of claim 1 , further comprising from 0.1 to 20 parts by mass of a compatibilizer.3: The thermoplastic polymer composition of claim 2 , comprising;100 parts by mass of the thermoplastic elastomer;from 10 to 70 parts by mass of the polyvinyl acetal resin;from 1 to 200 parts by mass of the softener; andfrom 0.1 to 17 parts by mass of the compatibilizer.4: The thermoplastic polymer composition of claim 1 , wherein the polyvinyl acetal resin is obtained by a process comprising acetalizing a polyvinyl alcohol with an aldehyde having from 1 ...

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Номер записи: 18
06-06-2013 дата публикации

HIGH PERFORMANCE ANTI-SPALL LAMINATE ARTICLE

Номер: US20130139886A1
Автор: ANDERSON JERREL C., BENNISON STEPHEN J., Hayes Richard Allen, KIRSCHNER CYNTHIA H., KRISTUNAS DAVID F.
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

Provided is a high performance anti-spall laminate article comprising a bi-layer polymeric composite. The bi-layer composite includes a polymeric sheet and a poly(ethylene terephthalate) (PET) film laminated to each other. The PET film has a tensile modulus of about 600,000 psi or higher in both the machine direction (MD) and the transverse direction (TD), a shock brittleness index of about 55 Joules or higher in the machine direction and about 25 joules or higher in the transverse direction, and a percent elongation at break (EOB) of about 110-160 in the machine direction and about 60-110 in the transverse direction. 1. A laminate article comprising a bi-layer composite and , optionally , one or more additional laminate layers , whereina) the bi-layer composite consists essentially of a polymeric sheet and a poly(ethylene terephthalate) film laminated to each other; andb) the poly(ethylene terephthalate) film has (i) a tensile modulus of about 600,000 psi or higher in both the machine direction and the transverse direction, (ii) a shock brittleness index of about 55 Joules or higher in the machine direction and about 25 joules or higher in the transverse direction, and (iii) a percent elongation at break (EOB) of about 110 to about 170 in the machine direction and about 60 to about 110 in the transverse direction.2. The laminate article of claim 1 , wherein the poly(ethylene terephthalate) film is a bi-axially oriented poly(ethylene terephthalate) film.3. The laminate article of claim 1 , wherein the poly(ethylene terephthalate) film is a bi-axially oriented poly(ethylene terephthalate) film with a thickness of about 4 to about 7 mil (about 0.1 to about 0.18 mm).4. The laminate article of claim 1 , wherein the poly(ethylene terephthalate) film is further coated with an abrasion resistant hardcoat on the surface that is opposite from the polymeric sheet.5. The laminate article of claim 4 , wherein the abrasion resistant hardcoat comprises or is made from ...

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Номер записи: 19
04-07-2013 дата публикации

PROCESS OF PRODUCING CERAMIC MATRIX COMPOSITES AND CERAMIC MATRIX COMPOSITES FORMED THEREBY

Номер: US20130167374A1
Автор: Goss Nathaniel David, Kirby Glen Harold, STEIBEL James Dale
Принадлежит: GENERAL ELECTRIC COMPANY

A process for producing a silicon-containing CMC article. The process entails depositing one or more coating layers on silicon carbide (SiC) fibers, drawing the coated SiC fibers through a slurry to produce slurry-coated fiber material, and then processing the slurry-coated SiC fiber material to form unidirectional prepreg tapes. The tapes are stacked and then fired to yield a porous preform. The porous preform is then further densified by infiltrating the porosity therein to yield a CMC article. Infiltration can be achieved by a series of polymer infiltration and pyrolysis (PIP) steps, by melt infiltration (MI) after filling the porosity in the preform with carbon or one or more refractory metal, by chemical vapor infiltration (CVI), or by a combination of these infiltration techniques. 1. A process for producing a silicon-containing CMC article , the process comprising:depositing one or more coating layers on silicon carbide fibers;drawing the coated silicon carbide fibers through a slurry to produce slurry-coated fiber material;producing unidirectional prepreg tapes from the slurry-coated fiber material;stacking the tapes to form a preform;firing the preform to yield a porous fired preform; and thendensifying the porous fired preform by infiltrating porosity therein to yield a CMC article.2. The process of claim 1 , wherein the composition of the slurry comprises an approximately 1:1 stoichiometric mixture of elemental silicon and carbon black that react during firing of the preform at temperatures of about 1430° C. to about 1460° C.3. The process of claim 1 , wherein the composition of the slurry comprises one or more organic binders that are pyrolyzed during the firing step to form a network of carbon char.4. The process of claim 1 , wherein the composition of the slurry comprises one or more refractory materials.5. The process of claim 4 , wherein the composition of the refractory materials is chosen from the group consisting of molybdenum claim 4 , molybdenum ...

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Номер записи: 20
18-07-2013 дата публикации

Multi-Layer Plate Device

Номер: US20130180976A1
Автор: Balma Frank, Elliot Alfred Grant, Elliot Brent Donald Alfred, Rex Dennis George, Schuster Richard Erich, Veytser Alexander
Принадлежит: Component Re-Engineering Company, Inc.

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck. 1. A multi-layer plate for use in semiconductor processing , said multi-layer plate comprising:a upper plate layer, said upper plate layer comprising disc;a lower plate layer; anda joining layer disposed between said upper plate layer and said lower plate layer, wherein said joining layer joins said upper plate layer to said lower plate layer.2. The multi-layer plate of wherein said upper plate layer comprises ceramic3. The multi-layer plate of wherein said upper plate layer comprises aluminum nitride.4. The multi-layer plate of wherein said lower plate layer comprises ceramic.5. The multi-layer plate of wherein said lower plate layer comprises aluminum nitride.6. The multi-layer plate of wherein said joining layer comprises aluminum.7. The multi-layer plate of wherein said joining layer comprises aluminum.8. The multi-layer plate of wherein said joining layer comprises aluminum.9. The multi-layer plate of wherein said joining layer comprises aluminum.10. The multi-layer plate of further comprising a heater residing between said upper plate layer and said lower plate layer claim 6 , wherein said joining layer comprises a ring around the outer periphery of said heater.11. The multi-layer plate of further comprising a heater residing between said upper plate layer and said lower ...

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Номер записи: 21
18-07-2013 дата публикации

Method For Hermetically Joining Plate And Shaft Devices Including Ceramic Materials Used In Semiconductor Processing

Номер: US20130181038A1
Автор: Alexander Veytser, Alfred Grant Elliot, Brent Donald Alfred Elliot, Dennis George Rex, Frank Balma, Richard Erich Schuster
Принадлежит: Component Re Engineering Co Inc

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck.

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Номер записи: 22
18-07-2013 дата публикации

CERAMIC MEMBER

Номер: US20130183503A1
Автор: Ando Kazuto, Hayashi Shintaro, ISHIZUKA Masayuki
Принадлежит: Sumitomo Osaka Cement Co., Ltd.

Provided is a ceramic member in which the difference in thermal expansion coefficient between an insulating ceramic material and an electrically conductive ceramic material is extremely small and therefore any mismatch caused in association with this difference in thermal expansion coefficient does not occur, and which does not undergo any failure such as breakage, cracking, detachment or destruction. The ceramic member () includes an electrically conductive ceramic material () which contains yttrium oxide as the main component and additionally contains a fibrous electrically conductive substance such as carbon nanotubes in an amount of 0.1 to 3 vol % inclusive and an insulation ceramic material () which contains yttrium oxide as the main component, wherein the electrically conductive ceramic material () and the insulation ceramic material () are adhered to each other in an integrated manner through an adhesive layer () which includes an inorganic adhesive material. 1. A ceramic member comprising a conductive ceramic including yttrium oxide as a main component and containing 0.1 volume % to 3 volume % of a fibrous conductive substance and an insulating ceramic including yttrium oxide as a main component are adhered or joined.2. The ceramic member according to claim 1 ,wherein the fibrous conductive substance is a nanofiber having an aspect ratio of 10 or more.3. The ceramic member according to claim 2 ,wherein the nanofiber is a carbon nanotube.4. The ceramic member according to claim 1 ,wherein the conductive ceramic and the insulating ceramic are adhered through an adhesive layer made of an inorganic adhesive material.5. The ceramic member according to claim 4 ,wherein thermal expansion coefficients of the conductive ceramic and the insulating ceramic and a thermal expansion coefficient of the adhesive layer are substantially matched.6. The ceramic member according to claim 1 ,wherein the conductive ceramic and the insulating ceramic are joined through heating. ...

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Номер записи: 23
25-07-2013 дата публикации

Hermetically Joined Plate And Shaft Devices

Номер: US20130189022A1
Автор: Alexander Veytser, Alfred Grant Elliot, Brent Donald Alfred Elliot, Dennis George Rex, Frank Balma, Richard Erich Schuster
Принадлежит: Component Re Engineering Co Inc

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck.

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Номер записи: 24
22-08-2013 дата публикации

Composite heat-dissipation substrate and manufacturing method of the same

Номер: US20130213629A1
Автор: Jung-Yeul Yun, Sang-Bok Lee, Sang-Kwan Lee
Принадлежит: Korea Institute of Machinery and Materials KIMM

The present disclosure provides a composite heat-dissipation substrate and a method of manufacturing the same. The composite heat-dissipation substrate includes a first ceramic layer having insulating properties, a second porous ceramic layer and a metal layer, wherein the first ceramic layer and the second ceramic layer are continuously connected to each other so as not to form an interface therebetween, and the metal layer is infiltrated into plural pores of the second ceramic layer to be coupled to the ceramic layers, whereby interfacial coupling force between the ceramic layers and the metal layer is very high, thereby providing significantly improved heat dissipation characteristics.

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Номер записи: 25
29-08-2013 дата публикации

Non-Pre-Colored Multi-Layer Zirconia Dental Blank that has a Gradual Change in Translucency through a Thickness After Sintering

Номер: US20130221554A1
Автор: Daniel Yonil Jung, Yoonho Jun, Young Jin Kim, Yunoh Jung
Принадлежит: B & D DENTAL Corp

A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of yttria through a thickness of the green body. The green body is substantially opaque with a substantially consistent optical characteristic of non-translucency with respect to visible light across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of increasing translucency through a thickness of the dental prosthesis.

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Номер записи: 26
29-08-2013 дата публикации

CUT-OUT SINTERED CERAMIC SHEET AND METHOD OF MANUFACTURING THE SAME

Номер: US20130224499A1
Автор: Kanbe Sei, Nishi Ikuo
Принадлежит: MARUWA CO., LTD.

A method of manufacturing a cut-out sintered ceramic sheet including forming a ceramic green sheet, sintering the formed ceramic green sheet, adhering a plastic resin film onto which adhesive is applied on at least one surface of the sintered ceramic sheet, and shearing the sintered ceramic sheet. 1. A method of manufacturing a cut-out sintered ceramic sheet , comprising the steps of:providing a sintered ceramic sheet having a plastic film adhered to at least one surface thereof; andshearing the sintered ceramic sheet.2. The method of claim 1 , wherein the sintered ceramic sheet is sheared using dies.3. The method of claim 1 , wherein the plastic film extends to an end portion of a sheared edge of the sintered ceramic sheet.4. The method of claim 1 , wherein the sintered ceramic sheet is sheared between edges of upper and lower dies having a clearance between each edge from about 5-50 μm.5. The method of claim 4 , wherein the sintered ceramic sheet is sandwiched between the upper die and a second pressing module in a lower side of the upper die claim 4 , and sandwiched and fixed by the lower die juxtaposed on the second pressing module and a first pressing module opposite in an upper side of the lower die claim 4 , wherein the upper and lower dies are relatively displaced with a predetermined load.6. The method of claim 1 , wherein the sintered ceramic sheet is sheared to separate the sintered ceramic sheet into an inner area and an outer area surrounding the inner area.7. The method of claim 1 , wherein the sintered ceramic sheet is sheared to separate the sintered ceramic sheet into an inner area claim 1 , an annular area surrounding the inner area claim 1 , and an outer area surrounding the annular area.8. The method of claim 1 , wherein the sintered ceramic sheet is manufactured according to the method including the steps of:forming a ceramic green sheet;sintering the formed ceramic green sheet; andadhering the plastic film to at least one surface of the ...

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Номер записи: 27
05-09-2013 дата публикации

HEATING DEVICE

Номер: US20130228566A1
Автор: ISODA Yoshinori, JINDO Asumi, KATSUDA Yuji, KONDO Nobuyuki, SATO Yosuke, WATANABE Morimichi
Принадлежит: NGK Insulators, Ltd.

A heating apparatus A includes a susceptor having a heating face of heating a semiconductor. The susceptor includes a plate shaped main body and a surface corrosion resistant layer including the heating face. The surface corrosion resistant layer is made of a ceramic material comprising magnesium, aluminum, oxygen and nitrogen as main components. The ceramic material comprises a main phase comprising magnesium-aluminum oxynitride phase exhibiting an XRD peak at least in 2θ=47 to 50° by CuKα X-ray. 1. A heating apparatus comprising a susceptor , said susceptor comprising a heating face of heating a semiconductor:wherein said susceptor comprises a plate shaped main body and a surface corrosion resistant layer comprising an upper face providing said heating face;wherein said surface corrosion resistant layer comprises a ceramic material comprising magnesium, aluminum, oxygen and nitrogen as main components; andwherein said ceramic material comprises a main phase comprising magnesium-aluminum oxynitride phase exhibiting an XRD peak at least in 2θ=47 to 50° taken by using CuKα ray.2. The heating apparatus of claim 1 , said susceptor further comprising a back face covering layer covering a back face of said plate shaped main body claim 1 , said back face covering layer comprising a ceramic material comprising magnesium claim 1 , aluminum claim 1 , oxygen and nitrogen as main components claim 1 , wherein said ceramic material comprises a main phase comprising magnesium-aluminum oxynitride phase exhibiting an XRD peak at least in 2θ=47 to 50° taken by using CuKα ray.3. The heating apparatus of claim 1 , said susceptor further comprising a side face corrosion resistant layer covering a side face of said plate shaped main body claim 1 , said side face corrosion resistant layer comprising a ceramic material comprising magnesium claim 1 , aluminum claim 1 , oxygen and nitrogen as main components claim 1 , wherein said ceramic material comprises a main phase comprising magnesium ...

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Номер записи: 28
26-09-2013 дата публикации

Reactor Components

Номер: US20130251608A1
Автор: ChangMin Chun, Frank Hershkowitz, Paul F. Keusenkothen, Robert L. Antram
Принадлежит: ExxonMobil Chemical Patents Inc

The present disclosure relates to insulation components and their use, e.g., in regenerative reactors. Specifically, a process and apparatus for managing temperatures from oxidation and pyrolysis reactions in a reactor, e.g., a thermally regeneratating reactor, such as a regenerative, reverse-flow reactor is described in relation to the various reactor components.

