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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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Применить Всего найдено 30203. Отображено 100.

05-01-2012 дата публикации

Methods of fabricating a polycrystalline diamond structure

Номер: US20120000136A1

Автор: Mohammad N. Sani

Принадлежит: US Synthetic Corp

In an embodiment, a method of fabricating a polycrystalline diamond structure includes forming an assembly including a sintered polycrystalline diamond body positioned between an aluminum-containing layer and a substrate. The method further includes subjecting the assembly to a high-pressure/high-temperature process to form the polycrystalline diamond structure including a polycrystalline diamond table bonded to the substrate.

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Номер записи: 1

05-01-2012 дата публикации

Flush joint

Номер: US20120001422A1

Автор: Christian His, Franceline Villermaux, Guillaume Belly

Принадлежит: Saint Gobain Centre de Recherche et dEtudes Europeen SAS

A device including a first part made of ceramic material shrink fitted with a first shrink ring, in which an edge of an axial end of a cylindrical portion of the first part to which the first shrink ring is fitted and an edge of an axial end of the first shrink ring belong to one and the same transverse plane.

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Номер записи: 2

19-01-2012 дата публикации

Method and apparatus associated with anisotropic shrink in sintered ceramic items

Номер: US20120015797A1

Автор: M. Eric Schlienger, Michael D. Baldwin, Michael Maguire, Nina Bergan French, Paul Withoy

Принадлежит: Individual

A manufacturing method for producing ceramic item from a photocurable ceramic filled material by stereolithography. The method compensates for the anisotropic shrinkage of the item during firing to produce a dimensionally accurate item.

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Номер записи: 3

02-02-2012 дата публикации

Ceramic honeycomb structure and its production method

Номер: US20120023879A1

Автор: Shunji Okazaki

Принадлежит: Hitachi Metals Ltd

A ceramic honeycomb structure having a large number of flow paths defined by porous cell walls; said porous cell walls being composed of cordierite crystals, mullite crystals, corundum crystals and/or spinel crystals; the percentage of the X-ray diffraction intensity of the cordierite crystals being 72% or more and less than 85%, the percentage of the X-ray diffraction intensity of the mullite crystals being 15-25%, and the percentage of the total X-ray diffraction intensity of the corundum crystals and the spinel crystals being 5% or less, per the total X-ray diffraction intensity of these crystals; said porous cell walls having a true density of 2.55-2.70 g/cm 3 , a mean pore diameter of 10-20 μm, and a porosity of 50-65%; the volume of pores having diameters exceeding 50 μm being 8-25% of the total pore volume, the volume of pores having diameters of less than 10 μm being 16-25% of the total pore volume, and the pore diameter distribution deviation σ being 0.5 or less.

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Номер записи: 4

16-02-2012 дата публикации

Highly zirconia-based refractory and melting furnace

Номер: US20120036895A1

Автор: Hironori Sato

Принадлежит: Asahi Glass Co Ltd

A highly zirconia-based refractory suitable for an electric melting furnace, which has a high electrical resistivity and does not exhibit a chipping off phenomenon and which is scarcely susceptible to extraction of components even when in contact with molten low alkali glass and, hence, is less susceptible to cracking during operation. The highly zirconia-based refractory that includes, as chemical components by mass %, from 85 to 95% of ZrO 2 in terms of inner percentage, from 3.0 to 10% of SiO 2 in terms of inner percentage, from 0.85 to 3.0% of Al 2 O 3 in terms of inner percentage, substantially no Na 2 O, from 0.01 to 0.5% of K 2 O in terms of outer percentage, from 1.5 to 3.0% of SrO in terms of inner percentage, and from 0.1 to 2.0% of Nb 2 O 5 and/or Ta 2 O 5 as a value obtained by [(Nb 2 O 5 content)+(Ta 2 O 5 content/1.66)], in terms of inner percentage.

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Номер записи: 5

23-02-2012 дата публикации

Cubic boron nitride compact

Номер: US20120042576A1

Автор: Nedret Can, Stig Ake Andersin

Принадлежит: Individual

A CBN compact which contains CBN and a matrix phase, wherein the CBN grain size volume frequency distribution has a distribution spread expressed as d90-d10 of 1 micron or greater, and the d90 maximum value is 5 micron or less.

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Номер записи: 6

23-02-2012 дата публикации

Refractory product with high zirconia content

Номер: US20120046156A1

Автор: Isabelle Cabodi, Michel Gaubil, Sophie Papin

Принадлежит: Saint Gobain Centre de Recherche et dEtudes Europeen SAS

A fused and cast refractory product including, in mass percentages on the basis of the oxides and for a total of 100% of the oxides: ZrO 2 + Hf 2 O: balance to 100%; SiO 2 : 7.0% to 11.0%; Al 2 O 3 : 0.2% to 0.7%; Na 2 O + K 2 O: <0.10%; B 2 O 3 : 0.3% to 1.5%; CaO + SrO + MgO + ZnO + BaO: <0.4%; P 2 O 5 : <0.15%; Fe 2 O 3 + TiO 2 : <0.55%; Other oxide species: <1.5%; the mass content of a dopant selected from Nb 2 O 5 , Ta 2 O 5 and mixtures thereof being of less or equal to 1.0%, and the A/B ratio of the Al 2 O 3 /B 2 O 3 mass contents being less than or equal to 2.0.

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Номер записи: 7

08-03-2012 дата публикации

Polycrystalline diamond element

Номер: US20120055717A1

Автор: Bronwyn Annette Kaiser, Danny Eugene Scott, Humphrey Samkelo Lungisani Sithebe, John Hewitt Liversage, Kaveshini Naidoo, Michael Lester Fish

Принадлежит: Individual

An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated region, the unmasked or unpassivated region defining a boundary with the substrate, the boundary being the interface. At least some of the internal diamond surfaces of the masked or passivated region contact a mask or passivation medium, and some or ail of the interstices of the masked or passivated region and of the unmasked or unpassivated region are at least partially filled with an infiltrant material.

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Номер записи: 8

22-03-2012 дата публикации

Phosphor particle group and light emitting apparatus using the same

Номер: US20120068595A1

Автор: Kenji Terashima, Masatsugu Masuda, Tetsuya Hanamoto

Принадлежит: Sharp Corp

Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON substantially represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein 60% or more of the phosphor particle group is composed of the phosphor particles in which a value obtained by dividing a longer particle diameter by a shorter particle diameter is greater than 1.0 and not greater than 3.0. A high-efficiency and stable light emitting apparatus using a β-type SiAlON, which includes a light converter using the phosphor particle group, and a phosphor particle group therefor are also provided.

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Номер записи: 9

29-03-2012 дата публикации

Magneto-optic nanocrystalline oxides and methods of forming the same

Номер: US20120076712A1

Автор: Jason R. Morales, Javier E. Garay

Принадлежит: UNIVERSITY OF CALIFORNIA

Rare earth magneto-optical nanocrystalline oxides provide a material that is transparent in the visible range and has a high magnetic response to external magnetic fields. The material can be manufactured using current activated pressure assisted densification (CAPAD). The result is a rare earth magneto-optical nanocrystalline oxide having an average grain size of less than about 100 nm and a Verdet constant greater than or equal to about 300 rad T −1 m −1 for light having a wavelength of about 632.8 nm.

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Номер записи: 10

26-04-2012 дата публикации

Refractory material with stainless steel and organic fibers

Номер: US20120096795A1

Автор: Alonso P. Rodriguez

Принадлежит: Individual

A refractory includes a cement, a binder and a matrix. The matrix comprises both stainless steel fibers and organic fibers. The refractory can be easily cast, without additional steel reinforcement, into large fire wall 16 panels 10 capable of meeting the requirements of testing conducted in accordance with ASTM E-119, Standard Test Methods for Fire Tests of Building Construction and Materials in support of IEEE Std. 979-1994, Guide for Substation Fire Protection . The fire wall 16 assembly withstood the fire endurance test without passage of flame and gases hot enough to ignite cotton waste during a four-hour fire exposure. The assembly also withstood a 45 psi water stream for five minutes immediately following the four-hour fire exposure period. This is a stringent mechanical requirement, as all fire walls 16 must maintain their integrity before, during and after a fire, per the Universal Building Code's definition of a true fire wall 16.

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Номер записи: 11

03-05-2012 дата публикации

Composite Tooling

Номер: US20120107555A1

Автор: David M. Kaschak, Douglas J. Miller, Gary Dale Shives, Gerald F. Hoffert, Irwin C. Lewis, John Lichtenberg, Richard L. Shao, Robert A Mercuri

Принадлежит: Individual

A carbon foam article useful for, inter alia, composite tooling or other high temperature applications, which includes a substrate, wherein the substrate includes at least one material selected from carbon foam, extruded graphite, graphite foam, and isomolded graphite. The tool may also include a skin as a working surface and a filler disposed below the skin. The tool has a surface roughness of no more than about 63 micro-inches. Such a tool may be used to make a composite prototype part.

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Номер записи: 12

10-05-2012 дата публикации

Green emitting material

Номер: US20120112129A1

Автор: Andreas Tuecks, Baby-Seriyati Schreinemacher, Peter J. Schmidt

Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

The invention relates to an improved green emitting material of the form M I 3-x-y M II x Si 6-x Al x O 12 N 2 :Eu y , whereby M I is an earth alkali metal and M II is a rare earth metal or Lanthanum. This material can be made as a ceramic using a low temperature sintering step, resulting in a better and more uniform ceramic body.

