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High-thermal-conductivity ceramic material and manufacturing method thereof
The invention discloses a high-thermal-conductivity ceramic material. The material is formed in the mode that mixed alumina and aluminum nitride powder is formed and then sintered. The invention further discloses a manufacturing method of the high-thermal-conductivity ceramic material. The method includes the steps that a gray blank formed after the mixed alumina and aluminum nitride powder is formed is placed in a high-temperature furnace, heat preservation is performed for a preset period of time under the protective atmosphere, then sintering is performed, and the mixed alumina and aluminum nitride powder is obtained in the mode that nano alumina powder and carbon powder are mixed and then carbonized and oxidized. The manufacturing method of the high-thermal-conductivity ceramic material is simple, raw materials are easy to obtain, and technological cost is low. The thermal conductivity of the alumina-aluminum nitride compound ceramic prepared through the method is higher than 30 W/(m*K) and is higher than that of pure alumina ceramic.
High-thermal-conductivity ceramic material and manufacturing method thereof
The invention discloses a high-thermal-conductivity ceramic material. The material is formed in the mode that mixed alumina and aluminum nitride powder is formed and then sintered. The invention further discloses a manufacturing method of the high-thermal-conductivity ceramic material. The method includes the steps that a gray blank formed after the mixed alumina and aluminum nitride powder is formed is placed in a high-temperature furnace, heat preservation is performed for a preset period of time under the protective atmosphere, then sintering is performed, and the mixed alumina and aluminum nitride powder is obtained in the mode that nano alumina powder and carbon powder are mixed and then carbonized and oxidized. The manufacturing method of the high-thermal-conductivity ceramic material is simple, raw materials are easy to obtain, and technological cost is low. The thermal conductivity of the alumina-aluminum nitride compound ceramic prepared through the method is higher than 30 W/(m*K) and is higher than that of pure alumina ceramic.
High-thermal-conductivity ceramic material and manufacturing method thereof
ZHANG GANLIN (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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