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Номер записи: 29
26-09-2013 дата публикации

Method for Pore Sealing of Porous Materials Using Polyimide Langmuir-Blodgett Film

Номер: US20130251978A1
Автор: Alexey Ivanov, Mikhaïl Baklanov, Mikhail Krishtab, Svetlana Goloudina, Victor Luchinin, Vyacheslav Pasyuta
Принадлежит: Interuniversitair Microelektronica Centrum vzw IMEC, St Petersburg Electrotechnical Univ

Method for pore sealing a porous substrate, comprising: forming a continuous monolayer of a polyimide precursor on a liquid surface, transferring said polyimide precursor monolayer onto the porous substrate with the Langmuir-Blodgett technique, and imidization of the transferred polyimide precursor monolayers, thereby forming a polyimide sealing layer on the porous substrate. Porous substrate having at least one surface on which a sealing layer is provided to seal pores of the substrate, wherein the sealing layer is a polyimide having a thickness of a few monolayers and wherein there is no penetration of the polyimide into the pores.

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Номер записи: 30
10-10-2013 дата публикации

High durability joints between ceramic articles, and methods of making and using same

Номер: US20130266363A1
Автор: Christian Peter Deck, Christina Allyssa Back, Hesham Ezzat Khalifa
Принадлежит: General Atomics Corp

Embodiments of the present invention provide high durability joints between ceramic articles, particularly between beta-silicon carbide (β-SiC) articles, and methods of making and using the same. In one embodiment, a joint between first and second articles each comprising a ceramic polymorph comprises a matrix comprising the ceramic polymorph and extending between the first and second articles; a plurality of inclusions comprising the ceramic polymorph and being distributed throughout the matrix; and a sealing layer comprising the ceramic polymorph and being respectively disposed on the first and second articles and the matrix.

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Номер записи: 31
10-10-2013 дата публикации

METHOD FOR PRODUCING LAMINATED ELECTRONIC COMPONENT, AND LAMINATED ELECTRONIC COMPONENT

Номер: US20130266758A2
Автор: Abe Isao, Kimura Kazunari, NAKAMURA Akira, Saito Noriyuki, Tabata Misaki, Tomaki Shigemitsu
Принадлежит: TDK Corporation

A method of manufacturing a laminated electronic part includes fabricating first and second laminated sheets by laminating an insulating function layer made of an unsintered ceramic material and a conductor layer, having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction to make up part of circuit components; cutting the first and second laminated sheets into sticks to create a plurality of first and second laminate sticks; fabricating a third laminated sheet by rotating the second laminate sticks by 90°, arranging the second laminate sticks to be each sandwiched between the first laminate sticks, and thermocompression bonding them for integration; singulating the third laminated sheet into chips and creating sintered bodies by sintering the unsintered chips to integrate the first laminate with the second laminate. 1. A method of manufacturing a laminated electronic part , comprising:fabricating a first laminated sheet by laminating one or more insulating function layers mainly made of an unsintered ceramic material and one or more conductor layers, each having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction, said conductors making up at least part of circuit components;fabricating a second laminated sheet by laminating one or more insulating function layers mainly made of an unsintered ceramic material and one or more conductor layers, each having a plurality of conductors two-dimensionally arranged in a vertical direction and in a horizontal direction, said conductors making up at least part of circuit components;cutting said first laminated sheet into sticks such that said sticks include a plurality of conductors arranged either in the vertical direction or in the horizontal direction, thereby creating a plurality of first laminate sticks;cutting said second laminated sheet into sticks such that said sticks include a plurality of conductors arranged ...

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Номер записи: 32
17-10-2013 дата публикации

CERAMIC COATED ARTICLE AND PROCESS FOR APPLYING CERAMIC COATING

Номер: US20130273327A1
Автор: Agarwal Sumit, Duan Ren-Guan, Kanungo Biraja P., LUBOMIRSKY DMITRY, Sun Jennifer Y.
Принадлежит: Applied Materials, Inc.

To manufacture a ceramic article, a ceramic body comprising AlOis roughened to a roughness of approximately 140 micro-inches (μin) to 240 μin. The ceramic body is subsequently cleaned and then coated with a ceramic coating. The ceramic coating comprises a compound of YAlO(YAM) and a solid solution of Y-xZrO. The ceramic coating is then polished. 1. A method of manufacturing a ceramic article , comprising:{'sub': 2', '3, 'roughening a ceramic body comprising AlOto a roughness of approximately 140 micro-inches (μin) to approximately 240 μin;'}cleaning the ceramic body;coating the ceramic body with a ceramic coating, wherein the ceramic coating comprises a yttrium containing oxide; andmachining the ceramic coating, wherein the ceramic article comprises the ceramic body and the ceramic coating.2. The method of claim 1 , wherein the roughening is performed based on blasting the ceramic body with ceramic beads having a size range of 0.2-2 mm.3. The method of claim 1 , wherein the cleaning comprises:cleaning the ceramic body using a first ultrasonic cleaning process in a de-ionized (DI) water bath;subsequently cleaning the ceramic body using a second ultrasonic cleaning process in an acetone bath; andsubsequently cleaning the ceramic body using a third ultrasonic cleaning process in the DI water bath.4. The method of claim 1 , further comprising:performing an additional cleaning of the ceramic article after performing the polishing.5. The method of claim 1 , wherein machining the ceramic coating comprises polishing the ceramic coating claim 1 , and wherein the ceramic coating has an initial thickness of approximately 17.5-21.0 mil before performing the polishing and a final thickness of approximately 8-10 mil after performing the polishing.6. The method of claim 1 , wherein coating the ceramic body comprises:heating the ceramic body to a temperature of approximately 50° C. to 70° C.;plasma spraying the ceramic body using a plasma spray power of approximately 35 W to ...

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Номер записи: 33
31-10-2013 дата публикации

Method and apparatus for sintering flat ceramics

Номер: US20130288875A1
Автор: Amane Mochizuki, Bin Zhang, Guang Pan, Hiroaki Miyagawa, Hironaka Fujii, Toshitaka Nakamura
Принадлежит: Nitto Denko Corp

A method and apparatus for sintering flat ceramics using a mesh or lattice is described herein.

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Номер записи: 34
05-12-2013 дата публикации

Multilayered ceramic component

Номер: US20130321977A1
Автор: Eung Soo Kim, Jong Han Kim, Seung Ho Lee
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a multilayered ceramic component having a structure in which internal electrode layers and dielectric layers are alternately multilayered, wherein the internal electrode layer includes 0.01 to 12 wt % of common material based on weight of metal powders, and an average particle size of the common material is within 30% of an average particle size of the metal powders. According to the first exemplary embodiment of the present invention, the particle size and the added amount of common material squeezed out from the internal electrode layer at the time of firing at a high temperature are controlled, thereby making it possible to improve the connectivity of the internal electrode.

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Номер записи: 35
12-12-2013 дата публикации

Piezoelectric film, ink jet head, method of forming image by the ink jet head, angular velocity sensor, method of measuring angular velocity by the angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelectric generating element

Номер: US20130328974A1
Автор: Eiji Fujii, Hideaki Adachi, Takakiyo HARIGAI, Yoshiaki Tanaka
Принадлежит: Panasonic Corp

The present invention provides a non-lead piezoelectric film having high crystalline orientation, the low dielectric loss, the high polarization-disappear temperature, the high piezoelectric constant, and the high linearity between an applied electric field and an amount of displacement. The present invention is a piezoelectric film comprising: a Na x La 1-x+y Ni 1-y O 3-x layer having only an (001) orientation and a (1-α) (Bi, Na, Ba) TiO 3 -αBiQO 3 layer having only an (001) orientation. The (1-α) (Bi, Na, Ba) TiO 3 -αBiQO 3 layer is formed on the Na x La 1-x+y Ni 1-y O 3-x layer. The character of Q represents Fe, Co, Zn 0.5 Ti 0.5 , or Mg 0.5 Ti 0.5 The character of x represents a value of not less than 0.01 and not more than 0.05. The character of y represents a value of not less than 0.05 and not more than 0.20. The character of α represents a value of not less than 0.20 and not more than 0.50.

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Номер записи: 36
12-12-2013 дата публикации

CERAMIC MULTILAYER SUBSTRATE AND MANUFACTURING METHOD THEREFOR

Номер: US20130330509A1
Автор: OTSUBO Yoshihito
Принадлежит: MURATA MANUFACTURING CO., LTD.

A ceramic multilayer substrate includes a ceramic substrate including a plurality of ceramic layers and electrodes (surface electrodes and internal electrodes) disposed on or in the ceramic layers, which are stacked on each other. A recessed portion is defined on a principal surface of any of the ceramic layers by the electrode and the surrounding ceramic layer. The electrodes (surface electrodes and internal electrodes) are buried or embedded in the ceramic layers. A peripheral portion of the surface electrode is preferably covered with a covering ceramic layer so as to prevent short-circuiting between adjacent electrodes even if surface electrodes and internal electrodes are disposed at narrow intervals and at high density. 1. (canceled)2. A ceramic multilayer substrate comprising:a ceramic substrate defined by a stack including a plurality of ceramic layers and electrodes disposed on or in the ceramic layers; whereina recessed portion is defined on a principal surface of any of the ceramic layers by one of the electrodes and a surrounding one of the ceramic layers.3. The ceramic multilayer substrate according to claim 2 , wherein another one of the ceramic layers is stacked on the ceramic layer on which the recessed portion is defined so as to provide a gap between the one of the electrodes and the surrounding one of the ceramic layers.4. The ceramic multilayer substrate according to claim 2 , wherein the one of the electrodes is buried or embedded in the surrounding one of the ceramic layers.5. The ceramic multilayer substrate according to claim 2 , wherein the recessed portion is arranged on the principal surface of the ceramic layer that defines an outermost layer of the ceramic substrate claim 2 , the electrode that defines the recessed portion is a surface electrode claim 2 , and a peripheral portion of the surface electrode is covered with a covering ceramic layer.6. A manufacturing method of a ceramic multilayer substrate including a ceramic substrate ...

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Номер записи: 37
02-01-2014 дата публикации

Double-sided adhesive tape or sheet, and adherend processing method

Номер: US20140002953A1
Автор: Yukio Arimitsu
Принадлежит: Nitto Denko Corp

The present invention relates to a double-sided pressure-sensitive adhesive tape or sheet, containing a heat-releasable pressure-sensitive adhesive layer containing a heat-expandable microsphere on one side of a substrate, and a pressure-sensitive adhesive layer for temporary fixing on another side of the substrate, in which the pressure-sensitive adhesive layer for temporary fixing has a tensile pressure-sensitive adhesive strength of 2.0 to 20 N/20 mm in width and an amount of displacement of 0.3 mm/20 mm in width or less, and the pressure-sensitive adhesive layer for temporary fixing is crosslinked with an isocyanate or epoxy crosslinking agent.

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Номер записи: 38
16-01-2014 дата публикации

Polycrystalline Cubic Boron Nitride (PcBN) Body Made With Distinct Layers of PcBN

Номер: US20140017435A1
Автор: Lawrence Thomas Dues, Torbjorn Ingemar Selinder
Принадлежит: Diamond Innovations Inc

A polycrystalline cubic boron nitride (PcBN) is fabricated using a process of overlaying layers of cubic boron nitride (cBN) powder, where the layers have cBN mixed with various concentrations of a ceramic. The process of fabricating the PcBN includes depositing, in a refractory capsule, a carbide, a cubic boron nitride (cBN), and a mixture of cBN and a ceramic, then applying a high pressure and high temperature (HPHT) to the content of the refractory capsule. During the depositing step of the process, the concentration of cBN in the mixture of the cBN and ceramic is lower than the concentration of cBN that is in the layer below it. Upon applying HPHT, the carbide first diffuses across the cBN layer, and then diffuses across the layer with the mixture of the cBN and ceramic. After HPHT ends and the content of the refractory capsule cools, the process yields a PcBN having layers with various concentrations of cBN, and at least one cBN layer with a ceramic material.

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Номер записи: 39
27-02-2014 дата публикации

COMPOSITE LAMINATE CERAMIC ELECTRONIC COMPONENT

Номер: US20140057087A1
Автор: Adachi Hiroshige, Adachi Satoru, Kaneko Kazuhiro, Sakamoto Sadaaki
Принадлежит: MURATA MANUFACTURING CO., LTD.

A composite laminate ceramic electronic component that includes co-fired low dielectric constant ceramic layers and high dielectric constant ceramic layers. The low dielectric constant ceramic layers and high dielectric constant ceramic layers are each composed of a glass ceramic containing: a first ceramic composed of at least one of MgAlOand MgSiO; a second ceramic composed of BaO, REO(RE is a rare-earth element), and TiO; glass containing each of 44.0 to 69.0% by weight of RO (R is an alkaline-earth metal), 14.2 to 30.0% by weight of SiO, 10.0 to 20.0% by weight of BO, 0.5 to 4.0% by weight of AlO, 0.3 to 7.5% by weight of LiO, and 0.1 to 5.5% by weight of MgO; and MnO. The content ratios of the glass, etc. are varied between the low dielectric constant ceramic layers and the high dielectric constant ceramic layers. 1. A composite laminate ceramic electronic component comprising:a first ceramic layer; anda second ceramic layer adjacent the first ceramic layer, wherein the first ceramic layer has a lower dielectric constant than that of the second ceramic layer,wherein the first ceramic layer and the second ceramic layer each comprise a glass ceramic containing:{'sub': 2', '4', '2', '4, '(1) a first ceramic comprising at least one of MgAlOand MgSiO;'}{'sub': 2', '3', '2, '(2) a second ceramic comprising BaO, REO, and TiO;'}{'sub': 2', '2', '3', '2', '3', '2, '(3) glass containing each of 44.0 to 69.0% by weight of RO, 14.2 to 30.0% by weight of SiO, 10.0 to 20.0% by weight of BO, 0.5 to 4.0% by weight of AlO, 0.3 to 7.5% by weight of LiO, and 0.1 to 5.5% by weight of MgO; and'}(4) MnO,wherein RE is a rare-earth element, and R is at least one alkaline-earth metal selected from Ba, Ca, and Sr, contains 47.55 to 69.32% by weight of the first ceramic;', 'contains 6 to 20% by weight of the glass;', 'contains 7.5 to 18.5% by weight of the MnO; and', {'sub': 2', '3', '2, 'contains, as the second ceramic, each of 0.38 to 1.43% by weight of BaO, 1.33 to 9.5% by weight of ...

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Номер записи: 40
06-03-2014 дата публикации

BONDED COMPACT AND METHOD OF PRODUCING GREEN BONDED COMPACT

Номер: US20140065375A1
Автор: Ishibashi Satoshi, YOSHIOKA Kunihiko
Принадлежит: NGK Insulators, Ltd.

Provided is a method of producing “a ceramic green bonded compact in which a ceramic green film is bonded on each bonding surface of a ceramic green substrate having hole portions,” the method imparting good adhesiveness to a thin green film while suppressing the green substrate from having deformation. In this method, first, a layer of a paste for bonding is formed on each bonding surface of green sheets prepared. Next, each bonding surface of the green sheets on which the paste layer is formed is brought into contact, in a state in which the paste layer is wet, with each bonding surface of a porous ceramic green substrate prepared. While this state is maintained, pores in the green substrate absorb a dispersion medium in the paste layer in the wet state. As a result, the paste layer is dried, thereby completely bonding the green substrate and the green sheets. 1. A bonded compact which is a fired compact , comprising:a plate-like substrate having hole portions and being formed of an inorganic material; anda film, which is bonded on each bonding surface of the substrate, and has a thinner thickness than that of the substrate, the film being formed of an inorganic material having one of a different composition and a different microstructure from that of the substrate,wherein a ratio (T1/L1) of a thickness (T1) of a thinnest portion of the substrate to a maximum length (L1) in a cross-sectional shape of each of the hole portions in the substrate is 0.04 or more and 0.69 or less.2. A bonded compact according to claim 1 , wherein the film is formed of a dense inorganic material having a smaller porosity than that of the substrate.3. A bonded compact according to claim 1 , wherein:the bonding surface of the substrate has a part on which the film is formed and a part on which no film is formed; anda ratio (TB′/TB) of a thickness (TB′) of an edge portion of the film*, the edge portion corresponding to a boundary between the part on which the film is formed and the part on ...