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Номер записи: 13

31-05-2012 дата публикации

Precision pressing and sintering of cutting inserts, particularly indexable cutting inserts

Номер: US20120134758A1

Автор: Andreas Schlagenhof, Bernd Bitterlich, Kilian Friederich, Michael Fripan, Ulrich Mowlai, Wolfgang KRÜMMEL

Принадлежит: Individual

A ready-for-use ceramic produced by sintering a blank and comprising an upper and a lower face, both of which have a support surface for mounting in a clamp mounting of a cutting tool, lateral faces connecting the upper and lower faces, and cutting edges which have chamfers.

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Номер записи: 14

07-06-2012 дата публикации

Shaded zirconium oxide articles and methods

Номер: US20120139141A1

Автор: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin

Принадлежит: IVOCLAR VIVADENT AG

A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.

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Номер записи: 15

21-06-2012 дата публикации

Self-Toughened High-Strength Proppant and Methods Of Making Same

Номер: US20120157358A1

Автор: Christopher E. Coker, Christopher Y. FANG, Dilip K. Chatterjee, Yuming Xie

Принадлежит: Oxane Materials Inc

Methods are described to make strong, tough, and lightweight whisker-reinforced glass-ceramic composites through a self-toughening structure generated by viscous reaction sintering of a complex mixture of oxides. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.

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Номер записи: 16

28-06-2012 дата публикации

Piezoelectric ceramic, method for producing same, and piezoelectric device

Номер: US20120161588A1

Автор: Keiichi Hatano, Yutaka Doshida

Принадлежит: TAIYO YUDEN CO LTD

Disclosed is a piezoelectric ceramic which is characterized by containing [K 1-x Na x ] 1-y Li y [Nb 1-z-w Ta z Sb w ]O 3 (wherein x, y, z and w each represents a molar ratio and satisfies 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦w≦1) as the main phase and K 3 Nb 3 O 6 Si 2 O 7 as a sub-phase, while containing, as an additive, a Cu compound in an amount of 0.02-5.0 mol in terms of CuO relative to 100 mol of the main phase.

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Номер записи: 17

28-06-2012 дата публикации

Liquid crystal display

Номер: US20120162573A1

Автор: Kenji Terashima, Kohsei Takahashi, Masanori Watanabe, Masatsugu Masuda, Tetsuya Hanamoto

Принадлежит: Individual

A liquid crystal display including a backlight and a filter, the backlight including a light-emitting device having a light-emitting element emitting blue light, and a green phosphor and a red phosphor absorbing a part of primary light emitted from the light-emitting element and emitting first secondary light and second secondary light, respectively, the green phosphor being a β-type SiAlON phosphor containing Eu and Al dissolved in a crystal of a nitride or an oxynitride having a β-type Si 3 N 4 crystal structure, and the filter including filters for colors of red (R), green (G), blue (B) and yellow (Y), respectively, arranged in a plane for subpixels provided in each pixel of the liquid crystal display, which attains excellent color reproducibility (NTSC ratio) and high luminance, can be provided.

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Номер записи: 18

05-07-2012 дата публикации

Biosoluble inorganic fiber

Номер: US20120168665A1

Автор: Hideki Kitahara, Takahito Mochida, Takashi Nakajima

Принадлежит: Nichias Corp

An inorganic fiber having the following composition: 71 wt % to 80 wt % of SiO 2 , 18 wt % to 27 wt % of CaO, 0 to 3 wt % of MgO, and 1.1 wt % to 3.4 wt % of Al 2 O 3 , wherein the amount of each of ZrO 2 and R 2 O 3 (R is selected from Sc, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y or mixtures thereof) is 0.1 wt % or less, the amount of each alkaline metal oxide is 0.2 wt % or less and the total amount of SiO 2 , CaO, MgO and Al 2 O 3 is 99 wt % or more.

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Номер записи: 19

12-07-2012 дата публикации

Nano-porous precursors for opto-ceramics via novel reactive dissolution

Номер: US20120175558A1

Автор: Carol Click, Samuel David Conzone

Принадлежит: Schott Corp

The invention relates to a process for preparing porous glass particles suitable for use as precursor materials for production of an opto-ceramic element. The process comprises: providing particles of a soluble glass composition comprising at least one soluble component, at least one component having low solubility in an aqueous solution, and at least one lasing dopant which also has a low solubility in the aqueous solution; and immersing the particles in an aqueous solution having low solubility for said at least one component and said at least one lasing dopant, to thereby dissolve substantially all of the soluble portions of the glass particles.

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Номер записи: 20

12-07-2012 дата публикации

Tablet for ion plating, production method therefor and transparent conductive film

Номер: US20120175570A1

Автор: Tokuyuki Nakayama, Yoshiyuki Abe

Принадлежит: SUMITOMO METAL MINING CO LTD

A tablet for ion plating which enables to attain high rate film-formation of a transparent conductive film suitable for a blue LED or a solar cell, and a noduleless film-formation not generating splash, an oxide sintered body most suitable for obtaining the same, and a production method thereof. A tablet for ion plating obtained by processing an oxide sintered body comprising indium and cerium as oxides, and having a cerium content of 0.3 to 9% by atom, as an atomicity ratio of Ce/(In+Ce), characterized in that said oxide sintered body has an In 2 O 3 phase of a bixbyite structure as a main crystal phase, has a CeO 2 phase of a fluorite-type structure finely dispersed as crystal grains having an average particle diameter of equal to or smaller than 3 μm, as a second phase; and the oxide sintered body is produced by mixing raw material powder consisting of indium oxide powder with an average particle diameter of equal to or smaller than 1.5 μm, then molding the mixed powder, and sintering the molding by a normal pressure sintering method, or molding and sintering the mixed powder by a hot press method.

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Номер записи: 21

12-07-2012 дата публикации

Low expansion corrosion resistant ceramic foam filters for molten aluminum filtration

Номер: US20120175804A1

Автор: David P. Haack, Feng Chi, Leonard S. Aubrey

Принадлежит: PORVAIR PLC

A ceramic foam filter for molten aluminum alloys comprising an alumina silicate rich core and a boron glass shell and a chemical composition comprising: 20-70 wt % Al 2 O 3 , 20-60 wt % SiO 2 , 0-10 wt % CaO, 0-10 wt %; MgO and 2-20 wt % B 2 O 3 .

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Номер записи: 22

12-07-2012 дата публикации

High-purity fused and crushed zirconia alloy powder and method of producing same

Номер: US20120177836A1

Автор: Jacobus C. Doesburg, Liangde Xie, Mitchell R. Dorfman

Принадлежит: Sulzer Metco US Inc

The present invention provides a high-purity fused and crushed stabilized zirconia powder. The powder—with or without further processing, such as plasma spheroidization—is used in thermal spray applications of thermal barrier coatings (TBCs) and high-temperature abradables. The resulting coatings have a significantly improved high temperature sintering resistance, which will enhance the durability and thermal insulation effect of the coating.

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Номер записи: 23

26-07-2012 дата публикации

Ti3SiC2 BASED MATERIAL, ELECTRODE, SPARK PLUG AND MANUFACTURING METHOD THEREOF

Номер: US20120186723A1

Автор: Takafumi Kimata, Tetsuya Hattori, Yoshimasa Kobayashi

Принадлежит: NGK Insulators Ltd

The present invention provides a Ti 3 SiC 2 based material that exhibits excellent arc resistance, an electrode, a spark plug, and methods of manufacturing the same. A Ti 3 SiC 2 based material according to the present invention includes Ti 3 SiC 2 as a main phase, the Ti 3 SiC 2 based material having a TiC content of 0.5 mass % or less and an open porosity of 0.5% or less. It may be preferable that 0 to 30 mol % of Si contained in the main phase Ti 3 SiC 2 be substituted with Al. A spark plug according to the present invention includes an electrode formed using the Ti 3 SiC 2 based material.

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Номер записи: 24

16-08-2012 дата публикации

Ceramic membrane having a catalytic membrane-material coating

Номер: US20120204716A1

Автор: Bernd Langanke, Bjoern Hoting, Steffen Schirrmeister

Принадлежит: Borsig Process Heat Exchanger Gmbh, THYSSENKRUPP UHDE GMBH

A porously coated, densely sintered ceramic membrane, which can be produced from a green membrane and subsequent sintering. The membrane is coated with ceramic material, which contains noble metals, which can be produced by application and subsequent thermal treatment. The noble metals are contained at a concentration of 2.5 to 5 mass percent.

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Номер записи: 25

30-08-2012 дата публикации

Silicon carbide powder composition and method of producing silicon carbide molded product using same

Номер: US20120216708A1

Автор: Yoshitaka Aoki

Принадлежит: Shin Etsu Chemical Co Ltd

A silicon carbide powder composition comprising a silicon carbide powder obtained by thermally decomposing a silicone cured product within a non-oxidizing atmosphere and an organic binder. The composition can be sintered to form a silicon carbide molded product having a complex shape even without the inclusion of a sintering assistant.

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Номер записи: 26

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: 27

06-09-2012 дата публикации

Transparent alumina ceramics with oriented grains and preparation method thereof

Номер: US20120223449A1

Автор: Shiwei Wang, Shunzo Shimai, Xiaojian MAO

Принадлежит: Shanghai Institute of Ceramics of CAS

A kind or transparent alumina ceramics is disclosed herein, the optical axes of all or part or the crystal grains of the transparent alumina ceramics are arranged in a direction, which makes the transparent alumina ceramics have orientation.

