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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5. Отображено 5.
07-10-2009 дата публикации

Method for preparation of pore heterogeneous distribution bionic bone material

Номер: CN0101549175A
Автор: ZOU JIANPENG, RUAN JIANMING, JIANPENG ZOU, JIANMING RUAN
Принадлежит:

The invention discloses a method for the preparation of a pore heterogeneous distribution bionic bone material. The invention takes HA/Ti or HA/316L composite powder as raw material and forms a compact layer/a transition layer/a sparse layer by separating the raw material powder within a mould, a compact is obtained by general pressing under the pressure of 100-300MPa; the compact is sintered in vacuum and is subjected to heat preservation for 1.5-2 hours at 800 DEG C, and the temperature is then heated up slowly to sintering temperature from 1050-1250 DEG C, followed by the heat preservation. The bionic bone material obtained from the invention has the compact layer as the outer layer, the porosity of the transition layer is 38-60%, the pore diameter of 100-500 [mu]m accounts for 30-70%, the porosity of the inner layer is 57-80%, the pore diameter of 100-500 [mu]m accounts for 50-80%, the pore structures are all interconnected pores and can meet the demand of the pore size of 0-500 [mu ...

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Номер записи: 1
18-04-2023 дата публикации

MAX phase reinforced copper-based graphite composite material and preparation method thereof

Номер: CN115976357A
Автор: ZOU JIANPENG, LI FEIYANG, WEI HONGMING, ZHAN WENYI, DAI YANZHANG
Принадлежит:

The invention provides a preparation method of an MAX phase reinforced copper-based graphite composite material, which comprises the following steps of: uniformly mixing the following components in percentage by mass: 25-35% of copper-coated graphite powder, 10-20% of Ti2SnC powder and the balance of pure copper powder; 40% to 60% of Ti2SnC powder; 10-25% of copper powder; the mixed powder is put into a mold to be pre-pressed; vacuum sintering is carried out under inert gas protection, the air pressure is set to be 20-30 Mpa, the temperature rising speed is 20-30 DEG C/min, the sintering temperature is 800-950 DEG C, and the heat preservation time is 5-30 min; and cooling along with the furnace. The MAX phase reinforced copper-based graphite composite material prepared by the preparation method has good self-lubricating performance and wear resistance at the same time.

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Номер записи: 2
04-07-2012 дата публикации

Method for preparation of pore heterogeneous distribution bionic bone material

Номер: CN0101549175B
Автор: ZOU JIANPENG, JIANPENG ZOU
Принадлежит:

The invention discloses a method for the preparation of a pore heterogeneous distribution bionic bone material. The invention takes HA/Ti or HA/316L composite powder as raw material and forms a compact layer/a transition layer/a sparse layer by separating the raw material powder within a mould, a compact is obtained by general pressing under the pressure of 100-300MPa; the compact is sintered in vacuum and is subjected to heat preservation for 1.5-2 hours at 800 DEG C, and the temperature is then heated up slowly to sintering temperature from 1050-1250 DEG C, followed by the heat preservation.The bionic bone material obtained from the invention has the compact layer as the outer layer, the porosity of the transition layer is 38-60%, the pore diameter of 100-500 [mu]m accounts for 30-70%,the porosity of the inner layer is 57-80%, the pore diameter of 100-500 [mu]m accounts for 50-80%, the pore structures are all interconnected pores and can meet the demand of the pore size of 0-500 [mu]m ...

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Номер записи: 3
24-09-2008 дата публикации

316L toughening HA group biological function gradient material and preparation method thereof

Номер: CN0101269238A
Автор: ZOU JIANPENG, RUAN JIANMING, HUANG BOYUN, JIANPENG ZOU, JIANMING RUAN, BOYUN HUANG
Принадлежит:

The invention discloses a 316L toughened HA-radical biology functionally gradient material and a preparation method thereof, which is to mix HA powder and 316L fiber or 316 powder by gradient ratio, the volume percentage content of the 316 fiber varies between 0 and 60 percent in a gradient way, the volume percentage content of the 316 powder varies between 0 and 100 percent in a gradient way, and the volume percentage content of the HA varies between 0 and 100 percent in a gradient way. The gradient mixed materials are evenly spread in a hot-pressing die in turn by 1-2 mm per layer, and are hot-pressed under 20-30 MPas of inert atmosphere. The biology functionally gradient material solves the problems that the two phases thermal stress of HA/316L do not match with each other, and combines with the respective advantages of 316 material and HA biological ceramic; a kind of 316L toughened HA-radical FGM which possesses fine biocompatibility and bioactivity as well as good mechanical properties ...

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Номер записи: 4
21-10-2009 дата публикации

Beta-TCP porous material and preparation method thereof

Номер: CN0101560092A
Автор: ZOU JIANPENG, JIANPENG ZOU
Принадлежит:

The invention relates to a Beta-TCP porous material and a preparation method thereof. Natural plant fiber or polyurethane sponge is used as a pore creating material. A three-dimensional-net-shaped skeleton green body is prepared by immersing the pore creating material into a slurry made from Beta-TCP which is doped with a trace element Zn. The Beta-TCP porous material is obtained by drying and sintering the three-dimensional-net-shaped skeleton green body. The Beta-TCP material which is doped with the Zn better satisfies the need for material degradation and osseous tissue creeping growth. In the invention, the addition of the trace element Zn into the Beta-TCP porous material improves the ALP activity and promotes the degrading of the Beta-TCP porous material in the case of low porosity, thereby greatly improving the pressive strength and the degrading capability of the Beta-TCP porous material and solving the problem that the mechanical property and the biodegradation property of a Beta-TCP ...

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Номер записи: 5