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Номер записи: 41
20-03-2014 дата публикации

Spinel Ceramics Via Edge Bonding

Номер: US20140079909A1
Автор: Aggarwal Ishwar D., Bayya Shyam S., Miklos Robert E., Sanghera Jasbinder S., Villalobos Guillermo R.
Принадлежит: The Government of the United States of America, as represented by the Secretary of the Navy

A spinel ceramic made from the process comprising the steps of polishing one edge of a first spinel part to a surface roughness of less than 1 nm, polishing one edge of a second spinel part to a surface roughness of less than 1 nm, joining the polished edge of the first spinel part to the polished edge of the second spinel part, heating the first and second spinel parts to about 1000-1200° C., and maintaining said heating for about 3-6 hours resulting in bonded spinel parts. 1. A spinel ceramic made from the process comprising the steps of:polishing one edge of a first spinel part to a surface roughness of less than 1 nm;polishing one edge of a second spinel part to a surface roughness of less than 1 nm;joining the polished edge of the first spinel part to the polished edge of the second spinel part;heating the first and second spinel parts to about 1000-1200° C.; andmaintaining said heating for about 3-6 hours resulting in bonded spinel parts.2. The spinel ceramic of wherein the bonded spinel parts form a spinel ogive dome.3. The spinel ceramic of wherein the spinel ogive dome is a monolithic part with an almost invisible bondline.4. The spinel ceramic of wherein said spinel ceramic comprises a monolithic spinel ogive dome with a nearly invisible bondline wherein said spinel (MgAlO) is a rugged claim 1 , hard and strong ceramic material which transmits from the UV to the infrared in the range of from about 0.2 to about 5 μm.5. A spinel ceramic made from the process comprising the steps of:polishing a first edge of a first spinel transparent tile, having dimensions of about 3″×3″×½″ thick, wherein said polishing results in less than 1 nm surface roughness;polishing a first edge of a second spinel transparent tile, having dimensions of about 3″×3″×½″ thick, wherein said polishing results in less than 1 nm surface roughness;joining the polished edges;applying a load to the tiles;heating the tiles up to 1100° C. at 5° C./min and holding for 6 hours; andcooling slowly ...

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Номер записи: 42
20-03-2014 дата публикации

LAMINATED STRUCTURE, MEMBER FOR SEMICONDUCTOR MANUFACTURING APPARATUS, AND METHOD FOR PRODUCING LAMINATED STRUCTURE

Номер: US20140079946A1
Автор: Inoue Katsuhiro, JINDO Asumi, KATSUDA Yuji
Принадлежит: NGK Insulators, Ltd.

A laminated structure includes a first structure containing a main phase of magnesium-aluminum oxynitride, a second structure containing a main phase of aluminum nitride and grain boundary phases of a rare-earth aluminum composite oxide having a garnet-type crystal structure, and a reaction layer formed between the first structure and the second structure . The reaction layer is an aluminum nitride layer containing a smaller amount of grain boundary phases of the rare-earth aluminum composite oxide than the second structure . The reaction layer of the laminated structure has a thickness of 150 μm or less. The reaction layer is formed during the sintering by diffusing the grain boundary phases into the first structure 12. 1. A laminated structure , comprising:a first structure containing a main phase of magnesium-aluminum oxynitride;a second structure containing a main phase of aluminum nitride and grain boundary phases of a rare-earth aluminum composite oxide having a garnet-type crystal structure; anda reaction layer formed between the first structure and the second structure, the reaction layer being an aluminum nitride layer containing a smaller amount of grain boundary phases of the rare-earth aluminum composite oxide than the second structure,wherein the reaction layer has a thickness of 150 μm or less, and the difference in linear thermal expansion coefficient between the first structure and the second structure is 0.3 ppm/K or less.2. The laminated structure according to claim 1 , wherein the reaction layer has a thickness of 100 μm or less.3. The laminated structure according to claim 1 , wherein the second structure further contains a rare earth aluminum composite oxide having a perovskite-type crystal structure.4. The laminated structure according to claim 1 , wherein the first structure has a magnesium-aluminum oxynitride phase serving as a main phase claim 1 , wherein an XRD peak of the magnesium-aluminum oxynitride phase measured with CuKα radiation ...

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Номер записи: 43
10-04-2014 дата публикации

Ceramic matrix composite, method of making a ceramic matrix composite, and a pre-preg composite ply

Номер: US20140099484A1
Автор: Andres Jose Garcia-Crespo, Glenn Curtis Taxacher, Herbert Chidsey Roberts, Iii
Принадлежит: General Electric Co

A composite, method of making the composite and a pre-pre composite ply are provided. The composite includes a first layer, a second layer and a third layer. The first layer includes at least one ply of unidirectional tape. The second layer is adjacent the first layer and includes at least one composite ply. The at least one composite ply includes a thin continuous matrix ply sheet having a plurality of randomly oriented unidirectional tape segments thereon. The third layer is adjacent the second layer and includes at least one ply of unidirectional tape. The ceramic matrix composite provides about 15% to about 20% strength relative to a composite comprising all unidirectional plies and the ceramic matrix composite has a bending length of 3 cm to 25 cm based on a Shirley stiffness test.

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Номер записи: 44
01-01-2015 дата публикации

PROCESS KIT FOR EDGE CRITICAL DIMENSION UNIFORMITY CONTROL

Номер: US20150001180A1
Автор: Doan Kenny Linh, Kim Jong Mun, NOORBAKHSH HAMID, ROSA Jason Della
Принадлежит: Applied Materials, Inc.

A tunable ring assembly, a plasma processing chamber having a tunable ring assembly and method for tuning a plasma process is provided. In one embodiment, a tunable ring assembly includes an outer ceramic ring having an exposed top surface and a bottom surface and an inner silicon ring configured to mate with the outer ceramic ring to define an overlap region, the inner silicon ring having an inner surface, a top surface and a notch formed between the inner surface and the top surface, the inner surface defining an inner diameter of the ring assembly, the notch is sized to accept an edge of a substrate, an outer portion of the top surface of the inner silicon ring configured to contact in the overlap region and underlying an inner portion of the bottom surface of the outer ceramic ring.

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Номер записи: 45
06-01-2022 дата публикации

FLOOR PANEL COMPRISING A CERAMIC MATERIAL OR A NATURAL STONE

Номер: US20220003005A1
Автор: Baert Thomas Luc Martine, Boon Sven, Van Poyer Tom
Принадлежит:

The present disclosure relates to a floor panel, comprising a laminate of a core layer, comprising a ceramic or mineral material and a binder a first pair of opposite edges, said first pair of opposite edges comprising complementary coupling parts allowing to mutually couple of plurality of floor panels to each other, a top layer, comprising a ceramic material or a natural stone, wherein the side of the core layer facing the top layer comprises a reinforcement layer, locally having a higher density than the density of the rest of the core layer. 1. A floor panel adapted for assembling a floor or wall covering , the floor panel comprising:a core layer comprising a binder and a ceramic or mineral material selected from the group consisting of MgO, Mg(OH)2, MgSO4, MgCl2, CaCO3 or combination thereof;said ceramic or mineral content of the core layer being at least 50% causing said core layer to be resistive of expansion or contraction due to moisture or temperature fluctuations;at least one pair of opposite edges, said pair of opposite edges comprising complementary coupling parts allowing to mutually couple a plurality of floor panels to each other;a top layer, comprising a ceramic material, a tile, a porcelain ceramic, a natural stone, or a mosaic; andwherein a side of the core layer facing the top layer comprises an integrally formed reinforcement layer, locally having a higher density than a density of the rest of the core layer.2. The floor panel according to claim 1 , wherein said ceramic or mineral content of the core layer is at least 75% or at least 85%.3. The floor panel according to claim 1 , wherein the reinforcement layer has a density that is at least 5% claim 1 , 10% claim 1 , or 20% higher than the density of the rest of the core layer.4. The floor panel according to claim 1 , comprising a fibre mesh located near a surface of the reinforcement layer.5. The floor panel according to claim 1 , wherein the reinforcement layer is a crust layer.6. The floor ...

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Номер записи: 46
05-01-2017 дата публикации

CARBON FIBER PREFORMS

Номер: US20170001373A1
Автор: Fryska Slawomir T., La Forest Mark L.
Принадлежит:

In some examples, a method includes depositing a mixture including a resin and an additive powder via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers, wherein each individual layer of the plurality of individual carbon fiber layers includes a plurality of carbon fibers and the mixture of the resin and the additive powder. 1. A method comprising depositing a mixture including a resin and an additive powder via a print head of a three-dimensional printing system to form a carbon fiber preform including a plurality of individual carbon fiber layers , wherein each individual layer of the plurality of individual carbon fiber layers includes a plurality of carbon fibers and the mixture of the resin and the additive powder.2. The method of claim 1 , wherein the additive powder is configured to at least one of prevent oxidation claim 1 , modify a friction property claim 1 , increase a density claim 1 , or increase a strength of a densified carbon-carbon composite material formed from the carbon fiber preform.3. The method of claim 1 , wherein the additive powder comprises a ceramic powder.4. The method of claim 3 , wherein the ceramic powder is configured to at least one of prevent oxidation or increase a density of a densified carbon-carbon composite material formed from the carbon fiber preform.5. The method of claim 3 , wherein the ceramic powder comprises at least one of silicon carbide powder claim 3 , titanium carbide powder claim 3 , or tungsten carbide.6. The method of claim 1 , wherein the additive powder comprises a carbon powder.7. The method of claim 6 , wherein the carbon powder is configured to at least one of modify a friction property or increase strength of a densified carbon-carbon composite material formed from the carbon fiber preform.8. The method of claim 6 , wherein the carbon powder comprises at least one of activated carbon powder claim 6 , graphite powder ...

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Номер записи: 47
07-01-2016 дата публикации

CERAMIC JOINED BODY AND FLOW PASSAGE BODY

Номер: US20160001526A1
Автор: HIRANO Yoshinori, NAKAMURA Kiyotaka, SHINO Naoyuki
Принадлежит:

A ceramic joined body includes a first silicon-carbide based sintered body; and a second silicon-carbide based sintered body, the first silicon-carbide based sintered body and the second silicon-carbide based sintered body being joined together by a joining layer, the joining layer being coated by a first coating layer containing metallic silicon as a main component, the first coating layer being disposed over the first silicon-carbide based sintered body and the second silicon-carbide based sintered body. Further, a flow passage body includes the ceramic joined body provided with a passage. 1. A ceramic joined body , comprising:a first silicon-carbide based sintered body; anda second silicon-carbide based sintered body, the first silicon-carbide based sintered body and the second silicon-carbide based sintered body being joined together by a joining layer, the joining layer being coated by a first coating layer containing metallic silicon as a main component, the first coating layer being disposed over the first silicon-carbide based sintered body and the second silicon-carbide based sintered body.2. The ceramic joined body according to claim 1 , wherein a main component of the joining layer is silicon carbide.3. The ceramic joined body according to claim 2 , wherein the joining layer contains metallic silicon and at least one of copper and manganese.4. The ceramic joined body according to claim 2 , wherein a degree of dispersion of particles of the silicon carbide in the joining layer is 0.3 or higher and 0.9 or lower.5. The ceramic joined body according to claim 1 , wherein a second coating layer containing silicon carbide as a main component is provided on an inner side of the first coating layer.6. The ceramic joined body according to claim 1 , wherein no pore is present in the joining layer.7. A flow passage body claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the ceramic joined body according to , the ceramic joined body being provided ...

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Номер записи: 48
04-01-2018 дата публикации

CERAMIC MATRIX COMPOSITE ARTICLES HAVING DIFFERENT LOCALIZED PROPERTIES AND METHODS FOR FORMING SAME

Номер: US20180002238A1
Автор: Decesare Douglas, DUNN Daniel Gene, HOCKEMEYER Matthew, Khan K.M.K. Genghis, Shapiro Jason David, Sinha Shatil, Subramanian Suresh, VARTULI James Scott
Принадлежит: GENERAL ELECTRIC COMPANY

Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof. 1. A method for use in forming a ceramic matrix composite article , the method comprising:laying up a first plurality of plies comprising ceramic fibers defining a first extent;laying up at least one second ply defining a second extent on and/or in the layup of the first plurality of plies, the second extent being less than the first extent; andwherein the first plurality of plies comprises a first property, the at least one second ply comprises at least one second property, and the first property being different from the at least one second property.2. The method of wherein the laying up the at least one second ply comprises laying up the at least one second ply comprising ceramic fibers.3. The method of wherein the laying up the at least one second ply comprises laying up a plurality second plies claim 1 , and wherein the plurality of second plies comprises a plurality of second properties different from the first property.4. The method of wherein the first property comprises a first fiber volume fraction claim 1 , the at least one second property comprises at least one second fiber volume fraction claim 1 , and the first fiber volume fraction being different from the at least ...

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Номер записи: 49
03-01-2019 дата публикации

Fabrication and application of nanofiber ribbons and sheets and twisted and non-twisted nanofiber yarns

Номер: US20190002283A1
Автор: Ali E. Aliev, Anvar A. Zakhidov, Chris Williams, Kenneth Ross Atkinson, Mei Zhang, Ray H. Baughman, Sergey Li, Shaoli Fang
Принадлежит: University of Texas System

A nanofiber forest on a substrate can be patterned to produce a patterned assembly of nanofibers that can be drawn to form nanofiber sheets, ribbons, or yarns.

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Номер записи: 50
07-01-2016 дата публикации

Method for the production of a curved ceramic sound attenuation panel

Номер: US20160003106A1
Автор: Eddy Goulliane, Eric Philippe, Sebastien Jimenez, Stephanie Fouquet
Принадлежит: Herakles SA

A method of fabricating a sound attenuation panel of curved shape, the method including impregnating a fiber structure defining a cellular structure with a ceramic precursor resin; polymerizing the ceramic precursor resin while holding the fiber structure on tooling presenting a curved shape corresponding to the final shape of the cellular structure; docking the cellular structure with first and second skins, each formed by a fiber structure impregnated with a ceramic precursor resin, each skin being docked to the cellular structure before or after polymerizing the resin of the skins; pyrolyzing the assembly constituted by the cellular structure and the first and second skins; and densifying the assembly by chemical vapor infiltration.