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Номер записи: 28

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: 29

13-09-2012 дата публикации

Process for production of scandia-stabilized zirconia sheet, scandia-stabilized zirconia sheet obtained by the process, and scandia-stabilized zirconia sintered powder

Номер: US20120231368A1

Автор: Kazuo Hata, Norikazu Aikawa

Принадлежит: NIPPON SHOKUBAI CO LTD

The process for production of a scandia-stabilized zirconia sheet according to the present invention is characterized in comprising the steps of pulverizing a scandia-stabilized zirconia sintered body to obtain a scandia-stabilized zirconia sintered powder having an average particle diameter (De) determined using a transmission electron microscope of more than 0.3 μm and not more than 1.5 μm, and an average particle diameter (Dr) determined by a laser scattering method of more than 0.3 μm and not more than 3.0 μm, and a ratio (Dr/De) of the average particle diameter determined by the laser scattering method to the average particle diameter determined using the transmission electron microscope of not less than 1.0 and not more than 2.5; preparing a slurry containing the scandia-stabilized zirconia sintered powder and a zirconia unsintered powder, wherein a percentage of the scandia-stabilized zirconia sintered powder to a sum of the scandia-stabilized zirconia sintered powder and the zirconia unsintered powder in the slurry is not less than 2 mass % and not more than 40 mass %; forming the slurry into a greensheet; and sintering the greensheet.

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Номер записи: 30

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: 31

04-10-2012 дата публикации

Dielectric ceramic composition and ceramic electronic device

Номер: US20120252657A1

Автор: Fumiaki SATOH, Jun Sato, Masakazu Hosono, Saori Takeda

Принадлежит: TDK Corp

A dielectric ceramic composition comprises barium titanate as a main component, and as subcomponents, 1.00 to 2.50 moles of an oxide of Mg, 0.01 to 0.20 mole of an oxide of Mn and/or Cr, 0.03 to 0.15 mole of an oxide of at least one element selected from a group consisting of V, Mo and W, 0.20 to 1.50 mole of an oxide of R1 where R1 is at least one selected from a group consisting of Y and Ho, 0.20 to 1.50 mole of an oxide of R2 where R2 is at least one selected from a group consisting of Eu, Gd and Tb and 0.30 to 1.50 mole of an oxide of Si and/or B, in terms of each oxide with respect to 100 moles of the barium titanate.

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Номер записи: 32

04-10-2012 дата публикации

Coating compositions

Номер: US20120252950A1

Автор: Aditya J. Deshpande, GANG Shi, Richard J. Phillips, Steven L. Kimbel

Принадлежит: SunEdison Products Singapore Pte Ltd

Silicon nitride coated crucibles for holding melted semiconductor material and for use in preparing multicrystalline silicon ingots by a directional solidification process; methods for coating crucibles; methods for preparing silicon ingots and wafers; compositions for coating crucibles and silicon ingots and wafers with a low oxygen content.

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Номер записи: 33

11-10-2012 дата публикации

Metalorganic chemical vapor deposition (mocvd) process and apparatus to produce multi-layer high-temperature superconducting (hts) coated tape

Номер: US20120258863A1

Автор: Hee-Gyoun Lee, Venkat Selvamanickam

Принадлежит: Superpower Inc

An MOCVD apparatus and process for producing multi-layer HTS-coated tapes with increased current capacity which includes multiple liquid precursor sources, each having an associated pump and vaporizer, the outlets of which feed a multiple compartment showerhead apparatus within an MOCVD reactor. The multiple compartment showerhead apparatus is located in close proximity to an associated substrate heater which together define multiple deposition sectors in a deposition zone.

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Номер записи: 34

08-11-2012 дата публикации

Composite Material of Electroconductor Having Controlled Coefficient of Thermical Expansion

Номер: US20120280184A1

Автор: Adolfo Fernandez Valdes, Maria Amparo Borrell Tomás, Olga Garcia Moreno, Ramon Torrecillas San Millan

Принадлежит: Consejo Superior de Investigaciones Cientificas CSIC

The present invention relates to a composite material comprising a ceramic component, characterized in that it has a negative coefficient of thermal expansion, and carbon nanofilaments, to its obtainment process and to its uses as electrical conductor in microelectronics, precision optics, aeronautics and aerospace.

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Номер записи: 35

08-11-2012 дата публикации

Refractory carbon-bonded magnesia brick and process for producing it

Номер: US20120280413A1

Автор: Helge Jansen

Принадлежит: Refratechnik Holding GmbH

The disclosure relates to a process for producing a refractory, ceramically fired, carbon-bonded magnesia brick whose matrix is more than 70% by weight, in particular from 80 to 98% by weight, of MgO grains and also a carbon framework binder matrix resulting from carbonization, and pores, wherein the MgO grains are fixed by means of carbon bonding of the carbon framework and at least 30%, in particular from 50 to 100%, of the MgO grains have at least one sintering bridge resulting from the ceramic firing.

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Номер записи: 36

15-11-2012 дата публикации

Method for Producing a Refractory Material from Aluminum residues

Номер: US20120289396A1

Автор: Chin-Ching Tzeng, Chun-Yen Yeh, Kin-Seng Sun, Sheng -Fu Yang, To-Mei Wang, Wen-Cheng Lee, Yen-Hua Chang

Принадлежит: Institute of Nuclear Energy Research

Disclosed is a method for making a refractory material from aluminum residues of aluminum recycling. At first, the aluminum residues is mixed with adhesive solution so that the percentage by weight of the adhesive solution is 5 wt % to 10 wt %. The mixture is granulated into grains. The grains are filled in a mold, pressed and then removed from the mold so that the grains are turned into a green body. The green body is heated in a furnace at a range of temperature from 1100° C. to 1400° C. so that the grains are sintered and become a refractory material.

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Номер записи: 37

06-12-2012 дата публикации

MANUFACTURING METHOD FOR LiCoO2, SINTERED BODY AND SPUTTERING TARGET

Номер: US20120305392A1

Автор: Koukou Suu, Poong Kim, Ryouta Uezono, Shouichi Hashiguchi, Takanori Mikashima

Принадлежит: Ulvac Inc

Provided is a method for stably manufacturing high-density sintered LiCoO 2 . Said method uses a CIP-and-sintering method, which has a forming step using cold hydrostatic pressing and a sintering step. The pressing force is at least 1000 kg/cm 2 , the sintering temperature is between 1050° C. and 1120° C., and the sintering time is at least two hours. This makes it possible to stably manufacture sintered LiCoO 2 with a relative density of at least 90%, a resistivity of at most 3 kΩ·cm, and a mean grain diameter between 20 and 50 μm.

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Номер записи: 38

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: 39

03-01-2013 дата публикации

Phosphor and leds containing same

Номер: US20130002129A1

Автор: Nathan Zink, Victor Perez, Yi Zheng

Принадлежит: Osram Sylvania Inc

There is herein described a phosphor for use in white pc-LED applications. The phosphor has a composition represented by (Y 1-x-y Gd x Ce y ) 3 (Al 1-z Sc z ) 5 O 12 wherein 0<x≦0.3, 0<y≦0.04 and 0<z≦0.3. White pc-LEDs containing the phosphor exhibit less sensitivity to variations in the blue emission of LED dies than pc-LEDs containing conventional YAG:Ce and YGdAG:Ce phosphors. The phosphor may used in multiple pc-LED configurations including as a sintered ceramic converter or applied as a powder dispersed in a silicone encapsulant.

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Номер записи: 40

10-01-2013 дата публикации

Polycrystalline compacts having material disposed in interstitial spaces therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts

Номер: US20130008093A1

Автор: Anthony A. DiGiovanni

Принадлежит: Baker Hughes Inc

Polycrystalline compacts include smaller and larger hard grains that are interbonded to form a polycrystalline hard material. The larger grains may be at least about 150 times larger than the smaller grains. An interstitial material comprising one or more of a boride, a carbide, a nitride, a metal carbonate, a metal bicarbonate, and a non-catalytic metal may be disposed between the grains. The compacts may be used as cutting elements for earth-boring tools such as drill bits, and may be disposed on a substrate.

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Номер записи: 41

10-01-2013 дата публикации

Method for manufacturing high-density fiber reinforced ceramic composite materials

Номер: US20130011654A1

Автор: Doo-Won Seo, In-Sub Han, Ji-Haeng Yu, Kang BAI, Sang-Kuk Woo, Se-Young Kim, Sun-Dong Kim

Принадлежит: Korea Institute of Energy Research KIER

Disclosed herein is a method of manufacturing a high-density fiber reinforced ceramic composite material, including the steps of: 1) impregnating a fiber preform material multi-coated with pyrolytic carbon and silicon carbide to form impregnated fiber reinforced plastic composite material; 2)carbonizing the impregnated fiber reinforced plastic composite material to form carbonized fiber composite material; 3) a primary reaction-sintering of the fiber composite material; 4) cooling the primarily reaction-sintered fiber composite material down to room temperature and then impregnating the primarily reaction-sintered fiber composite material with a solution in which a polymer precursor for producing silicon carbide (SiC) is dissolved in a hexane (n-hexane) solvent; and 5) a secondary reaction-sintering of the fiber composite material; and a high-density fiber reinforced ceramic composite material manufactured using the method.

