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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 4. Отображено 4.
29-08-2023 дата публикации

Energy-containing perfluoroborate adhesive as well as preparation method and application thereof

Номер: CN116655669A
Автор: ZOU MEISHUAI, ZHANG LICHEN, SU XING, LI XIAODONG, WANG SHUO
Принадлежит:

The invention relates to an energetic perfluoroborate adhesive as well as a preparation method and application thereof, and belongs to the technical field of energetic adhesives. The structural formula of the adhesive is shown in the specification; wherein n is a positive integer smaller than or equal to 20. The adhesive is prepared from the following main raw materials: 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol, boric acid and glycidyl azide polymer; according to the preparation method, boric acid and 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol form a borate bond, glycidyl azide polymer is compounded with the 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol through the boron-nitrogen coordination effect of glycidyl azide polymer and 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol, and controllable preparation of the energy-containing perfluorononane-1, 2-diol is achieved. The energetic perfluoroborate adhesive is high in energy and stable in storage, and can improve the energy and mechanical ...

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Номер записи: 1
18-08-2023 дата публикации

Edge-emitting semiconductor light-emitting structure with side wall grating structure and preparation method of edge-emitting semiconductor light-emitting structure

Номер: CN116613628A
Автор: ZHAO WU, ZHANG LICHEN, WANG JUN, CHENG YANG, SU JIANKUN
Принадлежит:

The invention discloses an edge-emitting semiconductor light-emitting structure with a side wall grating structure and a preparation method thereof. The edge-emitting semiconductor light-emitting structure with the side wall grating structure comprises a semiconductor substrate layer; the ridge-shaped structure comprises a lower limiting layer, a lower waveguide layer, an active layer, an upper waveguide layer and an upper limiting layer which are sequentially stacked on the semiconductor substrate layer; the width of the ridge-shaped structure in the slow axis direction is gradually increased from top to bottom, the two sides of the ridge-shaped structure in the slow axis direction are provided with characteristic side walls, and the characteristic side walls are the side walls of the side portions of the upper waveguide layer, the active layer and the lower waveguide layer in the slow axis direction. A plurality of spaced areas of the characteristic side wall are recessed towards the ...

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Номер записи: 2
12-05-2023 дата публикации

Passivated high-water-reactivity aluminum powder as well as preparation method and application thereof

Номер: CN116102386A
Автор: ZOU MEISHUAI, ZHANG LICHEN, SU XING, LI XIAODONG, WANG SHUO
Принадлежит:

The invention relates to passivated high-water-reactivity aluminum powder as well as a preparation method and application thereof, and belongs to the technical field of high-energy aluminum powder modification. The passivated high-energy aluminum powder comprises the following components in percentage by mass: 60%-80% of high-water-reaction-activity aluminum powder, 12%-36% of fluoroalkyl silane and 4%-8% of GAP (Glycol Ammonium Phosphate), wherein the total mass of the raw materials of the passivated high-energy aluminum powder is 100%; in the passivated aluminum powder with high water reaction activity, silane coats the surface of the aluminum powder through a silicon-oxygen bond, and a terminal hydroxyl group of glycidyl azide polymer is combined with fluorosilane. When the passivated high-water-reaction-activity aluminum powder is used as a metal fuel in an explosive, the passivated high-water-reaction-activity aluminum powder can improve energy release of the explosive, and the overall ...

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Номер записи: 3
29-08-2023 дата публикации

Layer-by-layer self-assembled energetic aluminum powder as well as preparation method and application thereof

Номер: CN116655441A
Автор: ZOU MEISHUAI, ZHANG LICHEN, SU XING, LI XIAODONG, WANG SHUO
Принадлежит:

The invention relates to layer-by-layer self-assembled energetic aluminum powder as well as a preparation method and application thereof, and belongs to the technical field of propellant fuel. A first coating layer is formed on the surface of the micron aluminum powder through Al-F strong electron acting force formed by etching aluminum oxide on the surface of the micron aluminum powder through hydrofluoric acid, boric acid forms a dynamic boric acid ester bond with 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol to form a second coating layer, and glycidyl azide polymer forms a third coating layer through dynamic boric acid ester bond with 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol and 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol to form a third coating layer through dynamic boric acid ester bond with 1H, 1H, 2H, 3H, 3H-perfluorononane-1, 2-diol. And forming a third coating layer under the boron-nitrogen coordination action of 1, 2-diol, thereby finally obtaining the layer-by-layer self-assembled ...

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Номер записи: 4