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Номер записи: 51
20-01-2022 дата публикации

Multi-Layer Zirconia Dental Blank that has a Gradual Change in Strength, Translucency and Chroma from One Direction to The Other After Sintering

Номер: US20220015879A1
Автор: Jung Daniel Yonil, Jung Yunoh
Принадлежит:

A zirconia sintered body comprises zirconia and multiple different areas, including at least one upper area and at least one lower area having a different chemical composition and a different strength. The sintered body has a translucency and a strength with an inverse relationship. The translucency increases in one direction across the multiple different areas and the strength decreasing in the same direction across the multiple different areas. At least part of the sintered body has a total light transmittance of at least 35% and less than 53% to light with a wavelength at least at a point between 400 nm and 600 nm, and at least 51% and less than 57% to light with a wavelength at least at a point between 600 nm and 800 nm, at a thickness of 0.6 mm. At least a part of the sintered body has a strength of at least 925 Mpa. 1. A zirconia sintered body , comprising:a) a sintered body comprising zirconia;b) the sintered body having multiple different areas, including at least one upper area and at least one lower area;c) the at least one upper area and the at least one lower area having a different chemical composition therebetween, with at least one area having a different strength than another area; andd) the sintered body having a translucency and a strength with an inverse relationship, with the translucency increasing in one direction across the multiple different areas and the strength decreasing in the same direction across the multiple different areas, with at least a part of the zirconia sintered body having a total light transmittance of at least 35% and less than 53% to light with a wavelength at least at a point between 400 nm and 600 nm, and at least 51% and less than 57% to light with a wavelength at least at a point between 600 nm and 800 nm, at a thickness of 0.6 mm, and with at least a part of the sintered body having a strength of at least 925 Mpa.2. The zirconia sintered body in accordance with claim 1 , wherein the sintered body is without a color ...

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Номер записи: 52
09-01-2020 дата публикации

Multi-Layer Molded Part

Номер: US20200008910A1
Автор: Bojemueller Enno, Gorbar Michael, Penner Dirk, Tholey Michael
Принадлежит:

A molded part having a multitude of ceramic layers provided on top of one another, and a process for the preparation thereof are described. Further, the use of a multi-layer molded part for preparing a dental restoration is described. 1. A molded part having a plurality of ceramic layers each formed from a ceramic material and provided on top of one another , wherein at least 21 layers are provided on top of one another.2. The molded part according to claim 1 , wherein each of the plurality of ceramic layers have has a thickness of from 1 μm to 120 μm.3. The molded part according to claim 1 , wherein the plurality of ceramic layers comprise the same ceramic material.4. The molded part according to claim 1 , wherein the ceramic material is selected from the group consisting of feldspar ceramics claim 1 , metal oxide ceramics claim 1 , non-oxidic ceramics claim 1 , glass ceramics claim 1 , and a combination thereof.5. The molded part according to claim 1 , wherein at least one ceramic layer has a porosity that is different from a porosity of the other ceramic layers.6. The molded part according to claim 1 , wherein the plurality of ceramic layers consist of different ceramic materials or ceramic materials having different physical properties.7. The molded part according to claim 1 , wherein the ceramic material of at least one of the plurality of ceramic layers includes at least one aggregate.8. The molded part according to claim 7 , wherein said aggregate is selected from the group consisting of dyeing substances claim 7 , nucleating agents claim 7 , fluxes claim 7 , refining agents claim 7 , ceramic fibers claim 7 , nanomaterials claim 7 , stabilizers claim 7 , and a mixture thereof.9. A process for preparing a molded part according to claim 1 , comprising the following steps:a) providing a slip comprising the ceramic material;b) applying the slip to a support material in a desired layer thickness to form a layer;c) drying the layer from step b) to obtain a single ...

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Номер записи: 53
12-01-2017 дата публикации

Manufacturing of single or multiple panels

Номер: US20170009600A1
Автор: Alexander Stankowski, Piero-Daniele Grasso, Sabrina Puidokas
Принадлежит: Ansaldo Energia IP UK Ltd

A method of manufacturing of a structured cooling panel includes cutting of desized 2D ceramic into tissues; slurry infiltration in the tissues by at least one knife blade coating method; laminating the tissues in a multi-layer panel, with slurry impregnation after each layer, wherein the tissue has combined fibres and/or pre-build cooling holes; drying; de-moulding; sintering the multi-layer panel, wherein part of the combined fibres burns out during the sintering process leaving a negative architecture forming the cooling structure and/or the pre-build cooling holes define the cooling structure; finishing, using of i) post-machine, and/or ii) surface smoothening/rework, and/or iii) coating application, and/or other procedures.

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Номер записи: 54
10-01-2019 дата публикации

SUPER HARD CONSTRUCTIONS & METHODS OF MAKING SAME

Номер: US20190009339A1
Автор: KANYANTA VALENTINE, MIRANDA-FERNANDEZ MIRIAM, OZBAYRAKTAR MEHMET SERDAR, ZHANG XIAOXUE, ZUNEGA JONEE CHRISTINE PAREDES
Принадлежит: ELEMENT SIX (UK) LIMITED

A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a structure comprising superhard material, the structure having porosity greater than 20% by volume and up to around 80% by volume. A method of forming such a superhard polycrystalline construction comprises forming a skeleton structure of a first material having a plurality of voids, at least partially filling some or all of the voids with a second material to form a pre-sinter assembly, and treating the pre-sinter assembly to sinter together grains of superhard material to form a body of polycrystalline superhard material comprising a first region of superhard grains, and an interpenetrating second region; the second region being formed of the other of the first or second material that does not comprise the superhard grains; the superhard grains forming a sintered structure having a porosity greater than 20% by volume and up to around 80% by volume. 1. A super hard polycrystalline construction comprising a body of polycrystalline super hard material , the body of polycrystalline super hard material comprising a structure comprising super hard material , the structure having porosity greater than 20% by volume and up to around 80% by volume.2. The construction of claim 1 , further comprising one or more secondary phases located in one or more pores in the structure.3. The construction of wherein the one or more secondary phases comprise any one or more of a ceramic claim 2 , a metal alloy claim 2 , a hardmetal claim 2 , or a polymer.4. The construction of wherein the one or more secondary phases comprise any one or more of titanium claim 2 , alumina claim 2 , TiAlV claim 2 , or an alloy of cobalt and chrome.5. The construction of wherein the one or more secondary phases comprise an interpenetrating network through the super hard material.6. The construction of claim 5 , wherein the interpenetrating network is substantially continuous through the structure.7. ...

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Номер записи: 55
14-01-2021 дата публикации

SEED CRYSTAL HOLDER FOR PULLING UP SINGLE CRYSTAL AND METHOD OF MANUFACTURING SILICON SINGLE CRYSTAL USING THE SAME

Номер: US20210010156A1
Автор: KAWASAKI Eiichi
Принадлежит: SUMCO CORPORATION

A seed crystal holder for pulling up a single crystal is made of a carbon fiber-reinforced carbon composite material, and has a substantially cylindrical shape with a hollow space having a shape matching an outer shape of a substantially rod-shaped seed crystal. A direction of carbon fibers at a part in contact with at least an outer peripheral surface of the seed crystal has isotropy as viewed from a central axis of the hollow space. 1. A method of manufacturing a silicon single crystal by Czochralski (CZ) method , comprising:setting a seed crystal to a seed crystal holder;lowering the seed crystal holder to dip the seed crystal into a silicon melt; andpulling up the seed crystal with the seed crystal holder to grow the silicon single crystal,wherein the seed crystal holder is made of a carbon fiber-reinforced carbon composite material and has a substantially cylindrical shape with a hollow space having a shape matching an outer shape of a substantially rod-shaped seed crystal, a core part in which a direction of carbon fibers has isotropy as viewed from a center axis of the hollow space; and', 'a clad part in which the direction of the carbon fibers has anisotropy as viewed from the center axis of the hollow space, and, 'wherein the seed crystal holder includeswherein the core part is provided at least at a part contacting an outer peripheral surface of the seed crystal.2. The method of manufacturing the silicon single crystal as claimed in claim 1 , wherein the direction of the carbon fibers constituting the core part has a circumferential direction component.3. The method of manufacturing the silicon single crystal as claimed in claim 2 , wherein the direction of the carbon fibers constituting the core part has a component parallel to the center axis.4. The method of manufacturing the silicon single crystal as claimed in claim 1 , wherein the seed crystal holder includes:a cylindrical upper section having a first hole diameter,a cylindrical intermediate section ...

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Номер записи: 56
03-02-2022 дата публикации

INSULATED FERROMAGNETIC LAMINATES AND METHOD OF MANUFACTURING

Номер: US20220032585A1
Автор: "OBrien Michael Joseph", ADHARAPURAPU Raghavendra, Hoel Cathleen Ann, Zhang Lili, Zou Min
Принадлежит:

A method of making a component of an electric machine using an additive manufacturing process is disclosed. The method includes forming a first lamina of a conductive material, building a first layer of a second material on a first surface of the first lamina, treating the second material on the first surface of the first lamina to define a first insulative layer, and building on the first insulative layer a second lamina of a conductive material. The steps can be repeated iteratively until a desired thickness or number of layers is reached. 1. A method of making a laminated component of an electric machine , comprising:forming a first lamina of a conductive first material;depositing a second material on a first surface of the first lamina;treating the second material to thereby define a first insulative layer; andforming, on the first insulative layer, a second lamina of a conductive third material.2. The method of wherein the forming of the first and second lamina comprises depositing a metal powder claim 1 , on a build surface and the first insulative layer claim 1 , respectively claim 1 , and sintering the metal powder.3. The method of wherein the depositing and sintering steps are iteratively repeated until the first and second lamina reach a predetermined respective thickness.4. The method of wherein the second material further comprises a binder material.5. The method of wherein the treating step comprises sintering the second material.6. The method of claim 5 , wherein the second material is an electrically conductive material.7. The method of claim 6 , wherein the treating step further includes at least one of a chemical treatment and a heat treatment.8. The method of claim 7 , wherein the treating step reduces the conductivity of the second material.9. The method of claim 1 , wherein the second material comprises at least one of aluminum oxide (Al2O3) claim 1 , silicon carbide (SiC) claim 1 , silicon dioxide (SiO2) claim 1 , magnesium oxide (MgO) claim 1 , ...

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Номер записи: 57
03-02-2022 дата публикации

FIBER TOWS WITH A HEAT-ACTIVATED SIZING

Номер: US20220033319A1
Автор: Beaber Aaron R., Danielson Zachary A., McCready Erica M., McGee Kari A., Ross Aric W., Schultz Kimberly C.M.
Принадлежит:

Fiber tows including a heat-activatable sizing are described. The sizing compositions have a first modulus at 25° C. of at least 150 megapascals (MPa) and no greater than 400 MPa; and a second modulus of 100,000 pascals (Pa) at a temperature of no greater than 160° C. Methods of preparing articles from such sized fiber tows and the articles comprising such sized fiber tows, including unidirectional and bidirectional constructions are also described. 1. A sized tow comprising a tow of ceramic fibers selected from the group consisting of oxide-based ceramic fibers and non-oxide based ceramic fibers that are based on carbides and nitrides , including oxynitrides , oxycarbides and oxycarbonitrides , and a sizing composition comprising a polymer covering at least a portion of the tow , wherein , as measured according to the Modulus Procedure as described in the Examples portion of the description , the sizing composition has a first modulus at 25° C. of at least 150 megapascals (MPa) and no greater than 400 MPa; and a second modulus of 100 ,000 pascals (Pa) at a temperature of no greater than 160° C.2. The sized tow of claim 1 , wherein the ceramic fibers comprise alpha-alumina.3. The sized tow of claim 1 , wherein the sizing composition is soluble in water.4. The sized tow of claim 1 , wherein the tow of fibers is a spread tow.5. The sized tow of claim 1 , wherein the first modulus is at least 200 MPa.6. The sized tow of claim 1 , wherein the first modulus is no greater than 350 MPa7. The sized tow of claim 6 , wherein the first modulus is no greater than 300 MPa.8. The sized tow of claim 1 , wherein the temperature at which the second modulus is 100 claim 1 ,000 Pa is at least 40° C.9. The sized tow of claim 1 , wherein the temperature at which the second modulus is 100 claim 1 ,000 Pa is no greater than 135° C.10. The sized tow of claim 9 , wherein the temperature at which the second modulus is 100 claim 9 ,000 Pa is between 45° C. and 100° C. claim 9 , inclusive.11. ...

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Номер записи: 58
21-01-2016 дата публикации

Method for Manufacturing Exothermic CeramicS for Microwave Oven and Exothermic Ceramics for Microwaves

Номер: US20160015207A1
Автор: PARK In Ho
Принадлежит:

Disclosed are a method for manufacturing exothermic ceramics for a microwave oven and exothermic ceramics for microwaves. In particular, provided is a method for manufacturing exothermic ceramics for a microwave oven, in which the exothermic ceramics are formed by mixing a ceramic body, such as clay, plastic clay or soil, with an exothermic element prepared by combining at least one selected from silicon carbide, carbon ferrite and iron oxide, which are exothermic components. Accordingly, the exothermic ceramics of the present invention can minimize a sense of difference between the exothermic element and the ceramic body component, which is raw material for ceramics, thereby being capable of emitting high-temperature heat in a short time by means of microwaves as well as maintaining stability in the shape. Furthermore, due to integral forming, the exothermic ceramics have an enhanced elegant design.

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Номер записи: 59
19-01-2017 дата публикации

Compositions and Methods of Attachment of Thick Environmental Barrier Coatings on CMC Components

Номер: US20170016335A1
Автор: Antolino Nicholas Edward, Kirby Glen Harold
Принадлежит:

A coating system on a CMC substrate is provided, along with methods of its tape deposition onto a substrate. The coating system can include a bond coat on a surface of the CMC substrate; a first rare earth silicate coating on the bond coat; a first sacrificial coating of a first reinforced rare earth silicate matrix on the at least one rare earth silicate layer; a second rare earth silicate coating on the sacrificial coating; a second sacrificial coating of a second reinforced rare earth silicate matrix on the second rare earth silicate coating; a third rare earth silicate coating on the second sacrificial coating; and an outer layer on the third rare earth silicate coating. The first sacrificial coating and the second sacrificial coating have, independently, a thickness of about 4 mils to about 40 mils. 1. A coating system on a CMC substrate , the coating system comprising:a first rare earth silicate coating on the substrate, wherein the first rare earth silicate coating comprises at least one rare earth silicate layer;a first sacrificial coating of a first reinforced rare earth silicate matrix on the at least one rare earth silicate layer, wherein the first sacrificial coating has a thickness of about 4 mils to about 40 mils;a second rare earth silicate coating on the sacrificial coating, wherein the second rare earth silicate coating comprises at least one rare earth silicate layer;a second sacrificial coating of a second reinforced rare earth silicate matrix on the second rare earth silicate coating, wherein the second sacrificial coating has a thickness of about 4 mils to about 40 mils; anda third rare earth silicate coating on the second sacrificial coating, wherein the third rare earth silicate coating comprises at least one rare earth silicate layer;an outer layer on the third rare earth silicate coating.2. The coating system of claim 1 , wherein the first sacrificial coating has a thickness of about 8 mils to about 25 mils claim 1 , and wherein the second ...