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Номер записи: 42

10-01-2013 дата публикации

Multiple inorganic compound structure and use thereof, and method of producing multiple inorganic compound structure

Номер: US20130011729A1

Автор: Shogo Esaki, Takeshi Yao

Принадлежит: Individual

In a multiple inorganic compound structure according to the present invention, elements included in a main crystalline phase and elements included in a sub inorganic compound are present in at least a first region and a second region, the first region and the second region each have an area of nano square meter order, the first region is adjacent to the second region, and the first region and the second region each include an element of an identical kind, which element of the identical kind present in the first region has a concentration different from that of the element of the identical kind present in the second region.

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Номер записи: 43

24-01-2013 дата публикации

Corrosion-resistant member for semiconductor manufacturing apparatus and method for manufacturing the same

Номер: US20130022526A1

Автор: Morimichi Watanabe, Toru Hayase, Yuji Katsuda

Принадлежит: NGK Insulators Ltd

A mixed powder was prepared by weighing Yb 2 O 3 and SrCO 3 in such a way that the molar ratio became 1:1. The resulting mixed powder was subjected to uniaxial pressure forming, so as to produce a disc-shaped compact. The compact was heat-treated in an air atmosphere, so that a complex oxide was synthesized. The resulting complex oxide was pulverized. After the pulverization, a slurry was taken out and was dried in a nitrogen gas stream, so as to produce a synthesized powder material. The resulting synthesized powder material was subjected to uniaxial pressure forming, so as to produce a disc-shaped compact. The resulting compact was fired by a hot-press method, so as to obtain a corrosion-resistant member for semiconductor manufacturing apparatus. The resulting corrosion-resistant member was made from a SrYb 2 O 4 .

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Номер записи: 44

14-02-2013 дата публикации

Process for preparing high-purity magnesium hydroxide and magnesium oxide

Номер: US20130040799A1

Автор: Anna Katharina DÜRR, Axel Salden, Günther Huber, Jesus Enrique ZERPA UNDA, Katrin Freitag, Marcus Georg Schrems, Michael Karcher

Принадлежит: BASF SE

A process for preparing magnesium compounds by precipitation, in which an aqueous solution or suspension of a magnesium compound is mixed with a precipitant and the corresponding magnesium compound is precipitated wherein the aqueous solution or suspension of a magnesium compound is obtained by reaction of an organomagnesium compound with an aldehyde or a ketone or another electrophile and subsequent aqueous workup of the reaction mixture at a pH of at most 10 or from a magnesium salt with a maximum calcium content and/or potassium content of 200 ppm, based on the magnesium salt used.

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Номер записи: 45

21-02-2013 дата публикации

Ceramic article and method for making same, and electronic device using same

Номер: US20130045359A1

Автор: Po-Feng Ho, ren-bo Wang, Wu-Zheng Ou, Xin-Wu Guan

Принадлежит: Fih Hong Kong Ltd, Shenzhen Futaihong Precision Industry Co Ltd

A display window is formed by mechanically processing a transparent ceramic article. The composition of the ceramic article includes yttrium oxide and thorium oxide, the mole percentage of yttrium oxide is about 85% to about 94.99%, and the mole percentage of thorium oxide is about 4.99% to about 15%. The display window has a high light transmittance, good acid and alkali corrosion resistance, high hardness, long lifetime.

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Номер записи: 46

28-02-2013 дата публикации

Phosphor composite member, led device and method for manufacturing phosphor composite member

Номер: US20130049575A1

Автор: Ryota Suzuki, Shunsuke Fujita, Tadahito Furuyama

Принадлежит: Nippon Electric Glass Co Ltd

Provided is a phosphor composite member having excellent thermal resistance, high color rendition, controllability of various chromaticities from a daylight color to a light bulb color, and high luminescence intensity. A phosphor composite member in which a sintered inorganic powder body layer containing a SnO—P 2 O 5 -based glass and an inorganic phosphor powder is formed on a surface of a ceramic base material, wherein upon irradiation with an excitation light, the ceramic base material and the sintered inorganic powder body layer emit different fluorescences having different wavelengths.

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Номер записи: 47

14-03-2013 дата публикации

Nanostructured dielectric materials for high energy density multilayer ceramic capacitors

Номер: US20130063858A1

Автор: Alan Devoe, Fatih Dogan, Ian Burn

Принадлежит: Alan Devoe, Fatih Dogan, Ian Burn

A multilayer ceramic capacitor, having a plurality of electrode layers and a plurality of substantially titanium dioxide dielectric layers, wherein each respective titanium dioxide dielectric layer is substantially free of porosity, wherein each respective substantially titanium dioxide dielectric layer is positioned between two respective electrode layers, wherein each respective substantially titanium dioxide dielectric layer has an average grain size of between about 200 and about 400 nanometers, wherein each respective substantially titanium dioxide dielectric layer has maximum particle size of less than about 500 nanometers. Typically, each respective substantially titanium dioxide dielectric layer further includes at least one dopant selected from the group including P, V, Nb, Ta, Mo, W, and combinations thereof, and the included dopant is typically present in amounts of less than about 0.01 atomic percent.

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Номер записи: 48

14-03-2013 дата публикации

Oriented Perovskite Oxide Thin Film

Номер: US20130065065A1

Автор: Takaaki Manabe, Tetsuo Tsuchiya, Tomohiko Nakajima

Принадлежит: National Institute of Advanced Industrial Science and Technology AIST

A thin film which comprises an organic metal salt or an an alkoxide salt or an amorphous thin film is formed on a substrate, wherein each of the thin films enables the formation of a Dion-Jacobson perovskite-type metal oxide represented by the composition formula A(B n−1 M n O 3n+1 ) (wherein n is a natural number of 2 or greater; A represents one or more monovalent cations selected from Na, K, Rb and Cs; B comprises one or more components selected from a trivalent rare earth ion, Bi, a divalent alkaline earth metal ion and a monovalent alkali metal ion; and M comprises one or more of Nb and Ta; wherein a solid solution may be formed with Ti and Zr) on a non-oriented substrate. The resulting product is maintained at the temperature between room temperature and 600° C.; and crystallization is achieved while irradiating the amorphous thin film or the thin film comprising the organic metal salt or the alkoxide salt on the substrate with ultraviolet light such as ultraviolet laser. In this manner, it becomes possible to produce an oriented Dion-Jacobson perovskite-type oxide thin film characterized in that thin film can be oriented on the substrate in a (001) direction.

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Номер записи: 49

21-03-2013 дата публикации

Abrasive Grains Based on Zirconia Alumina

Номер: US20130067828A1

Автор: Gebhardt Knuth

Принадлежит: Center for Abrasives and Refractories Research and Development CARRD GmbH

Disclosed herein are abrasive grains based on zirconia alumina melted in an electric arc furnace, comprising a content of 52 to 62 wt % Al 2 0 3 and 35 to 45 wt % ZrO 2 , wherein the high-temperature phases of the zirconia are stabilized by a combination of reduced Ti compounds and yttrium oxide.

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Номер записи: 50

04-04-2013 дата публикации

Solid electrolyte material and lithium battery

Номер: US20130084505A1

Автор: Murugan Ramaswamy, Shota Kumazaki, Yasutoshi Iriyama, Yutaka Hirose

Принадлежит: Toyota Motor Corp

A main object of the present invention is to provide a Li—La—Zr—O-based solid electrolyte material having favorable denseness. The present invention solves the problem by providing a solid electrolyte material including Li, La, Zr, Al, Si and O, having a garnet structure, and being a sintered body.

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Номер записи: 51

11-04-2013 дата публикации

Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust cleaning device

Номер: US20130088120A1

Автор: Jumpei Hayashi, Takanori Matsuda, Takayuki Watanabe

Принадлежит: Canon Inc

A piezoelectric material including a barium bismuth niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are barium, bismuth, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Ba/Nb=a, 0.30≦a≦0.40, and when Bi/Nb=b, 0.012≦b≦0.084. The tungsten content on a metal basis is 0.40 to 3.00 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation.

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Номер записи: 52

11-04-2013 дата публикации

Refractory powder comprising coated mullite grains

Номер: US20130090230A1

Автор: Christian His, Thibault Champion

Принадлежит: Saint Gobain Centre de Recherche et dEtudes Europeen SAS

A powder is disclosed having a coarse fraction representing more than 60% and less than 85% of the powder, as a weight percentage on the basis of the oxides, and that is constituted of particles having a size greater than or equal to 50 μm, referred to as “coarse particles”, the powder comprising at least 5% of coated grains having a size greater than or equal to 50 μm, as a weight percentage on the basis of the oxides of the powder, and a fine fraction, forming the balance to 100% as a weight percentage on the basis of the oxides, constituted of particles having a size of less than 50 μm, referred to as “matrix particles”. The powder can be applied in combustion chambers in which the temperature may reach 1400° C.

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Номер записи: 53

18-04-2013 дата публикации

Oxide ceramics sintered compact and method of manufacturing the same

Номер: US20130095994A1

Автор: Akira Mitsui, Kanji Arai, Koji Kawahara, Tomonori Ogawa

Принадлежит: Asahi Glass Co Ltd

An oxide ceramics sintered compact comprises three kinds of phases of cordierite, mullite, and sapphirine as crystal phases is characterized in that, with a sum of contents of MgO, Al 2 O 3 , and SiO 2 being 100 mass %, it contains MgO of not less than 12 mass % and 14 mass % or less, Al 2 O 3 of not less than 34 mass % and 39 mass % or less, and SiO 2 of not less than 47 mass % and 51 mass % or less, and a content of a substance except MgO, Al 2 O 3 , and SiO 2 is less than 1.5 mass % of the whole sintered compact.

