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A platform for research: civil engineering, architecture and urbanism
High-thermal-conductivity silicon combined silicon carbide honeycomb ceramic filter and preparation process thereof
The invention discloses a high-thermal-conductivity silicon combined silicon carbide honeycomb ceramic filter which comprises a plurality of cuboid-shaped unit bodies, all the unit bodies are adjacently spliced to form a whole with a roughly circular section, in the whole, a circle of silicon nitride unit bodies located on the periphery are first unit bodies, and a circle of silicon carbide unit bodies located on the periphery are second unit bodies. And all the silicon combined silicon carbide unit bodies surrounded by the first unit bodies are second unit bodies. The invention also discloses a preparation process of the silicon combined silicon carbide honeycomb ceramic filter. Compared with the second unit body, the first unit body adopts silicon nitride to replace silicon carbide, so that the oxidation resistance of the peripheral first unit body is enhanced, and the second unit body can be better prevented from being oxidized to influence the overall thermal shock resistance.
本发明公开了一种高热导率硅结合碳化硅蜂窝陶瓷过滤器，包括若干呈长方体状的单元体，所有的单元体相邻拼接后形成截面为大致圆形的整体，该整体中，位于外围的一圈氮化硅单元体为第一单元体，被第一单元体包围的所有硅结合碳化硅单元体为第二单元体。本申请还公开了此种硅结合碳化硅蜂窝陶瓷过滤器的制备工艺。第一单元体相较于第二单元体而言，采用氮化硅取代了碳化硅的形式，使得外围的第一单元体的抗氧化能力变强，能够更好的防止第二单元体产生氧化，影响整体的抗热冲击性能。
High-thermal-conductivity silicon combined silicon carbide honeycomb ceramic filter and preparation process thereof
The invention discloses a high-thermal-conductivity silicon combined silicon carbide honeycomb ceramic filter which comprises a plurality of cuboid-shaped unit bodies, all the unit bodies are adjacently spliced to form a whole with a roughly circular section, in the whole, a circle of silicon nitride unit bodies located on the periphery are first unit bodies, and a circle of silicon carbide unit bodies located on the periphery are second unit bodies. And all the silicon combined silicon carbide unit bodies surrounded by the first unit bodies are second unit bodies. The invention also discloses a preparation process of the silicon combined silicon carbide honeycomb ceramic filter. Compared with the second unit body, the first unit body adopts silicon nitride to replace silicon carbide, so that the oxidation resistance of the peripheral first unit body is enhanced, and the second unit body can be better prevented from being oxidized to influence the overall thermal shock resistance.
本发明公开了一种高热导率硅结合碳化硅蜂窝陶瓷过滤器，包括若干呈长方体状的单元体，所有的单元体相邻拼接后形成截面为大致圆形的整体，该整体中，位于外围的一圈氮化硅单元体为第一单元体，被第一单元体包围的所有硅结合碳化硅单元体为第二单元体。本申请还公开了此种硅结合碳化硅蜂窝陶瓷过滤器的制备工艺。第一单元体相较于第二单元体而言，采用氮化硅取代了碳化硅的形式，使得外围的第一单元体的抗氧化能力变强，能够更好的防止第二单元体产生氧化，影响整体的抗热冲击性能。
High-thermal-conductivity silicon combined silicon carbide honeycomb ceramic filter and preparation process thereof
高热导率硅结合碳化硅蜂窝陶瓷过滤器及其制备工艺
SHEN QINJUAN (author) / GAO SONG (author) / CHEN YINGJIAN (author) / LI CHENCHEN (author) / KIM SHIN-KI (author) / CAO ZHEMIN (author) / REN HAIBIN (author)
2023-10-10
Patent
Electronic Resource
Chinese
Silicon carbide honeycomb ceramic and preparation method thereof
| European Patent Office | 2023
High-thermal-conductivity silicon carbide ceramic and preparation method thereof
| European Patent Office | 2023