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Номер записи: 60
21-01-2021 дата публикации

MEMBRANES COMPRISING A LAYER OF METAL ORGANIC FRAMEWORK PARTICLES

Номер: US20210016232A1
Автор: Liu Kangsheng
Принадлежит:

A filtration membrane that includes a porous substrate layer and an active layer arranged over at least a part of the substrate layer. The active layer comprises a metal-organic framework (MOF). Also disclosed are methods for of producing a filtration membrane and uses of the filtration membrane for water treatment. 1. A filtration membrane , the membrane comprising a porous substrate layer and an active layer arranged over at least a part of the substrate layer , wherein the active layer comprises a metal-organic framework (MOF).2. A method of producing the filtration membrane claim 1 , according to claim 1 , wherein the membrane comprises a porous substrate layer and an active layer arranged over at least a part of the substrate layer claim 1 , wherein the active layer comprises a metal-organic framework (MOF) claim 1 , the method comprising the steps of:a. optionally preparing the substrateb. contacting the substrate with a coating composition comprising the MOF;c. optionally, drying the membrane.3. A filtration membrane wherein the membrane comprises a porous substrate layer and an active layer arranged over at least a part of the substrate layer claim 2 , wherein the active layer comprises a metal-organic framework (MOF) claim 2 , wherein the filtration membrane is formed by the method of .4. A coating composition for use in the manufacture of filtration membranes for use in gravity claim 2 , pressure claim 2 , or vacuum deposition claim 2 , or printing of filtration membranes claim 2 , the composition comprising at least one metal-organic framework material or precursor thereof.5. The membrane of claim 1 , wherein the substrate is a polymeric substrate claim 1 , a ceramic substrate claim 1 , a composite substrate claim 1 , an inorganic-organic substrate and/or a metal substrate.6. The membrane according to claim 5 , wherein the ceramic porous substrate is formed one or more of zeolite claim 5 , silicon claim 5 , silica claim 5 , alumina claim 5 , zirconia ...

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Номер записи: 61
19-01-2017 дата публикации

Carbon fiber/ceramic chassis

Номер: US20170017272A1
Автор: Jason S. Morrison, Kevin L. Kamphuis
Принадлежит: Dell Products LP

A chassis defines a system housing that houses a processing system and a display system. A chassis wall provided on the chassis includes a first carbon fiber layer that provides an outer surface of the chassis that is located opposite the chassis wall from the housing and a ceramic layer that is bonded to the first carbon fiber layer and located opposite the first carbon fiber layer from the outer surface. The ceramic layer provides additional stiffness to the chassis wall to resist deflection of the chassis wall into at least one of the display system and the processing system in response to a force. The chassis wall may include a second carbon fiber layer that is bonded to the ceramic layer and located opposite the ceramic layer from the first carbon fiber layer to provide an inner surface of the chassis wall.

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Номер записи: 62
21-01-2021 дата публикации

THERMALLY-CONDUCTIVE POLYMER AND COMPONENTS

Номер: US20210016542A1
Автор: Cordatos Haralambos, ZAFIRIS Georgios S.
Принадлежит:

A method of forming a component includes depositing a ceramic material within an open-cell void of a polymer body. The ceramic material deposited around the periphery of the open-cell void structure forms a thermally-conductive path through the polymer body. The ceramic material circumscribes an open volume extending the entire length of the thermally-conductive path that is filled with a sealant such that fluids are incommunicable from the first surface to the second surface via the thermally-conductive path. A method of forming a heat exchanger includes forming a plurality of plates, each plate formed as a thermally-conductive polymer body. The method of forming the heat exchanger further includes arranging the plurality of plates within a housing to form a plate and frame heat exchanger configured to place a first flowpath in a heat exchange relationship with a second flowpath. 1. A method of forming a component comprising: 'depositing the ceramic material around the periphery of the conductive path using atomic layer deposition to form an open volume circumscribed by the ceramic material that extends along the entire thermally-conductive path; and', 'depositing a ceramic material within an open-cell void of a polymer body, the ceramic material forming a thermally-conductive path from a first surface of the polymer body to a second surface of the polymer body, wherein depositing the ceramic material comprisesfilling the open volume with a sealant.2. The method of claim 1 , wherein atomic layer deposition is plasma-enhanced atomic layer deposition.3. The method of claim 2 , wherein plasma-enhanced atomic layer deposition is performed in a reactor held at a temperature between 250° C. and 280° C.4. The method of claim 2 , wherein plasma-enhanced atomic layer deposition comprises:flowing a ceramic precursor into a reactor containing the polymer body;purging the reactor;exposing the polymer body to a plasma mixture; andventilating the reactor.5. The method of claim 4 ...

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Номер записи: 63
21-01-2021 дата публикации

High toughness inorganic composite artificial stone panel and preparation method thereof

Номер: US20210017079A1
Автор: BIN Li, Fucai Liu, Heming Huang, Min Xiao, Zengyong ZHENG
Принадлежит: Individual

A high toughness inorganic composite artificial stone panel and preparation method are disclosed. The panel includes a surface layer, an intermediate metal fiber toughening layer and a substrate toughening layer. The surface layer includes the following components: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of inorganic active powder, 0.5-4 parts of pigment, 0.3-1 part of water reducer and 3-10 parts of water. The intermediate metal fiber toughening layer includes the following components: 40-60 parts of inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of water reducer, 6-14 parts of water and 4-8 parts of metal fiber. The substrate toughening layer includes the following components: 30-50 parts of inorganic active powder, 30-55 parts of quartz sand, 15-20 parts of quartz powder, 0.5-1.2 parts of water reducer, 4-8 parts of water and 0.8-2.5 parts of toughening agent.

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Номер записи: 64
19-01-2017 дата публикации

USE OF SINTERED NANOGRAINED YTTRIUM-BASED CERAMICS AS ETCH CHAMBER COMPONENTS

Номер: US20170018408A1
Автор: Daugherty John, Li Siwen, Shih Hong, SRINIVASAN Satish, Xu Lin
Принадлежит:

In accordance with this disclosure, there are provided several inventions, including an apparatus and method for creating a plasma resistant part, which may be formed of a sintered nanocrystalline ceramic material comprising yttrium, oxide, and fluoride. Example parts thus made may include windows, edge rings, or injectors. In one configuration, the parts may be yttria co-sintered with alumina, which may be transparent. 1. A plasma resistant part adapted for use in a plasma processing chamber which is configured to produce a plasma while in an operating mode , wherein the part comprises a plasma-facing surface configured to face the plasma when the plasma chamber is in the operating mode , wherein the surface is formed of a sintered nanocrystalline ceramic material comprising yttrium in addition to oxide and/or fluoride.2. The plasma resistant part of claim 1 , wherein the ceramic material comprises YO.3. The plasma resistant part of claim 1 , wherein the ceramic material comprises YFor YOF.4. The plasma resistant part of claim 1 , wherein the part is an edge ring.5. The plasma resistant part of claim 1 , wherein the part is a gas injector.6. The plasma resistant part of claim 1 , further comprising a first layer and a second layer that are co-sintered together claim 1 , and wherein the plasma-facing surface is part of the second layer claim 1 , and the second layer is a nanocrystalline ceramic material.7. The plasma resistant part of claim 6 , wherein the first layer is a microcrystalline ceramic material.8. The plasma resistant part of claim 7 , wherein the first layer comprises alumina.9. The plasma resistant part of claim 7 , wherein the plasma resistant part is a window.10. A plasma processing apparatus comprising the plasma resistant part of claim 1 , further comprising:the plasma processing chamber; anda substrate support,wherein the plasma resistant part is situated in the plasma processing chamber, such that its plasma-facing surface faces the plasma when ...

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Номер записи: 65
03-02-2022 дата публикации

Manufacturing method of ceramic powder

Номер: US20220037088A1
Автор: Chie Kawamura, Kazumichi HIROI, Osamu Hattori
Принадлежит: TAIYO YUDEN CO LTD

A manufacturing method of ceramic powder includes mixing a barium carbonate having a specific surface are of 15 m2/g or more, a titanium dioxide having a specific surface area of 20 m2/g or more, a first compound of a donor element having a larger valence than Ti, and a second compound of an acceptor element having a smaller valence than Ti and having a larger ion radium than Ti and the donor element, and synthesizing barium titanate powder by calcining the barium carbonate, the titanium dioxide, the first compound and the second compound until a specific surface area of the barium titanate powder becomes 4 m2/g or more and 25 m2/g or less.

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Номер записи: 66
17-01-2019 дата публикации

ELECTROSTATIC CHUCK

Номер: US20190019715A1
Автор: MAEHATA Kengo, Sasaki Hitoshi, UEFUJI Jumpei, YAMAGUCHI Kosuke, Yoshii Yuichi
Принадлежит:

An electrostatic chuck includes a ceramic dielectric substrate, a base plate, and a heater plate. The heater plate is provided between the ceramic dielectric substrate and the base plate. The heater plate includes first and second support plates, first and second resin layers, and a heater element. Each of the first and second resin layers is provided between the first support plate and the second support plate. The heater element includes first and second electrically conductive portions. The first electrically conductive portion is provided between the first resin layer and the second resin layer. The second electrically conductive portion is separated from the first electrically conductive portion in an in-plane direction. The first resin layer contacts the second resin layer between the first electrically conductive portion and the second electrically conductive portion. 1. An electrostatic chuck , comprising:a ceramic dielectric substrate where a processing object is placed;a base plate supporting the ceramic dielectric substrate and being provided at a position separated from the ceramic dielectric substrate in a stacking direction; anda heater plate provided between the ceramic dielectric substrate and the base plate, a first support plate including a metal and being provided between the ceramic dielectric substrate and the base plate,', 'a second support plate including a metal and being provided between the first support plate and the base plate,', 'a first resin layer provided between the first support plate and the second support plate,', 'a second resin layer provided between the first resin layer and the second support plate,', 'a heater element provided between the first resin layer and the second resin layer, the heater element emitting heat due to a current flowing, the heater element including a first electrically conductive portion and a second electrically conductive portion, the second electrically conductive portion being separated from the ...

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Номер записи: 67
17-04-2014 дата публикации

Sodium niobate powder, method of manufacturing a sodium niobate powder, plate-like particle, method of manufacturing a plate-like particle, and method of manufacturing an oriented ceramics

Номер: US20140106170A1
Автор: Hiroshi Saito, Jumpei Hayashi, Nobuhiro Kumada, Takayuki Watanabe
Принадлежит: Canon Inc, University of Yamanashi NUC

Provided are methods of manufacturing an oriented ceramics containing sodium niobate and a raw material thereof. Specifically, provided is a sodium niobate powder, including cuboidal sodium niobate particles having an average side length of 0.1 μm or more to 100 μm or less, at least one face of the cuboid including a (100) plane in pseudo-cubic notation, in which the sodium niobate powder has a perovskite single-phase structure.

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Номер записи: 68
21-01-2021 дата публикации

Plasma processing device member, plasma processing device comprising said plasma processing device member, and method for manufacturing plasma processing device member

Номер: US20210020415A1
Автор: Kazuhiro Ishikawa, Shuichi Saito, Takashi Hino
Принадлежит: Kyocera Corp

A plasma processing device member according to the disclosure includes a base material and a film formed of an oxide, or fluoride, or oxyfluoride, or nitride of a rare-earth element, the film being disposed on at least part of the base material, the film including a surface to be exposed to plasma, the surface having an area occupancy of open pores of 8% by area or more, and an average diameter of open pores of 8 μm or less.

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Номер записи: 69
26-01-2017 дата публикации

Processes and materials for casting and sintering green garnet thin films

Номер: US20170022112A1
Автор: Gengfu Xu, Niall DONNELLY, Oleh Karpenko, Sriram Iyer, Tim Holme
Принадлежит: Quantumscape Corp

Set forth herein are processes and materials for making ceramic thin films by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin films and subsequently sintering the thin films under controlled atmospheres and on specific substrates.

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Номер записи: 70
10-02-2022 дата публикации

ADDITIVELY MANUFACTURED CASTING CORE-SHELL MOLD AND CERAMIC SHELL WITH VARIABLE THERMAL PROPERTIES

Номер: US20220040754A1
Автор: Brown Michael, COLE Michael, GARAY Gregory Terrence, KONITZER Douglas Gerard, PANG Tingfan, PRZESLAWSKI Brian David, Yang Xi
Принадлежит:

The present disclosure relates to a method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity. 1. A method of fabricating a ceramic casting mold comprising steps of:forming an outer shell portion on at least a portion of the ceramic core-shell mold, wherein the core-shell mold is formed of a first ceramic material and comprises:a core portion, a shell portion, and at least one first hollow cavity between the core portion and the shell portion, wherein the outer shell portion comprises a second ceramic material, wherein core-shell mold and the outer shell portion have different thermal properties.2. The method of fabricating a ceramic casting mold of further comprising steps of:connecting a wax component to the core-shell mold prior to forming the outer shell portion; and removing the wax component after the outer shell portion is formed to form at least a second hollow cavity in fluid communication with the first hollow cavity.3. The method of fabricating a ceramic casting mold of claim 1 , wherein the shell portion of the ceramic core-shell mold has a specific geometry to include at least one of a gap claim 1 , local thickening claim 1 , and local thinning of the first ceramic material so that the thickness of the second ceramic material varies along the surface of the core-shell ceramic mold.4. The method of fabricating a ...

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Номер записи: 71
26-01-2017 дата публикации

VACUUM INSULATING MATERIAL AND REFRIGERATOR INCLUDING SAME

Номер: US20170023291A1
Автор: KAL Seung Hoon, Kim Hyung Sung, Park Jong Sung, YOOK Se Won
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed are a vacuum insulating material having an improved structure as to enhance insulation and durability and a refrigerator having the same. The vacuum insulating material includes a core material, a first envelope disposed at an outer side of the core material, a blocking layer disposed between the core material and the first envelope, and a second envelope coupling to the first envelope to form an accommodating space in which the core material and the blocking layer are accommodated, wherein the blocking layer is welded or adhered to the first envelope to form an integral unit with the first envelope. 1. A vacuum insulating material , comprising:a core material;a first envelope disposed at an outer side of the core material;a blocking layer disposed between the core material and the first envelope; anda second envelope coupling to the first envelope to form an accommodating space in which the core material and the blocking layer are accommodated,wherein the blocking layer is welded or adhered to the first envelope to be integrally formed with the first envelope.2. The vacuum insulating material of claim 1 , wherein:the first envelope and the second envelope have different thermal conductivities from each other.3. The vacuum insulating material of claim 1 , wherein:the first envelope has a lower thermal conductivity than that of the second envelope.4. The vacuum insulating material of claim 1 , wherein:the first envelope includes an aluminum deposition envelope, and the second envelope includes an aluminum foil envelope.5. The vacuum insulating material of claim 1 , further comprising:a blocking layer disposed between the core material and the second envelope,wherein the blocking layer is welded or adhered to the second envelope to form an integral unit with the second envelope.6. The vacuum insulating material of claim 5 , wherein:the first envelope and the second envelope each includes an aluminum deposition envelope.7. The vacuum insulating material of ...