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Номер записи: 54

16-05-2013 дата публикации

Electrostatic chuck

Номер: US20130120896A1

Автор: Hiroshi Ono

Принадлежит: Kyocera Corp

There is provided an electrostatic chuck an electrostatic chuck in which it is hard for the power of suppressing residual adsorption to deteriorate over time. There is provided an electrostatic chuck including an insulating substrate, and an adsorption electrode, wherein a region which includes at least an upper face of the insulating substrate containing Mn is made of ceramics containing a first transition element composed of at least one of Fe and Cr, and a ratio C2/C1 of a content C2 (mol) of the first transition element to a content C1 (mol) of Mn contained in the insulating substrate is 1 or more.

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Номер записи: 55

23-05-2013 дата публикации

Fluorescent member and light emitting module

Номер: US20130127331A1

Автор: Masanobu Mizuno, Takashi Onishi, Yasuaki Tsutsumi

Принадлежит: Koito Manufacturing Co Ltd

In a plate-shaped fluorescent member configured to convert the wavelength of the light emitted by a semiconductor light emitting element, the fluorescent member is formed of an inorganic material having a refractive index of 1.5 or more and a light transmittance at the emission peak wavelength of the semiconductor light emitting element of less than 20%. A concave portion is formed, of the surfaces of the fluorescent member, on the surface on the side where the light in the semiconductor light emitting element is mainly emitted. In the fluorescent member, the light transmittance of the light having a wavelength of 380 nm to 500 nm may be less than 20%. The concave portion may be a groove. The concave portion may be a plurality of holes that are scattered.

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Номер записи: 56

06-06-2013 дата публикации

Semiconductive ceramic sintered compact

Номер: US20130140679A1

Автор: Atsushi Teramoto, Shogo Shimada, Yasutaka Ushijima

Принадлежит: TOTO LTD

There is provided a semiconductive ceramic sintered compact that has a conductivity high enough to attain static electricity removal and antistatic purposes and, at the same time, has excellent mechanical properties or stability over time. The semiconductive ceramic sintered compact includes a main phase and a conductive phase present between the main phases, wherein the main phase is a ceramic sintered phase including Al 2 O 3 particles, the area ratio of the conductive phase to the main phase is 0% (exclusive) to 10% (inclusive), and the conductive phase includes two or more metals selected from Mn (manganese), Fe (iron), and Ti (titanium) and has a composition meeting a relation of Mn/(Ti+Mn+Fe)>0.08 or Mn/Ti>0.15.

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Номер записи: 57

04-07-2013 дата публикации

Boron-silicon-carbon ceramic materials and method of making

Номер: US20130168905A1

Автор: Frank E. Anderson, Kevin R. McNerney, Steven M. Brazil

Принадлежит: Coorstek Inc

A reaction bonded ceramic body that has 50% to 60%, by weight, boron carbide, and 20% to 30%, by weight, silicon carbide. The reaction bonded ceramic body has least a portion of the boron carbide reacted with silicon to become siliconized boron carbide. Also, a method of making a reaction bonded ceramic material. The method may include the steps of forming a green body from a mixture of boron carbide, carbon, and an organic binder, and contacting the green body with a liquid infiltrant comprising silicon. The infiltrant has a temperature of about 1625° C. to about 1700° C. Furthermore, a method of making a reaction bonded boron carbide ceramic body. The method includes the steps of forming a green body from a mixture of boron carbide, carbon, and an organic binder. The weight ratio of boron carbide to carbon in the green body may be about 5:5 to 1 or more. The method also includes siliconizing a first portion of the boron carbide to siliconized boron carbide by contacting the green body with a molten silicon infiltrant, where the infiltrant has a temperature of about 1625° C. to about 1700° C. The method may further include dissolving a second portion of the boron carbide in the silicon infiltrant, where at least some of the dissolved boron carbide is reprecipated as smooth particulates.

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Номер записи: 58

08-08-2013 дата публикации

Vacuum insulation material and method for producing same

Номер: US20130202839A1

Автор: Hiroshi Deno

Принадлежит: Fuji Electric Co Ltd

A vacuum insulation material has excellent thermal insulation even in a high-temperature environment over a long period of time. A core starting material composition is molded into a predetermined shape, the core starting material composition containing a talc-based clay mineral, a potassium compound selected from potassium carbonate and potassium bicarbonate, and water, and the resultant core starting material composition is fired at a temperature lower than a melting point of the talc-based clay mineral, to produce a core material formed of a porous fired body in which a layered structure of the talc-based clay mineral is cleaved and at least a portion of the cleaved structure is partially bonded. This core material is then vacuum packaged in a gas-barrier packaging, to produce the vacuum insulation material.

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Номер записи: 59

22-08-2013 дата публикации

Sintered body, sputtering target and molding die, and process for producing sintered body employing the same

Номер: US20130213801A1

Автор: Hitoshi Nagayama, Kenichi Itoh, Masami Mesuda, Shunsuke Yatsunami, Tetsuo Shibutami

Принадлежит: Individual

Provided is an apparatus that includes a molding die for producing a sintered body. The molding die is configured for cold isostatic pressing and includes a knockdown mold frame comprised of plural frame members and a bottom plate provided in contact with the knockdown mold frame. An upper punch is provided to be movable along the inner surface of the knockdown mold frame. The frame members configured to be movable relative to each other to accommodate an expansion of a green body which takes place at the time of reducing the pressure after the completion of pressing.

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Номер записи: 60

22-08-2013 дата публикации

Silicon carbide ceramic and honeycomb structure

Номер: US20130216768A1

Автор: Atsushi Kaneda, Takayuki Inoue, Tsuyoshi Watanabe

Принадлежит: NGK Insulators Ltd

Provided is a silicon carbide ceramic having a small amount of resistivity change due to temperature change and being capable of generating heat by current application; and containing silicon carbide crystals having 0.1 to 25 mass % of 4H—SiC silicon carbide crystals and 50 to 99.9 mass % of 6H—SiC silicon carbide crystals, preferably having a nitrogen content of 0.01 mass % or less, more preferably containing two or more kinds of silicon carbide particles containing silicon carbide crystals and silicon for binding these silicon carbide particles to each other and having a silicon content of from 10 to 40 mass %.

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Номер записи: 61

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: 62

12-09-2013 дата публикации

Methods of Synthesizing Thermoelectric Materials

Номер: US20130234375A1

Автор: Bo Yu, Gang Chen, Hengzhi Wang, HUI Wang, Shuo Chen, Wei-Shu Liu, Zhifeng Ren

Принадлежит: Bo Yu, Gang Chen, Hengzhi Wang, HUI Wang, Shuo Chen, Wei-Shu Liu, Zhifeng Ren

Methods for synthesis of thermoelectric materials are disclosed. In some embodiments, a method of fabricating a thermoelectric material includes generating a plurality of nanoparticles from a starting material comprising one or more chalcogens and one or more transition metals; and consolidating the nanoparticles under elevated pressure and temperature, wherein the nanoparticles are heated and cooled at a controlled rate.

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Номер записи: 63

12-09-2013 дата публикации

Sintered body and cutting tool

Номер: US20130236259A1

Автор: Hironobu Kusanagi, Jun Moteki, Kuniharu Tanaka, Takeshi Mitsuoka, Yoshihiro Kuroki, Yusuke KATSU

Принадлежит: NGK Spark Plug Co Ltd

A sintered body containing alumina crystal particles and zirconia crystal particles as main components includes the tetragonal crystal particles as the zirconia crystal particles. The zirconia crystal particles satisfy relations 0%≦A≦3%, 3%≦B≦22% and 77%≦C≦96%, where A, B and C are as defined herein.

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Номер записи: 64

12-09-2013 дата публикации

Method For The Production Of Stable Binder-Free High-Purity Moldings Composed Of Metal Oxides and Their Use

Номер: US20130237413A1

Автор: Holger Szillat

Принадлежит: Wacker Chemie AG

Stable high strength porous metal oxide articles suitable, for example, for use as catalyst supports, are prepared by predisposing fine metal oxide particles in water followed by fine dispersion under high shear, and subjecting the dispersion to a change in pH to coagulate the metal oxide particles and form a moldable viscoelastic composition. The moldings are substantially free of impurity atoms.

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Номер записи: 65

03-10-2013 дата публикации

Ceramic powder and multi-layer ceramic capacitor

Номер: US20130258547A1

Автор: Youichi Mizuno

Принадлежит: TAIYO YUDEN CO LTD

A ceramic powder that contains, as a main composition, barium titanate powder having a perovskite structure with an average particle size (median size) of 200 nm or smaller as measured by SEM observation, wherein the barium titanate powder is such that the percentage of barium titanate particles having twin defects in the barium titanate powder is 13% or more as measured by TEM observation and that its crystal lattice c/a is 1.0080 or more. The ceramic powder has a wide range of optimum sintering temperatures and thus offers excellent productivity and is particularly useful in the formation of thin dielectric layers of 1 μm or less.