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Номер записи: 72
28-01-2021 дата публикации

PREPARATION SYSTEM AND PREPARATION METHOD FOR GEL COMPOSITE MATERIAL

Номер: US20210023833A1
Автор: Liu Ping, RAO Liangbo, WEI Ronghui, Zhang Qiuhua
Принадлежит:

A preparation system and preparation method for a gel composite material. Periodic impregnation can be performed and the gel composite material product performed gelation can be rewound and recycled by moving a movable impregnation mechanism back and forth along an impregnation platform; specifically, during the process that the movable impregnation mechanism moves from the front end to the rear end of the impregnation platform, a first unwinding device can be controlled to lay a reinforcing body to be impregnated on a worktable, the impregnation device can be controlled to guide the prefabricated sol onto the reinforcing body to be impregnated, and a second unwinding device can be controlled to cover a covering carrier on an upper surface of the impregnated reinforcing body; when the movable impregnation mechanism moves to the rear end of the impregnation platform, the first unwinding device, the impregnation device, and the second unwinding device can be controlled to stop. The preparation system of the gel composite material, and the preparation method using the preparation system of the gel composite material have high degree of automation, and can significantly improve the production efficiency, thereby reducing production costs. 1. A system for preparing a gel composite material , comprising:an impregnation platform having a worktable; and a fixing base capable of moving back and forth along the impregnation platform, and', 'a first unwinding device, an impregnation device, a second unwinding device, a third unwinding device, a first rewinding device, and a second rewinding device, which are disposed on the fixing base, wherein, 'a movable impregnation mechanism comprisingthe first unwinding device is configured to unwind a to-be-impregnated reinforcing body to lay the reinforcing body to be impregnated on the worktable;the impregnation device is configured to guide a prefabricated sol to the to-be-impregnated reinforcing body laid on the impregnation platform ...

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Номер записи: 73
23-01-2020 дата публикации

Multi-phasic ceramic composite

Номер: US20200024195A1
Автор: Diana R. TIERNEY, Kenneth R. DELAHUNTY, Matthew CREEDON, Tom J. TRUNZO
Принадлежит: Saint Gobain Ceramics and Plastics Inc

A ceramic composite can include a first ceramic phase and a second ceramic phase. The first ceramic phase can include a silicon carbide. The second phase can include a boron carbide. In an embodiment, the silicon carbide in the first ceramic phase can have a grain size in a range of 0.8 to 200 microns. The first phase, the second phase, or both can further include a carbon. In another embodiment, at least one of the first ceramic phase and the second ceramic phase can have a median minimum width of at least 5 microns.

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Номер записи: 74
28-01-2021 дата публикации

INSULATION PANEL

Номер: US20210024419A1
Автор: Bremser Wolfgang, MÜHL Christian, OSWALD Arthur
Принадлежит:

Insulation panel made from an insulation panel precursor comprising at least one modified layered silicate. 115-. (canceled)16. An insulation panel precursor comprising at least one modified layered mineral and optionally at least one fibrous component.17. The insulation panel precursor according to claim 16 , wherein the modified layered mineral is a modified layered silicate or a layered double hydroxide.18. The insulation panel precursor according to claim 16 , wherein the insulation panel precursor comprises at least one spatial structure.19. The insulation panel precursor according to claim 18 , wherein the spatial structure is in the form of a corrugated film claim 18 , honeycomb-like claim 18 , trapezial-corrugated claim 18 , perpendicular spiral-shaped claim 18 , grid-like claim 18 , pyramid-shaped or spherical structure.20. The insulation panel precursor according to claim 18 , wherein the insulation panel precursor or the spatial structure includes cavities that are distributed within the insulation panel precursor or the spatial structure.21. The insulation panel precursor according to claim 20 , wherein the cavities are filled with at least one of air claim 20 , inert gas claim 20 , foamed inorganic insulation material claim 20 , foamed organic insulation material and high-performance polymer foam.22. The insulation panel precursor according to which comprises a plurality of different or equal spatial structures.23. The insulation panel precursor according to claim 18 , wherein the spatial structure is formed from modified layered minerals.24. The insulation panel precursor according to claim 17 , wherein the modified layered silicate is at least one of organically or inorganically modified.25. A process of preparing an insulation panel precursor according to comprising the following steps:(a) providing a dispersion comprising at least one modified layered silicate in at least one solvent,(b) applying the dispersion obtained in step (a) onto a surface,(c ...

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Номер записи: 75
23-01-2020 дата публикации

COPPER COOLING PLATE WITH MULTILAYER PROTRUSIONS COMPRISING WEAR RESISTANT MATERIAL, FOR A BLAST FURNACE

Номер: US20200024677A1
Автор: HERRERO BLANCO Ignacio
Принадлежит:

A cooling plate for use in a blast furnace is described. The cooling plate has a copper body having an inner face containing ribs parallel therebetween, having first extremities and separated by grooves having second extremities. At least one of these grooves containing at least a part of a multilayer protrusion extending between its second extremities and having at least one layer made of a wear resistant material that increases locally the wear resistance of the neighboring ribs. 115-. (canceled)16. A cooling plate for a blast furnace , said cooling plate comprising a copper body having an inner face comprising ribs parallel therebetween , having first extremities opposite therebetween and separated by grooves having second extremities opposite therebetween , wherein at least one of said grooves comprises at least a part of a multilayer protrusion extending between said second extremities and comprising at least one layer made of a wear resistant material that increases locally the wear resistance of neighboring ribs.17. The cooling plate according to claim 16 , wherein said wear resistant material is chosen from a group comprising a metal and a ceramic.18. The cooling plate according to claim 17 , wherein that said metal is a wear-resistant steel or cast iron.19. The cooling plate according to claim 17 , wherein said wear resistant ceramic is silicon carbide claim 17 , an extruded silicon carbide or other refractory material with good resistant to spalling and high hardness.20. The cooling plate according to claim 16 , wherein said multilayer protrusion comprises a first layer made of a material having a high thermal conductivity claim 16 , and a second layer made of said wear resistant material and set on top of said first layer.21. The cooling plate according to claim 20 , wherein said material of said first layer is chosen from a group comprising a high conductivity metal copper and a copper alloy.22. The cooling plate according to claim 20 , wherein said ...

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Номер записи: 76
29-01-2015 дата публикации

Composite Laminated Ceramic Electronic Component

Номер: US20150030830A1
Автор: Hiroshige ADACHI, Kazuhiro Kaneko, Sadaaki Sakamoto, Satoru Adachi, Seiji Fujita
Принадлежит: Murata Manufacturing Co Ltd

A composite laminated ceramic electronic component that includes co-fired low dielectric-constant ceramic layers and high dielectric-constant ceramic layers. The low dielectric-constant ceramic layers and the high dielectric-constant ceramic layers are each composed of a glass ceramic containing: a first ceramic composed of MgAl 2 O 4 and/or Mg 2 SiO 4 ; a second ceramic composed of BaO, RE 2 O 3 (where RE is a rare-earth element), and TiO 2 ; glass containing each of 44.0 to 69.0 weight % of RO (where R is an alkaline-earth metal), 14.2 to 30.0 weight % of SiO 2 , 10.0 to 20.0 weight % of B 2 O 3 , 0.5 to 4.0 weight % of Al 2 O 3 , 0.3 to 7.5 weight % of Li 2 O, and 0.1 to 5.5 weight % of MgO; and MnO. The content ratios of the glass, etc. are varied between the low dielectric-constant ceramic layers and the high dielectric-constant ceramic layers.

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Номер записи: 77
23-01-2020 дата публикации

ENGINEERED SIC-SIC COMPOSITE AND MONOLITHIC SIC LAYERED STRUCTURES

Номер: US20200027580A1
Автор: Back Christina, DECK Christian Peter, Sheeder Jonathan David, ZHANG JIPING
Принадлежит:

Systems, structures, devices, and fabrication processes for ceramic matrix composites suitable for use in a nuclear reactor environment and other applications requiring materials that can withstand high temperatures and/or highly corrosive environments are disclosed. In one aspect, a ceramic composite structure is provided. The structure comprises a chamber including an external shell and a hollow space inside the external shell. The external shell includes an inner composite layer including a first composite structure, a middle composite layer placed outside of the inner composite layer, the middle composite layer including a second composite structure that is different from the first composite structure, and an outer monolithic layer that has a spatially uniform material property and placed outside of the middle composite layer. 1. A ceramic composite structure comprising a chamber including an external shell and a hollow space inside the external shell , wherein the external shell includes:an inner composite layer including a first composite structure,a middle composite layer placed outside of the inner composite layer, the middle composite layer including a second composite structure that is different from the first composite structure, andan outer monolithic layer that has a spatially uniform material property and placed outside of the middle composite layer.2. The structure of claim 1 , further comprising:one or more composite layers placed between the inner composite layer and the middle composite layer, each of the one or more composite layers having a different composite structure.3. The structure of claim 1 , further comprising:one or more monolithic layers placed between the middle composite layer and the outer monolithic layer.4. The structure of claim 3 , further comprising:a plurality of thin layers deposited between the outer monolithic layer and the one or more monolithic layers, and between each of the one or more monolithic layers, to inhibit crack ...

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Номер записи: 78
04-02-2016 дата публикации

High Strength Carbon Fiber Composite Wafers For Microfabrication

Номер: US20160031188A1
Автор: Davis Andrew L., Davis Robert C., Liddiard Steven D., Vanfleet Richard, Zufeldt Kyle
Принадлежит:

A method of making a high strength carbon fiber composite (CFC) wafer with low surface roughness comprising at least one sheet of CFC including carbon fibers embedded in a matrix. A stack of at least one sheet of CFC is provided with the stack having a first surface and a second surface. The stack is pressed between first and second pressure plates with a porous breather layer disposed between the first surface of the stack and the first pressure plate. The stack is cured by heating the stack to a temperature of at least 50° C. 1. A method of making a wafer , the method comprising:a. providing a stack of at least one sheet of carbon fiber composite (CFC) including carbon fibers embedded in a matrix, the stack having a first surface and a second surface;b. pressing the stack between first and second pressure plates with a porous breather layer disposed between the first surface of the stack and the first pressure plate; andc. curing by heating the stack to a temperature of at least 50° C., defining a first curing process.2. The method of claim 1 , further comprising disposing a solid claim 1 , polished layer between the second surface of the stack and the second pressure plate during the first curing process with the polished layer having a root mean square surface roughness Rq of less than 300 nm in an area of 100 micrometers by 100 micrometers claim 1 , on a side facing the stack.3. The method of claim 1 , further comprising:a. releasing pressure from the stack;b. removing the porous layer from the stack;c. disposing a polished layer on each side of the stack, the polished layers having a root mean square surface roughness Rq of less than 300 nm in an area of 100 micrometers by 100 micrometers, on a side facing the stack; andd. pressing the stack and polished layers between first and second pressure plates;e. curing by heating the stack to a temperature of at least 50° C., defining a second curing process.4. The method of claim 1 , wherein the porous breather layer ...

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Номер записи: 79
28-01-2021 дата публикации

Dielectric ceramic composition and multilayer ceramic capacitor comprising the same

Номер: US20210027944A1
Автор: Jae Sung Park, Jeong Yun PARK, Ji Hong Jo, Kyung Sik Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

A dielectric ceramic composition includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, the accessory ingredient including dysprosium (Dy) and praseodymium (Pr) as first accessory ingredients. A content of the Pr satisfies 0.233 mol≤Pr≤0.699 mol, based on 100 mol of the barium titanate base material main ingredient.

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Номер записи: 80
30-01-2020 дата публикации

METHOD FOR PRODUCING A BLANK, BLANK AND A DENTAL RESTORATION

Номер: US20200030064A1
Автор: FECHER Stefan, KUTZNER Martin, OEFNER Tanja, VOLKL Lothar
Принадлежит: DENTSPLY SIRONA Inc.

The invention relates to a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a die and wherein the materials are pressed and after pressing are sintered. A layer of the first ceramic material is thereby filled into the die and a first cavity formed in the layer, the second ceramic material is then filled into the first open cavity and the materials pressed together and then heat-treated. 1. A pre-sintered or fully-sintered blank for use in preparing a dental restoration , the blank comprising regions of different compositions , wherein one first region of a first ceramic material and at least one second region of a second ceramic material are of different compositions and the regions are sited next to one another , wherein the ceramic materials contain zirconium dioxide doped with yttrium oxide (YO) , calcium oxide (CaO) , magnesium oxide (MgO) and/or ceroxide (CeO) , and wherein the first ceramic material differs from the material of the second ceramic material in terms of color and proportions of stabilized crystal forms present at room temperature , and wherein the at least one second region extends within the first region and has an external geometry that tapers from a base region or a base surface.2. The blank according to claim 1 , wherein the base region or the base surface of the at least one second region extends in the region of an outer surface of the first region.3. The blank according to claim 1 , wherein the at least one second region starting from its base region or base surface has a cavity.4. The blank according to claim 1 , wherein the at least one second region has a conus-like geometry on its outer side.5. The blank according of claim 1 , wherein the at least one second region includes a third region extending at least partially therein claim 1 , the third region including a third ceramic material having a composition different from that of the first and/or ...

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Номер записи: 81
17-02-2022 дата публикации

ARTICLES FOR CREATING HOLLOW STRUCTURES IN CERAMIC MATRIX COMPOSITES

Номер: US20220048825A1
Автор: Coons Timothy P., LI Tao, Weimer Michael James, Yang Xi
Принадлежит:

The present disclosure relates to a method of fabricating a ceramic composite components. The method may include providing at least a first layer of reinforcing fiber material which may be a pre-impregnated fiber. An additively manufactured component may be provided on or near the first layer. A second layer of reinforcing fiber, which may be a pre-impregnated fiber may be formed on top the additively manufactured component. A precursor is densified to consolidates at least the first and second layer into a densified composite, wherein the additively manufactured material defines at least one cooling passage in the densified composite component. 113-. (canceled)14. A method of fabricating a composite component comprising:at least partially covering a core having an organic binder and at least one of Si, SiO, and SiO2 with a reinforcing fiber material, wherein the core defines at least one cooling passage in the composite component.15. The method for fabricating a composite component of claim 14 , wherein the core is formed by:(a) contacting a cured portion of a workpiece with a liquid photopolymer;(b) irradiating a portion of the liquid photopolymer adjacent to the cured portion through a window contacting the liquid photopolymer;(c) removing the workpiece from the uncured liquid photopolymer; and(d) repeating steps (a)-(c) until the core is formed.16. The method of fabricating a composite component of claim 14 , further comprising:performing an infiltration process with a ceramic matrix precursor material, wherein the precursor is densified and consolidates at least a first and second layer of the reinforcing fiber material into a densified composite, wherein the core defines at least one cooling passage in the densified composite component.17. The method of fabricating a composite component of claim 14 , wherein the reinforcing fiber material is pre-impregnated with a ceramic matrix precursor material.18. The method of fabricating a composite component of claim 14 ...

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Номер записи: 82
30-01-2020 дата публикации

Method of manufacturing a singulated feedthrough insulator for a hermetic seal of an active implantable medical device incorporating a post conductive paste filled pressing step

Номер: US20200030613A1
Автор: Brian P. Hohl, Christine A. Frysz, Dallas J. Rensel, Keith W. Seitz, Robert A. Stevenson, Thomas Marzano
Принадлежит: Greatbatch Ltd

A method for manufacturing a singulated feedthrough insulator for a hermetic seal of an active implantable medical device (AIMD) is described. The method begins with forming a green-state ceramic bar with a via hole filled with a conductive paste. The green-state ceramic bar is dried to convert the paste to an electrically conductive material filling via hole and then subjected to a pressing step. Following pressing, a green-state insulator is singulated from the green-state ceramic bar. The singulated green-state insulator in next sintered to form an insulator that is sized and shaped for hermetically sealing to close a ferrule opening. The thusly produced feedthrough is suitable installation in an opening in the housing of an active implantable medical device.

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Номер записи: 83
31-01-2019 дата публикации

METHOD FOR PREPREGGING TACKIFIER FOR CMC ARTICLES

Номер: US20190031573A1
Автор: Prevost Erica L., Sember Alex J.
Принадлежит:

A method of creating a tackified prepreg, includes steps of providing a fiber weave having unidirectional fibers and woven sections spaced apart from one another to provide unidirectional fiber sections, applying a tackifier to the fiber weave, arranging layers of the fiber weave onto one another to provide a stack, and wrapping the stack around a form to provide an article having a desired shape. 1. A method of creating a tackified prepreg , comprising steps of:providing a fiber weave having unidirectional fibers and woven sections spaced apart from one another to provide unidirectional fiber sections;applying a tackifier to the fiber weave;arranging layers of the fiber weave onto one another to provide a stack; andwrapping the stack around a form to provide an article having a desired shape.2. The method according to claim 1 , comprising the step of applying a resin to the article in a mold.3. The method according to claim 2 , wherein the resin is a liquid at room temperature.4. The method according to claim 3 , wherein the resin is a ceramic-based.5. The method according to claim 4 , wherein the tackifier and resin are silicon carbide-based.6. The method according to claim 1 , comprising heating and curing the article.7. The method according to claim 6 , comprising the step of machining the cured article.8. The method according to claim 7 , comprising the step of pyrolyzing the article claim 7 , including the tackifier and the resin claim 7 , subsequent to the machining step.9. A CMC article for a gas turbine engine comprising:a wall having multiple tacks joined to one another, each stack including multiple layers, wherein the layers consist of unidirectional fibers forming a ceramic matrix composite with a resin and a tackifier that are different than one another. This application is a divisional application of U.S. patent application Ser. No. 15/022,015, filed on Mar. 15, 2016, which is a U.S. National Phase Application of International Application No. PCT/ ...

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Номер записи: 84
31-01-2019 дата публикации

MONOLITHIC CERAMIC GAS DISTRIBUTION PLATE

Номер: US20190032211A1
Автор: Lingampalli Ramkishan Rao, Tucker Jeremy
Принадлежит: LAM RESEARCH CORPORATION

A monolithic ceramic gas distribution plate for use in a process chamber wherein semiconductor substrates can be processed includes a monolithic ceramic body having an upper surface, a lower surface, and an outer cylindrical surface extending between the upper surface and the lower surface. The lower surface includes first gas outlets at uniformly spaced apart first locations and the first gas outlets are in fluid communication with first gas inlets in the upper surface by a first set of vertically extending through holes connecting the first gas inlets with the first gas outlets. The lower surface also includes second gas outlets at uniformly spaced second locations adjacent the first locations and the second gas outlets are in fluid communication with an inner plenum in the monolithic ceramic body by a second set of vertically extending through holes connecting the second gas outlets with the inner plenum. The inner plenum is in in fluid communication with a second gas inlet located in a central portion of the upper surface and the inner plenum is defined by an inner upper wall, an inner lower wall, an inner outer wall, and a set of pillars extending between the inner upper wall and the inner lower wall. Each through hole of the first set of vertically extending through holes passes through a respective one of the pillars to isolate the first and second gases. 1. A monolithic ceramic gas distribution plate for use in a chemical deposition apparatus wherein semiconductor substrates can be processed , the gas distribution plate comprising:a monolithic ceramic body having an upper surface, a lower surface, and an outer cylindrical surface extending between the upper surface and the lower surface;first gas outlets in the lower surface at uniformly spaced apart first locations, the first gas outlets in fluid communication with first gas inlets in the upper surface by a first set of vertically extending through holes connecting the first gas inlets with the first gas ...

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Номер записи: 85
04-02-2021 дата публикации

METHOD FOR MAKING HYBRID CERAMIC/METAL, CERAMIC/CERAMIC BODY BY USING 3D PRINTING PROCESS

Номер: US20210031404A1
Автор: Peterson Brian, Yang Xi
Принадлежит:

This invention relates to a product and a method of preparing ceramic and/or ceramic hybrid materials through the construction of a printed die. The printed die being made by three dimensional printing or additive manufacturing processes possesses both an external geometry and an internal geometry. 1. A ceramic composite comprising a ceramic body including external features corresponding to a mold pattern and at least one internal cavity; and at least a second material within the internal cavity that is different than the ceramic body , wherein the geometry of the at least one internal cavity includes at least one of an aspect ratio in the range of 100:1 to 5:1 or a diameter in the range of approximately 0.010 inch to 0.100 inch.2. The ceramic composite of claim 1 , wherein the second material includes a metal insert of a geometry that matches the geometry of the at least one internal cavity.3. The ceramic composite of claim 1 , wherein the second material includes a ceramic material that is different than the ceramic body.4. The ceramic composite of claim 1 , wherein the second material is a rod of alumina or quartz.5. The ceramic composite of claim 4 , wherein the rod includes a ceramic coating that is sintered to the ceramic body such that a sintered bond exists between the ceramic body and the rod and wherein the rod reinforces the ceramic body.6. The ceramic composite of claim 1 , wherein the second material is sintered to the ceramic body such that the first and second materials together form a contiguous structure in which the second material reinforces the ceramic body.7. The ceramic composite of claim 6 , wherein the internal cavity is non-linear.8. The ceramic composite of claim 1 , wherein the internal cavity is non-linear and the geometry of the second material matches the geometry of the at least one internal cavity.9. A ceramic composite comprising a ceramic body including external features corresponding to a mold pattern and at least one non-linear ...

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Номер записи: 86
04-02-2021 дата публикации

WEAR RESISTANT ARTICLES AND APPLICATIONS THEREOF

Номер: US20210031492A1
Автор: Meyer Michael J., PEREZ Martin G., Zheng Qingjun
Принадлежит:

Wear resistant articles are described herein which, in some embodiments, mitigate CTE differences between wear resistant components and metallic substrates. In one aspect, an article comprises a layer of sintered cemented carbide bonded to a layer of iron-based alloy via a metal-matrix composite bonding layer, wherein coefficients of thermal expansion (CTE) of the sintered cemented carbide layer, metal matrix composite bonding layer, and iron-based alloy layer satisfy the relation: 2. The article of claim 1 , wherein (CTE Fe−CTE WC) is 2 to 6×101/K.3. The article of claim 1 , wherein (CTE Fe−CTE WC) is 3 to 5×101/K.4. The article of claim 1 , wherein the layer of sintered cemented carbide is free of cracks.5. The article of claim 1 , wherein the coefficients of thermal expansion increase in a direction from the sintered cemented carbide to the iron-based alloy.6. The article of claim 1 , wherein metallic binder is present in an amount of 6 to 25 weight percent of the sintered cemented carbide.7. The article of claim 1 , wherein the iron-based alloy comprises nickel in an amount of 25-35 weight percent and cobalt in an amount of 6-25 weight percent.8. The article of claim 1 , wherein the layer of sintered cemented carbide has thickness greater than 5 mm.9. The article of claim 1 , wherein hard particles are present in the metal matrix composite bonding layer in an amount of 30 to 60 weight percent.10. The article of claim 8 , wherein the hard particles comprise tungsten carbide particles.11. The article of claim 1 , wherein the metal matrix composite bonding layer comprises nickel-based matrix alloy.12. The article of claim 1 , wherein the metal matrix composite bonding layer comprises cobalt-based matrix alloy.14. The method of claim 13 , wherein bonding the layer of sintered cemented carbide to the layer of iron-based alloy comprises positioning a sheet between the sintered cemented carbide layer and the iron-based alloy layer to provide a layered assembly claim 13 ...

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Номер записи: 87
01-02-2018 дата публикации

Method for producing hermetic package

Номер: US20180033951A1
Автор: Toru Shiragami
Принадлежит: Nippon Electric Glass Co Ltd

A technical object of the present invention is to devise a method by which bonding strength between an element base and a sealing material layer can be increased without thermal degradation of a member to be housed inside, to thereby improve long-term reliability of a hermetic package. A method of producing a hermetic package of the present invention includes the steps of: preparing a ceramic base and forming a sealing material layer on the ceramic base; preparing a glass substrate and arranging the ceramic base and the glass substrate so that the glass substrate is brought into contact with the sealing material layer on the ceramic base; and irradiating the sealing material layer with laser light from a glass substrate side to seal the ceramic base and the glass substrate with each other through intermediation of the sealing material layer, to thereby provide a hermetic packages.

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Номер записи: 88
04-02-2021 дата публикации

SENSOR FOR DETERMINING GAS PARAMETERS

Номер: US20210033556A1
Автор: ASMUS Tim, DIETMANN Stefan, Muziol Matthias
Принадлежит: Heraeus Nexensos GmbH

A high-temperature sensor, having at least one completely ceramic heater and at least one first sensor structure arranged on a first side of the completely ceramic heater, at least in areas. And a method for producing a sensor. 115-. (canceled)16. A high-temperature sensor , comprising:at least one completely ceramic heater; andat least one first sensor structure arranged on a first side of the completely ceramic heater, at least in areas.17. The sensor according to claim 16 , wherein the completely ceramic heater comprises:at least one electrically conductive ceramic; wherein the electrically conductive ceramic makes contact with electrodes in at least two positions separate from one another; andat least one electrically insulating ceramic, wherein the electrically insulating ceramic completely encloses the electrically conductive ceramic.18. The sensor according to claim 17 , wherein the electrically conductive ceramic comprises ceramic powders comprising silicide claim 17 , carbonate claim 17 , and/or nitride powder claim 17 , and at least one element from the tungsten claim 17 , tantalum claim 17 , niobium claim 17 , titanium claim 17 , molybdenum claim 17 , zirconium claim 17 , hafnium claim 17 , vanadium claim 17 , and/or chromium group claim 17 , and in that the electrically insulating ceramic is formed from heat-conducting ceramic powders comprising silicon nitride and/or aluminum nitride.19. The sensor according to claim 16 , wherein the completely ceramic heater has a thickness between 0.5 mm and 1.5 mm.20. The sensor according to claim 16 , wherein the sensor comprises:at least one first insulating layer arranged on the first side of the completely ceramic heater, at least in areas; and/orat least one second insulating layer arranged, at least in areas, on a second side of the completely ceramic heater, which is opposite the first side.21. The sensor according to claim 20 , wherein the first insulating layer and/or the second insulating layer comprises an ...

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Номер записи: 89
09-02-2017 дата публикации

Multi-Layer Plate Device

Номер: US20170036285A1
Автор: Balma Frank, Elliot Alfred Grant, Elliot Brent Donald Alfred, Rex Dennis George, Schuster Richard Erich, Veytser Alexander
Принадлежит:

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck. 1. A multi-layer ceramic plate assembly for use in semiconductor processing , said multi-layer ceramic plate assembly comprising:an upper plate layer, said upper plate layer comprising ceramic;a lower plate layer, said lower plate layer comprising ceramic;said upper plate layer and said lower plate layer joined together to form an interior space between said upper plate layer and said lower plate layer within an annulus of an annular joining layer, andan annular joining layer disposed between said upper plate layer and said lower plate layer, wherein said annular joining layer joins an outer periphery of a bottom surface of said upper plate layer to a top surface of an outer periphery of said lower plate layer, wherein said joining layer comprises metallic aluminum, and wherein said joining layer hermetically seals said interior space between said upper plate layer and said lower plate layer from the exterior of said ceramic plate assemble through said joining layer, wherein said joining layer hermetically seals with a joint with a vacuum leak rate of less than 1×10E−9 sccm He/sec.2. The multi-layer ceramic plate assembly of wherein said lower plate layer comprises aluminum nitride.3. The multi-layer ceramic plate assembly of wherein said upper plate layer comprises aluminum ...

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Номер записи: 90
08-02-2018 дата публикации

SUPERHARD CONSTRUCTIONS AND METHODS OF MAKING SAME

Номер: US20180036696A1
Автор: Can Nedret, SALEHI Sedigheh
Принадлежит: ELEMENT SIX (UK) LIMITED

A superhard polycrystalline construction () comprises a first region () comprising a body of thermally stable polycrystalline superhard material having an exposed surface forming a working surface (), and a peripheral side edge (), a second region () forming a substrate to the first region, and a third region () at least partially interposed between the first and second regions wherein the third region comprises a material more acid resistant than polycrystalline diamond material having a binder-catalyst phase comprising cobalt, and/or more acid resistant than cemented carbide material. 1. A superhard polycrystalline construction comprising:a first region comprising a body of thermally stable polycrystalline superhard material having an exposed surface forming a working surface, and a peripheral side edge;a second region forming a substrate to the first region; anda third region at least partially interposed between the first and second regions; wherein:the third region comprises a material more acid resistant than polycrystalline diamond material having a binder-catalyst phase comprising cobalt, and/or more acid resistant than cemented carbide material.2. The super hard polycrystalline construction as claimed in claim 1 , wherein the third region extends to and forms part of the working surface.3. The superhard polycrystalline construction of any one of the preceding claims claim 1 , wherein the material of the third region has a fracture toughness of between around 4 MPa√m to around 15 MPa√m.4. The superhard polycrystalline construction of any one of the preceding claims claim 1 , wherein the third region has an outer peripheral surface claim 1 , the first region extending around at least a portion of the peripheral outer surface of the third region.5. The super hard polycrystalline construction as claimed in any one of the preceding claims claim 1 , wherein the first region comprises one or more segments located in one or more recesses in the third region.6. The ...

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Номер записи: 91
08-02-2018 дата публикации

MANUFACTURING METHOD OF MULTILAYER SHELL-CORE COMPOSITE STRUCTURAL COMPONENT

Номер: US20180036802A1
Автор: Li Yadong, LI Yajun
Принадлежит:

A manufacturing method of a multilayer shell-core composite structural component comprises the following procedures: (1) respectively preparing feeding material for injection forming of a core layer, a buffer layer and a shell layer, wherein the powders of feeding material of the core layer and the shell layer are selected from one or more of metallic powder, ceramic powder or toughened ceramic powder, and are different from each other, and the powder of feeding material of the buffer layer is gradient composite material powder; (2) layer by layer producing the blank of multilayer shell-core composite structural component by powder injection molding; (3) degreasing the blank; and (4) sintering the blank to obtain the multilayer shell-core composite structural component. The multilayer shell-core composite structural component has the advantages of high surface hardness, abrasion resistance, uniform thickness of the shell layer, stable and persistent performance. 1. A method for manufacturing a ball valve body having a multilayer shell-core composite structure , comprising:preparing feedstocks of a shell layer, at least one transition layer and a liner layer respectively, each of the feedstocks being formed by mixing a main powder of one of the three layers, a binder and an additive comprising a surface active agent and a plasticizer, wherein the main powder of the at least one transition layer comprises at least one mixed powder formed by mixing the main powder of the shell layer with the main powder of the liner layer at a ratio;performing a powder injection molding with the feedstocks, to obtain a green body of the ball valve body comprising the shell layer, the at least one transition layer and the liner layer;performing debinding on the green body of the ball valve body; andsintering the green body of the ball valve body after being debound, to obtain the ball valve body;wherein the main powder of the liner layer is made of a powdered toughened ceramic material, ...