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Номер записи: 66

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: 67

24-10-2013 дата публикации

Sputtering target and manufacturing method thereof, and transistor

Номер: US20130277895A1

Автор: Keiji Sato, Shunpei Yamazaki, Toru Takayama

Принадлежит: Semiconductor Energy Laboratory Co Ltd

One object is to provide a deposition technique for forming an oxide semiconductor film. By forming an oxide semiconductor film using a sputtering target including a sintered body of a metal oxide whose concentration of hydrogen contained is low, for example, lower than 1×10 16 atoms/cm 3 , the oxide semiconductor film contains a small amount of impurities such as a compound containing hydrogen typified by H 2 O or a hydrogen atom. In addition, this oxide semiconductor film is used as an active layer of a transistor.

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Номер записи: 68

31-10-2013 дата публикации

Graphite foil-bonded device and method for preparing same

Номер: US20130284737A1

Автор: Chien-Ping Ju, Hsun-Yu Lin, Jiin-Huey Chern-Lin, Kuo-Jung Lee

Принадлежит: National Cheng Kung University NCKU

A device has a layered structure, and the layered structure has a graphite foil bonded to a surface of a substrate, wherein the graphite foil contains a laminate of a plurality of natural graphite flakes parallel to the surface of the substrate, wherein the graphite foil and the surface of the substrate are bonded through diffusion bonding directly, or bonded with a cured resin, a cured pitch, a carbonized resin, a carbonized pitch, a graphitized resin or a graphitized pitch in between, wherein the graphite foil contains not less than 95%, preferably 99%, of carbon.

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Номер записи: 69

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: 70

21-11-2013 дата публикации

Alumina sintered body, abrasive grains, and grindstone

Номер: US20130305616A1

Автор: Hirokazu Miyazawa, Shinichiro Tomikawa, Takeshi Iemura

Принадлежит: Showa Denko KK

Provided are an alumina sintered compact containing a titanium compound and an iron compound, wherein FeTiAlO 5 grains exist in the grain boundary of the alumina grains and the mean grain size of the FeTiAlO 5 grains is from 3.4 to 7.0 μm; and an abrasive grain and a grain stone using the alumina sintered compact.

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Номер записи: 71

21-11-2013 дата публикации

Solid oxide fuel cell

Номер: US20130309583A1

Автор: Akira Ueno, Kenichi Hiwatashi, Megumi Shimazu, Motoyasu Miyao, Toshiya Abe

Принадлежит: TOTO LTD

Provided is a solid oxide fuel cell having a service life of approximately 90,000 hours, a level required to encourage the widespread use of SOFC. The solid oxide fuel cell according to the present invention comprises a solid electrolyte layer, an oxygen electrode layer provide to one side of the solid electrolyte layer, and a fuel electrode layer provide to the other side of the solid electrolyte layer. The oxygen electrode layer is made from a material including iron or manganese, the solid electrolyte layer is made from a scandia-stabilized zirconia electrolyte material containing alumina, and the solid electrolyte layer has a lanthanoid oxide and/or yttria dissolved therein.

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Номер записи: 72

28-11-2013 дата публикации

Alumina sintered body, abrasive grains, and grindstone

Номер: US20130312336A1

Автор: Hirokazu Miyazawa, Shinichiro Tomikawa, Takeshi Iemura

Принадлежит: Showa Denko KK

Provided are an alumina sintered compact containing a titanium compound and an iron compound, wherein the total amount of the TiO 2 -equivalent content of the titanium compound, the Fe 2 O 3 -equivalent content of the iron compound and the alumina content is at least 98% by mass, the total amount of the TiO 2 -equivalent content of the titanium compound and the Fe 2 O 3 -equivalent content of the iron compound is from 5 to 13% by mass, and the ratio by mass of the TiO 2 -equivalent content of the titanium compound to the Fe 2 O 3 -equivalent content of the iron compound (TiO 2 /Fe 2 O 3 ) is from 0.85/1.15 to 1.15/0.85; and an abrasive grain and a grain stone using the alumina sintered compact.

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Номер записи: 73

28-11-2013 дата публикации

Piezoelectric porcelain composition

Номер: US20130313467A1

Автор: Yutaka Doshida

Принадлежит: TAIYO YUDEN CO LTD

Provided is a Sr 2-x Ca x NaNb 5 O 15 type piezoelectric ceramic composition wherein the inhibition of cracking and an improvement in the piezoelectric characteristics are attained by improving the composition uniformity and the microstructure uniformity. In the basic Sr 2-x Ca x NaNb 5 O 15 composition, the (Sr, Ca)/Na ratio is changed, whereby the occupancies of Sr, Ca and Na in lattices which constitute the tungsten-bronze type structure and into which Sr, Ca, and Na can enter are reduced to facilitate the entrance of Sr into the lattices and thus inhibit the formation of a secondary phase. Further, a predetermined amount of Al and/or Si is added to lower the sintering temperature and to make the microstructure uniform. Additionally, a predetermined amount of Mn is added to make the polarization easy.

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Номер записи: 74

05-12-2013 дата публикации

Translucent polycrystalline material and manufacturing method thereof

Номер: US20130320277A1

Автор: Jun Akiyama, Shigeo Asai, Takunori Taira

Принадлежит: Genesis Research Institute Inc, Inter University Research Institute Corp National Institute of Natural Sciences, Toyota Motor Corp

Provided is a method for manufacturing a translucent polycrystalline material with optical properties continuously varying in the material. A slurry including single crystal grains that are acted upon by a force when placed in a magnetic field is immobilized in a gradient magnetic field with a spatially varying magnetic flux density and then sintered. For example, where a slurry including single crystal grains of YAG doped with Er and single crystal grains of YAG undoped with a rare earth material is immobilized in the gradient magnetic field, the region with a strong magnetic field becomes a laser oscillation region that is rich in Er-doped YAG, whereas the region with a weak magnetic field becomes a translucent region rich in YAG undoped with a rare earth material. A polycrystalline material having a core with laser oscillations and a guide surrounding the core are obtained at once.

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Номер записи: 75

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: 76

19-12-2013 дата публикации

Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device

Номер: US20130335488A1

Автор: Nobuhiro Kumada, Shunsuke Murakami, Takayuki Watanabe

Принадлежит: Canon Inc, University of Yamanashi NUC

Provided is a piezoelectric material which has satisfactory insulation property and piezoelectric property and which does not contain lead and potassium. The piezoelectric material includes a perovskite-type metal oxide that is represented by the following general formula (1): (Na x Ba 1-y )(Nb y Ti 1-y )O 3 General formula (1) where relationships of 0.80≦x≦0.95 and 0.85≦y≦0.95 are satisfied, and y×0.05 mol % or more to y×2 mol % or less of copper with respect to 1 mol of the perovskite-type metal oxide.

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Номер записи: 77

19-12-2013 дата публикации

Substrate for power module, substrate with heat sink for power module, power module, method for producing substrate for power module, and method for producing substrate with heat sink for power module

Номер: US20130335921A1

Автор: Hiroshi Tonomura, Kazuhiro Akiyama, Nobuyuki Terasaki, Yoshirou Kuromitsu, Yoshiyuki Nagatomo

Принадлежит: Mitsubishi Materials Corp

Provided is a power module substrate including a ceramic substrate, and a metal plate which contains aluminum or an aluminum alloy, and which is stacked and bonded on a surface of the ceramic substrate, wherein one or more additional elements selected from Ag, Zn, Ge, Mg, Ca, Ga, and Li are solid-solubilized in the metal plate, and the Ag concentration in the metal plate in the vicinity of the interface with the ceramic substrate is greater than or equal to 0.05% by mass and less than or equal to 10% by mass, or the total concentration of Zn, Ge, Mg, Ca, Ga, and Li in the metal plate in the vicinity of the interface with the ceramic substrate is greater than or equal to 0.01% by mass and less than or equal to 5% by mass.

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Номер записи: 78

19-12-2013 дата публикации

High density polycrystalline superhard material

Номер: US20130337248A1

Автор: Mehmet Serdar Ozbayraktar

Принадлежит: Element Six Abrasives SA

A polycrystalline superhard material comprises a mass of diamond, graphite or cubic boron nitride particles or grains bonded together by ultrathin inter-granular bonding layers, the inter-granular bonding layers having an average thickness of greater than about 0.3 nm and less than about 100 nm. There is also disclosed a method for making such a polycrystalline superhard material.

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Номер записи: 79

19-12-2013 дата публикации

Fuel cell components having porous electrodes

Номер: US20130337360A1

Автор: F. Michael Mahoney, John D. Pietras

Принадлежит: Individual

An SOFC component includes a first electrode, an electrolyte overlying the first electrode, and a second electrode overlying the electrolyte. The second electrode includes a bulk layer portion and a functional layer portion, the functional layer portion being an interfacial layer extending between the electrolyte and the bulk layer portion of the second electrode, wherein the bulk layer portion has a bimodal pore size distribution.

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Номер записи: 80

26-12-2013 дата публикации

Highly efficient method for producing ceramic microparticles

Номер: US20130343979A1

Автор: Daisuke Honda, Jun Kuraki, Masakazu Enomura, Masaki Maekawa

Принадлежит: M Technique Co Ltd

Provided is a more suitable method for producing ceramic microparticles. The present invention uses at least two types of fluids to be processed; at least one of the fluids to be processed is a fluid containing a ceramic starting material liquid that mixes and/or dissolves a ceramic starting material in a basic solvent; of the fluids aside from the ceramic starting material liquid, at least one of the fluids to be processed is a fluid containing a solvent for precipitating ceramic microparticles; and ceramic microparticles are precipitated by mixing the fluid containing the ceramic starting material liquid and the fluid containing the solvent for precipitating ceramic microparticles within a thin film fluid formed between at least two surfaces ( 1,2 ) for processing that are provided facing each other, are able to approach and separate each other, and of which one is able to rotate with respect to the other. Ceramic microparticles having as increased crystallinity are obtained by mixing the fluid containing the precipitated ceramic microparticles precipitate and a fluid containing an acidic substance.