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Номер записи: 92
08-02-2018 дата публикации

COATED MEMBER AND METHOD OF MANUFACTURING THE SAME

Номер: US20180037515A1
Автор: HANADA Tadayuki, Kurimura Takayuki, Matsumoto Mineaki, NISHIKAWA Kosuke
Принадлежит:

Provided are a coated member in which damage of a coating film can be suppressed in a high temperature environment and the coating may be performed at low cost, and a method of manufacturing the same. A coated member includes a bond coat and a top coat sequentially laminated on a substrate made of a Si-based ceramic or a SiC fiber-reinforced SiC matrix composite, wherein the top coat includes a layer composed of a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd) and YSiOor a (YLn)SiOsolid solution (here, Ln is any one of Nd, Sm, Eu, and Gd), or a mixed phase of a (YLn)SiOsolid solution (here, Lnis any one of Sc, Yb, and Lu) and YSiOor a (YLn)SiOsolid solution (here, Ln is any one of Sc, Yb, and Lu). 1. A coated member comprising:a bond coat and a top coat sequentially laminated on a substrate made of a silicon (Si)-based ceramic or a SiC fiber-reinforced SiC matrix composite,wherein the top coat includes a first layer composed of a mixed phase of a rare earth disilicate and a rare earth monosilicate,{'sub': 1-a', '1a', '2', '2', '7', '1', '1', '1, 'the rare earth disilicate being a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd, a is 0.1 or more and 0.5 or less when Lnis Nd, Sm, or Eu, and a is 0.2 or more and 0.5 or less when Lnis Gd), and'}{'sub': 2', '5', '1-b', '1′b', '2', '5', '1′, 'the rare earth monosilicate being YSiOor a (YLn)SiOsolid solution (here, Lnis any one of Nd, Sm, Eu, and Gd, and b is more than 0 and equal to or less than 0.5).'}2. A coated member comprising:a bond coat and a top coat sequentially laminated on a substrate made of a Si-based ceramic or a SiC fiber-reinforced SiC matrix composite,wherein the top coat includes a first layer composed of a mixed phase of a rare earth disilicate and a rare earth monosilicate,{'sub': 1-c', '2c', '2', '2', '7', '2', '2', '2, 'the rare earth disilicate being a (YLn)SiOsolid solution (here, Lnis any one of Sc, Yb, and Lu, when Lnis Sc, c is 0.05 or more ...

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Номер записи: 93
24-02-2022 дата публикации

ULTRATHIN GRAPHENE/POLYMER LAMINATE FILMS

Номер: US20220055356A1
Автор: Aracne-Ruddle Chantel, Campbell Patrick, Espinosa-Loza Francisco J., Kim Sung Ho, Miller Philip E., Stadermann Michael
Принадлежит:

A process includes layering a graphene layer onto a polymer layer to form a composite film. 1. A process , comprising:layering a graphene layer onto a polymer layer to form a composite film.2. The process of claim 1 , wherein the layering is performed in a solution.3. The process of claim 2 , wherein the graphene layer floats on the solution claim 2 , wherein the layering includes causing the polymer layer to lift the graphene layer from the solution.4. The process of claim 2 , wherein the solution has a neutral pH.5. The process of claim 1 , comprising layering a second graphene layer onto the composite film.6. The process of claim 5 , wherein the second graphene layer is added to the polymer layer on a side of the composite film claim 5 , the side being opposite the graphene layer.7. The process of claim 5 , wherein the second graphene layer is added to a side of the composite film claim 5 , the side being the same side as the graphene layer.8. The process of claim 5 , comprising coupling a third graphene layer to the composite film.9. The process of claim 1 , comprising coupling a second polymer layer to the composite film.10. The process of claim 1 , wherein the graphene layer includes several layers of graphene.11. The process of claim 1 , wherein the graphene layer is a single layer of graphene.12. The process of claim 1 , wherein the graphene layer includes islands of graphene held together by van der Waals forces.13. The process of claim 1 , wherein the graphene layer covers an entire side of the polymer layer. This invention was made with Government support under Contract No. DE-AC52-07NA27344 awarded by the United States Department of Energy. The Government has certain rights in the invention.This application claims priority to U.S. Nonprovisional patent application Ser. No. 15/698,473 filed Sep. 7, 2017, which is herein incorporated by reference.The present invention relates to polymer laminate films, and more particularly, this invention relates to ...

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Номер записи: 94
06-02-2020 дата публикации

YTTRIUM ALUMINUM GARNET BASED THERMAL BARRIER COATINGS

Номер: US20200039888A1
Автор: Gell Maurice, Jiang Chen, Jordan Eric H., Kumar Rishi
Принадлежит: THE UNIVERSITY OF CONNECTICUT

A multi-layer coating that allows arrest of contaminant infiltration includes at least one layer that is not very reactive to an infiltrating reactive species, and at least one highly reactive ceramic layer (HRC layer) containing materials that react to slow or arrest contaminant infiltration. 1. A multi-layer coating that allows arrest of contaminant infiltration comprising:at least one layer that is not very reactive to an infiltrating reactive species, andat least one highly reactive ceramic layer (HRC layer) containing materials that react to slow or arrest contaminant infiltration.2. The multi-layer coating of claim 1 , wherein the HRC layer comprises one or more oxides of Y and/or one or more oxides of any lanthanide (La claim 1 , Ce claim 1 , Pr claim 1 , Nd claim 1 , Pm claim 1 , SM claim 1 , Eu claim 1 , Gd claim 1 , Tb claim 1 , Dy claim 1 , Ho claim 1 , Er claim 1 , Tm claim 1 , Yb claim 1 , Lu).3. The multi-layer coating of claim 1 , comprising one or more inert layers or phases and one or more reactive layers or phases.4. The multi-layer coating of claim 1 , wherein the coating comprises at least two layers of yttrium aluminum garnet (YAG) and a layer comprising YObetween at least two layers of YAG.5. The multi-layer coating of claim 1 , wherein the coating comprises at least two layers of YAG claim 1 , and a layer of GdZrObetween at least two layers of YAG; and another layer of YAG between at least two layers of YAG and also between the layers comprising YOand GdZrO.6. The multi-layer coating of claim 1 , wherein the coating comprises a first layer that includes YOand GdZrObetween layers of YAG and a second layer of YO+GdZrObetween layers of YAG.7. The multi-layer coating of comprising more than one inert layer and more than one reactive layer.8. The multi-layer coating of claim 1 , wherein the coating is made by the solution precursor plasma spray process.9. The multi-layer coating of claim 1 , wherein the coating is used as a thermal barrier coating. ...

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Номер записи: 95
18-02-2016 дата публикации

DUAL LAYER SANDWICH FOR THERMAL MANAGEMENT

Номер: US20160046098A1
Автор: EMBLER Jonathan D., Heng Sangvavann, JR. James P., Ledesma, Lehman Leanne L., PINNEY Thomas R.
Принадлежит:

A thermal protection system including a plurality of layers. A first layer includes a passive insulation material. A second layer includes a phase change insulation material. A third layer is positioned between the first layer and the second layer to separate the passive insulation material from the phase change insulation material. A structural system extends through the first layer, the second layer, the third layer, or a combination thereof. 1. A thermal protection system , the system comprising:a first layer comprising a passive insulation material;a second layer comprising a phase change insulation material;a third layer positioned between the first layer and the second layer to separate the passive insulation material from the phase change insulation material; anda structural system that extends through the first layer, the second layer, or a combination thereof.2. The thermal protection system of claim 1 , wherein the structural system comprises one or more truss pins claim 1 , flutes claim 1 , baffles claim 1 , honeycombs claim 1 , or a combination thereof.3. The thermal protection system of claim 1 , wherein the structural system comprises a truss pin that extends through the first layer claim 1 , the second layer claim 1 , and the third layer.4. The thermal protection system of claim 1 , wherein the structural system comprises a truss pin that is coupled to the third layer.5. The thermal protection system of claim 4 , wherein an end of the truss pin is embedded in the third layer.6. The thermal protection system of claim 4 , wherein an end of the truss pin is oriented at an angle with respect to a body of the truss pin claim 4 , and wherein the angle is from about 45° to about 135°.7. The thermal protection system of claim 6 , wherein the end of the truss pin is on an opposite side of the third layer from the body.8. The thermal protection system of claim 6 , wherein the end of the truss pin is substantially parallel with the third layer.9. A thermal ...

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Номер записи: 96
24-02-2022 дата публикации

METHOD OF PRODUCING MULTILAYER CERAMIC ELECTRONIC COMPONENT, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20220059289A1
Автор: AWATA Hiroki, TANAKA Yuichiro
Принадлежит:

A method of producing a multilayer ceramic electronic component includes a lamination step of producing a laminate by laminating green sheets each with an internal electrode layer formed thereon, an isotropic pressing step of subjecting the laminate to isotropic pressing, a flattening step of shaving one or both of main surfaces of the isotropic pressed laminate to flatten the one or both of the main surfaces of the laminate, and a rigid pressing step of pressing the flattened laminate from both of the main surfaces with a rigid body on each of the main surfaces. 1. A method of producing a multilayer ceramic electronic component , the method comprising:producing a laminate by laminating green sheets each including an internal electrode layer formed thereon;subjecting the laminate to isotropic pressing;shaving one or both of main surfaces of the isotropic pressed laminate to flatten the one or both of the main surfaces of the laminate; andpressing the flattened laminate from both of the main surfaces with a rigid body on each of the main surfaces.2. The method of producing a multilayer ceramic electronic component according to claim 1 , whereinin the laminating green sheets, an outer green sheet without an internal electrode layer formed thereon is laminated on at least one main surface of the laminate; andin the shaving the one or both main surfaces of the isotropic pressed laminate, the main surface of the laminate including the outer green sheet is flattened by shaving the outer green sheet partially or entirely.3. The method of producing a multilayer ceramic electronic component according to claim 1 , wherein the main surfaces of the flattened laminate have a flatness of about 15 μm or less.4. The method of producing a multilayer ceramic electronic component according to claim 1 , wherein in the shaving the one or both main surfaces of the isotropic pressed laminate claim 1 , a thickness of the laminate is reduced by about 30 μm or more and about 150 μm or less ...

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Номер записи: 97
07-02-2019 дата публикации

CERAMIC POWDER

Номер: US20190043668A1
Автор: HATTORI Osamu, HIROI Kazumichi, KAWAMURA Chie
Принадлежит:

Ceramic powder includes: barium titanate as a main component, wherein: a donor element having a larger valence than Ti is solid-solved in the barium titanate; an acceptor element having a smaller valence than Ti and larger ion radius than Ti and the donor element is solid-solved in the barium titanate, a solid solution amount of the donor element with respect to the barium titanate is 0.05 mol or more and 0.3 mol or less; a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less; and relationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”. 1. Ceramic powder comprising:barium titanate as a main component,wherein:a donor element having a larger valence than Ti is solid-solved in the barium titanate;an acceptor element having a smaller valence than Ti and larger ion radius than Ti and the donor element is solid-solved in the barium titanate,a solid solution amount of the donor element with respect to the barium titanate is 0.05 mol or more and 0.3 mol or less on a presumption that an amount of the barium titanate is 100 mol and the donor element is converted into an oxide;a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less on a presumption that the amount of the barium titanate is 100 mol and the acceptor element is converted into an oxide; andrelationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”.2. The ceramic powder as claimed in claim 1 , wherein the donor element is at least one of Mo and W.3. The ceramic powder as claimed in claim 1 , wherein the acceptor element is Mn. This application is a continuation of application Ser. No. 15/623,253, filed Jun. ...

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Номер записи: 98
06-02-2020 дата публикации

THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION ELEMENT, THERMOELECTRIC CONVERSION MODULE, AND METHOD FOR MANUFACTURING THERMOELECTRIC CONVERSION MATERIAL

Номер: US20200044131A1
Автор: Nakada Yoshinobu
Принадлежит:

A thermoelectric conversion material formed of a sintered body containing magnesium silicide as a main component contains 0.5 mass % or more and 10 mass % or less of aluminum oxide. The aluminum oxide is distributed at a crystal grain boundary of the magnesium silicide. 1. A thermoelectric conversion material formed of a sintered body containing magnesium silicide as a main component , the thermoelectric conversion material comprising 0.5 mass % or more and 10 mass % or less of aluminum oxide ,wherein the aluminum oxide is distributed at a crystal grain boundary of the magnesium silicide.2. The thermoelectric conversion material according to claim 1 , further comprising one or more elements selected from a group consisting of Li claim 1 , Na claim 1 , K claim 1 , B claim 1 , Ga claim 1 , In claim 1 , N claim 1 , P claim 1 , As claim 1 , Sb claim 1 , Bi claim 1 , Ag claim 1 , Cu claim 1 , and Y claim 1 , as a dopant.3. The thermoelectric conversion material according to claim 1 , wherein the thermoelectric conversion material is formed of the sintered body of magnesium silicide free of a dopant.4. The thermoelectric conversion material according to claim 1 , further comprising aluminum.5. The thermoelectric conversion material according to claim 4 ,wherein a concentration of aluminum in a crystal grain of the sintered body is 0.005 atom % or more and 0.20 atom % or less.6. The thermoelectric conversion material according to claim 1 ,wherein a concentration of aluminum in a crystal grain of the sintered body is 0.5 atom % or more and 2 atom % or less, the concentration being obtained by analyzing an inside of the crystal grain of the sintered body with SEM-EDX with an acceleration voltage of 3 kV after heating to 600° C. in a steam atmosphere under pressure of 200 Pa, retaining at 600° C. for 10 minutes, and cooling to 25° C.7. A thermoelectric conversion material formed of a sintered body containing magnesium silicide as a main component claim 1 ,{'sub': 2', 'x', '1- ...

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Номер записи: 99
16-02-2017 дата публикации

Conveying Apparatus and a Conveying Method of Separator of Electric Device

Номер: US20170047568A1
Автор: Sawada Yasuhiro
Принадлежит:

A conveying apparatus for a separator of an electrical device alternately laminates a first electrode and a second electrode of different polarity from the first electrode, with a separator interposed therebetween to form a laminated body for conveyance. The separator includes a melt material representing a substrate and a heat-resistant material laminated on one surface of the melt material and having a higher melting point than the melt material. The separator conveying apparatus includes a drive member which makes contact with the separator and conveys the separator; and a pressure member which, while urging the drive member via the separator, is driven by the drive member. The drive member makes contact with the melt material portion of the separator. With this separator conveying apparatus, it is possible to maintain constant feed size or dimension of the separator assembly. 1. A method of conveying separator material used to form a separator of an electrical device , the method comprising:laminating a melt material and a heat-resistant material together to form the separator material, the heat-resistant material having a melting point higher than the melt material;winding a first roll of the separator material around a first winding roller with the melt material in contact with the first winding roller;conveying the first roll of the separator material using a first drive member and a first pressure member, the first drive member driven by a first drive motor and in contact with the melt material of the first roll of the separator material, and the first pressure member driven by the first drive member via the separator material, wherein the first pressure member is formed of metal and contacts the heat-resistant material of the first roll of the separator material, wherein the first roll is conveyed at a constant feed rate.2. The method of claim 1 , wherein the first drive member is formed of an elastic material at a portion in contact with the melt material ...

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Номер записи: 100