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Номер записи: 81

09-01-2014 дата публикации

Cubic boron nitride crystal, bodies comprising same and tools comprising same

Номер: US20140007520A1

Автор: Karolina HANNERSJÖ

Принадлежит: Element Six Ltd

A cubic boron nitride (cBN) crystal or plurality of crystals containing a chloride salt compound including an alkali metal or an alkali earth metal. For example, the chloride salt compound may be selected from potassium chloride, magnesium chloride, lithium chloride, calcium chloride or sodium chloride. The crystal or crystals may have a relatively rough surface texture.

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Номер записи: 82

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: 83

20-02-2014 дата публикации

Superhard carbon nitride and method for producing the same

Номер: US20140050650A1

Автор: Akitaka SAWAMURA

Принадлежит: Sumitomo Electric Industries Ltd

C 3 N 4 of the present invention has a Mn 3 O 4 type crystal structure to thereby have a bulk modulus higher than that of diamond.

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Номер записи: 84

27-02-2014 дата публикации

Zirconia-based material doped with yttrium and lanthanum

Номер: US20140057774A1

Автор: Brant U. Kolb, Holger Hauptmann, James P. Mathers, Kathleen M. Humpal, Mark J. Hendrickson, Myles L. Brostrom

Принадлежит: 3M Innovative Properties Co

Sintered bodies containing zirconia-based ceramic materials and partially sintered bodies that are intermediates in the preparation of the sintered bodies are described. The zirconia-based ceramic material is doped with lanthanum and yttrium. The grain size of the zirconia-based ceramic material can be controlled by the addition of lanthanum. The crystalline phase of the zirconia-based ceramic material can be influenced by the addition of yttrium.

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Номер записи: 85

06-03-2014 дата публикации

Coatings for dissipating vibration-induced stresses in components and components provided therewith

Номер: US20140065433A1

Автор: John McConnell Delvaux, Yuk-Chiu Lau

Принадлежит: General Electric Co

A coating material suitable for use in high temperature environments and capable of providing a damping effect to a component subjected to vibration-induced stresses. The coating material defines a damping coating layer of a coating system that lies on and contacts a substrate of a component and defines an outermost surface of the component. The coating system includes at least a second coating layer contacted by the damping coating layer. The damping coating layer contains a ferroelastic ceramic composition having a tetragonality ratio, c/a, of greater than 1 to 1.02, where “c” is a c axis of a unit cell of the ferroelastic ceramic composition and “a” is either of two orthogonal axes, a and b, of the ferroelastic ceramic composition.

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Номер записи: 86

13-03-2014 дата публикации

Porous, silicate, ceramic body, dental restoration and method for the production thereof

Номер: US20140070435A1

Автор: Birgit Huber, Enno Bojemueller, Joachim Bibus, Michael Dorn, Michael Tholey, Norbert Thiel, Vilma Geske

Принадлежит: Vita Zahnfabrik H Rauter GmbH and Co KG

The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.

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Номер записи: 87

13-03-2014 дата публикации

Compositions and methods for converting hazardous waste glass into non-hazardous products

Номер: US20140073830A1

Автор: Biprodas Dutta, Hao Gan, Ian L. Pegg, Malabika Chaudhuri

Принадлежит: Catholic University of America

The present invention provides compositions and methods for converting hazardous waste glass into safe and usable material. In particular, the present invention provides compositions and methods for producing ceramic products from toxic-metal-containing waste glass, thereby safely encapsulating the metals and other hazardous components within the ceramic products.

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Номер записи: 88

27-03-2014 дата публикации

Joint of metal material and ceramic-carbon composite material, method for producing same, carbon material joint, jointing material for carbon material joint, and method for producing carbon material joint

Номер: US20140086670A1

Автор: Tetsuro Tojo, Tomoyuki Ohkuni, Weiwu Chen, Yoshinari Miyamoto

Принадлежит: Toyo Tanso Co Ltd

Provided are a joint of a metal material and a ceramic-carbon composite material which can be used at high temperatures, a method for producing the same, a novel carbon material joint, a jointing material for a carbon material joint, and a method for producing a carbon joint. A joint 6 of a metal material 4 and a ceramic-carbon composite material 1 is a joint of a metal material 4 made of metal and a ceramic-carbon composite material 1. The ceramic-carbon composite material 1 includes a plurality of carbon particles 2 and a ceramic portion 3 made of ceramic. The ceramic portion 3 is formed among the plurality of carbon particles 2. The metal material 4 and the ceramic-carbon composite material 1 are joined through a joining layer 5. The joining layer 5 contains a carbide of the metal and the ceramic.

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Номер записи: 89

03-04-2014 дата публикации

Method for producing silicon carbide-carbon composite

Номер: US20140094355A1

Автор: Tetsuro Tojo, Weiwu Chen, Yoshinari Miyamoto

Принадлежит: Toyo Tanso Co Ltd

Provided is a novel method for producing a silicon carbide-carbon composite. A green body containing a carbonaceous material 2 having silicon nitride attached to a surface thereof is fired to obtain a silicon carbide-carbon composite 1.

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Номер записи: 90

06-01-2022 дата публикации

PROCESS FOR OBTAINING COMPOSITE, ULTRA-REFRACTORY, FIBRE-REINFORCED CERAMIC MATERIALS

Номер: US20220002208A1

Автор: Sciti Diletta, Silvestroni Laura, Vinci Antonio, Zoli Luca

Принадлежит: CONSIGLIO NAZIONALE DELLE RICERCHE

The present invention relates to a process for preparing a composite, ultra-refractory, fibre-reinforced ceramic material obtained through the infiltration of carbon and/or silicon carbide fibres with a ceramic suspension comprising yttrium, lanthanum and/or scandium compounds, and the subsequent densification of the composite. The fibre-reinforced UHTC compounds obtained by the process can be used for making items intended for use in extreme temperature and pressure conditions. 1. A process for preparing a composite , ultra-refractory , fibre-reinforced ceramic material comprising:(i) infiltrating a plurality of fibres selected from carbon fibres, silicon carbide fibres and combinations thereof, with a ceramic suspension, thereby obtaining an infiltrated composite material, and drying the infiltrated composite material, wherein the ceramic suspension comprises:(A) a mixture of solid ceramic phases comprising:{'sub': 2', '2', '2', '2', '2, '(a) an amount greater than or equal to 55 vol. % of an ultra-refractory ceramic component selected from the group consisting of ZrB, HfB, TaB, TiB, NbB, ZrC, HfC, TiC, NbC, TaC and mixtures thereof;'}(b) 0-30 vol. % of SiC;(c) 0.1-15 vol. % of at least one compound selected from the group consisting of scandium, yttrium, lanthanum compounds and mixtures thereof; and(B) a dispersant selected from the group consisting of water, organic solvents, liquid organic precursors of SiC, liquid organic precursors of carbon and mixtures thereof;(ii) consolidating the dried composite material at a temperature comprised in the range 1700°-2000° C.2. The process according to claim 1 , wherein the fibres are carbon fibres.3. The process according to claim 1 , wherein the ceramic suspension comprises:(A) a mixture of solid ceramic phases comprising:{'sub': 2', '2', '2', '2', '2, '(a) 55-96 vol. %, of an ultra-refractory ceramic component selected from the group consisting of ZrB, HfB, TaB, TiB, NbB, ZrC, HfC, TiC, NbC, TaC and mixtures thereof ...

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Номер записи: 91

07-01-2016 дата публикации

Functional film

Номер: US20160000978A1

Автор: Tsukasa KISHIUME, Yusuke Taki

Принадлежит: Nikon Corp

A functional film that is applied to a surface of a medical apparatus or a biomaterial includes a film of Ti-doped tetrahedral amorphous carbon (ta-C:Ti film).

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Номер записи: 92

04-01-2018 дата публикации

Composite polycrystal

Номер: US20180001391A1

Автор: Hitoshi Sumiya, Takeshi Sato

Принадлежит: Sumitomo Electric Industries Ltd

A composite polycrystal contains polycrystalline diamond formed of diamond grains that are directly bonded mutually, and compressed graphite dispersed in the polycrystalline diamond.

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Номер записи: 93

07-01-2021 дата публикации

REFRACTORY COMPOSITIONS AND IN SITU ANTI-OXIDATION BARRIER LAYERS

Номер: US20210002176A1

Автор: Maddalena Roger L, Mohanty Beda, Schaner Daniel T

Принадлежит: VESUVIUS USA CORPORATION

A refractory composition for forming a working lining in a metallurgical vessel contains a coarse-grain refractory particle fraction and a fine-grain refractory particle fraction, or at least 0.25% additive calcium oxide, or at least 0.25% titanium dioxide. The coarse-grain refractory particles can include alumina particles, magnesia particles, magnesium aluminate spinel particles, zirconia particles, or doloma particles, or a combination of any of these particles. The fine-grain refractory particles can be comprised of any low-magnesia refractory oxide. The refractory composition can be applied to a metallurgical vessel by spraying, gunning, shotcreting, vibrating, casting, troweling, or positioning preformed refractory shapes, or a combination of any of these techniques. When contacted by molten metal, the molten metal penetrates into the refractory material, wetting the coarse-grain refractory particles, and forming a refractory-metal composite barrier layer that decreases or blocks oxygen transport through the refractory lining. 123-. (canceled)25. The refractory composition of claim 24 , comprising claim 24 , in percent by total mass of the refractory composition:at least 50.0% coarse-grain refractory particles; andat least 25.0% low-magnesia oxide, fine-grain refractory particles.26. The refractory composition of claim 24 , wherein the coarse-grain refractory particles are essentially free of silica.27. The refractory composition of claim 24 , wherein the composition is essentially free of iron oxide.28. The refractory composition of claim 24 , wherein the coarse-grain refractory particles are essentially free of calcium oxide claim 24 , olivine claim 24 , and silica.29. The refractory composition of claim 24 , wherein the coarse-grain refractory particles comprise alumina particles having a particle size of at least 300 micrometers (+48 mesh).30. The refractory composition of claim 24 , comprising claim 24 , in percent by total mass of the refractory ...

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Номер записи: 94

07-01-2021 дата публикации

COPPER-CERAMIC SUBSTRATE

Номер: US20210002179A1

Автор: CAPPI BENJAMIN, LEHMANN HELGE, ZEIGER KARL

Принадлежит:

The invention relates to a copper-ceramic substrate comprising: 117-. (canceled)18. A copper-ceramic substrate , comprising:a ceramic carrier, anda copper layer bonded to a surface of the ceramic carrier, wherein the copper layer has a free surface for forming a conductor structure and/or for securing bonding wires,wherein the copper layer has a microstructure with an average grain size diameter of 200 to 500 μm.19. The copper-ceramic substrate according to claim 18 ,wherein the copper layer has an electrical conductivity of at least 50 MS/m.20. The copper-ceramic substrate according to claim 18 ,wherein the copper layer has a Vickers hardness of 40 to 100.21. The copper-ceramic substrate according to claim 18 ,wherein the copper layer has a proportion of at least 99.95% Cu.22. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of at most 25 ppm Ag.23. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of at most 10 ppm of O.24. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Cd, Ce, Ge, V, Zn of, in each case, at most 0-1 ppm.25. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Cd, Ce, Ge, V, Zn of a total of at least 0.5 ppm and at most 5 ppm.26. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Bi, Se, Sn, Te of, in each case, at most 0-2 ppm.27. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Bi, Se, Sn, Te of a total of at least 1.0 ppm and at most 8 ppm.28. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Al, Sb, Ti, Zr of, in each case, at most 0-3 ppm.29. The copper-ceramic substrate according to claim 21 ,wherein the copper layer has a proportion of the elements Al, Sb, Ti ...

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Номер записи: 95

07-01-2016 дата публикации

DIELECTRIC CERAMIC COMPOSITION AND COMPOSITE CERAMIC STRUCTURE

Номер: US20160002113A1

Автор: Goto Masashi, Kobayashi Yoshimasa

Принадлежит:

Barium titanate (BaTiO) and barium zirconate (BaZrO) are made into a solid solution at a predetermined ratio. Specifically, a dielectric ceramic composition is represented by a basic composition (BaTiO)(BaZrO)(in the formula, X satisfies 0.70≦X≦0.95). More preferably, X satisfies 0.73≦X≦0.90 in this range. Such a dielectric ceramic composition may be integrated with alumina to form a composite ceramic structure. 1. A dielectric ceramic composition represented by a basic composition (BaTiO)(BaZrO)(in the formula , X satisfies 0.70≦X≦0.95).2. The dielectric ceramic composition according to claim 1 , being a solid solution of BaTiOand BaZrO.3. The dielectric ceramic composition according to claim 1 , wherein the X satisfies 0.73≦X≦0.90.4. The dielectric ceramic composition according to claim 1 , having an average crystal grain size of 3 μm or less.5. The dielectric ceramic composition according to claim 1 , having a relative density of 97% or more.6. The dielectric ceramic composition according to claim 1 , having a withstand voltage of 30 kV/mm or more.7. The dielectric ceramic composition according to claim 1 , having a relative dielectric constant of 43 or more and 170 or less.8. The dielectric ceramic composition according to claim 1 , having a thermal expansion coefficient of 7.8 ppm/K or more and 9.1 ppm/K or less.9. A composite ceramic structure wherein the dielectric ceramic composition according to and alumina are integrated. 1. Field of the InventionThe present invention relates to a dielectric ceramic composition and a composite ceramic structure.2. Description of the Related ArtDevices by utilizing creeping discharge, e.g., a creeping discharge ozonizer, have been known previously. For example, Patent Literature 1 discloses a creeping discharge element in which a linear discharge electrode is disposed on an inside surface of alumina ceramics (insulator) formed into a cylindrical shape and a sheet-shaped induction electrode is disposed in the inside or on an ...

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Номер записи: 96

07-01-2016 дата публикации

Dielectric ceramic composition and composite ceramic structure

Номер: US20160002114A1

Автор: Masashi Goto, Yoshimasa Kobayashi

Принадлежит: NGK Insulators Ltd

Strontium titanate (SrTiO 3 ) and barium zirconate (BaZrO 3 ) are made into a solid solution at a predetermined ratio. Specifically, a dielectric ceramic composition is represented by a basic composition (SrTiO 3 ) (1-x) (BaZrO 3 ) x (in the formula, X satisfies 0.63≦X≦0.95). More preferably, X satisfies 0.67≦X≦0.90 in this range. Such a dielectric ceramic composition may be integrated with alumina to form a composite ceramic structure.

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Номер записи: 97

07-01-2016 дата публикации

FLUORIDE SINTERED BODY FOR NEUTRON MODERATOR AND METHOD FOR PRODUCING THE SAME

Номер: US20160002116A1

Автор: Ikeda Takeshi, KUMADA Hiroaki, NAKAMURA Tetsuyuki, SHIGEOKA Takuji

Принадлежит:

A fluoride sintered body suitable for a moderator which moderates high-energy neutrons so as to generate neutrons for medical care with which an affected part of the deep part of the body is irradiated to make a tumor extinct comprises MgFof a compact polycrystalline structure having a bulk density of 2.90 g/cmor more and as regards mechanical strengths, a bending strength of 10 MPa or more and a Vickers hardness of 71 or more. 1. A fluoride sintered body for a neutron moderator , comprising MgFof a compact polycrystalline structure having a bulk density of 2.90 g/cmor more.2. The fluoride sintered body for a neutron moderator according to claim 1 , having a bending strength of 10 MPa or more and a Vickers hardness of 71 or more as regards mechanical strengths.3. A method for producing a fluoride sintered body for a neutron moderator claim 1 , the fluoride sintered body comprising a MgFsintered body according to claim 1 , comprising the steps of:{'sub': '2', 'pulverizing a high-purity MgFraw material and mixing the same with 0.1-1% by weight of a sintering aid added;'}molding the same at a molding pressure of 5 MPa or more using a uniaxial press device;molding the same at a molding pressure of 5 MPa or more using a cold isostatic pressing (CIP) device;conducting preliminary sintering in the temperature range of 550° C.-600° C. for 4-10 hours in an air atmosphere:heating in the temperature range of 750° C.-840° C. for 5-12 hours in an inert gas atmosphere; and{'sub': '2', 'conducting main sintering by heating in the temperature range of 900° C.-1100° C. for 0.5-3 hours in the same atmosphere as the preceding step so as to form a MgFsintered body having a compact structure.'}4. The method for producing a fluoride sintered body for a neutron moderator according to claim 3 ,wherein the inert gas atmosphere in the main sintering step comprises one kind of gas or a mixture of plural kinds of gases, selected from among nitrogen, helium, argon and neon. The present ...

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Номер записи: 98

05-01-2017 дата публикации

Composite Ceramics and Ceramic Particles and Method for Producing Ceramic Particles and Bulk Ceramic Particles

Номер: US20170001915A1

Автор: Arnold Hill, William Easter

Принадлежит: Dynamic Material Systems LLC

Methods for producing Polymer Derived Ceramic (PDCs) particles and bulk ceramic components and compositions from partially cured gelatinous polymer ceramic precursors and unique bulk composite PDC ceramics and unique PDC ceramic particles in size and composition. Methods of making fully dense PDCs over approximately 2 μm to approximately 300 mm in diameter for applications such as but not limited to proppants, hybrid ball bearings, catalysts, and the like. Methods can include emulsion processes or spray processes to produce PDCs. The ceramic particles and compositions can be shaped and chemically and materially augmented with enhancement particles in the liquid resin or gelatinous polymeric state before being pyrolyzed into ceramic components. The resulting ceramic components have a very smooth surface and are fully dense, not porous as ceramic components from the sol-gel process.

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Номер записи: 99

02-01-2020 дата публикации

Method of preparing silicon carbide and filters made therefrom

Номер: US20200002177A1

Автор: John T. Fox, Kun Yang

Принадлежит: Lehigh University

A method of making SiC nanowires comprising: (a) mixing silicon powder with a carbon-containing biopolymer and a catalyst at room temperature to form a mixture; and (b) heating said mixture to a pyrolyzing temperature sufficient to react said biopolymer and said silicon power to form SiC nanowires.

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Номер записи: 100