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1. 发明专利

JPS5761611A Preparation of ultrafine powder of carbide and its device 失效
标题翻译：碳化硼超细粉及其装置的制备
公开(公告)号：JPS5761611A
公开(公告)日：1982-04-14
申请号：JP13499680
申请日：1980-09-26
申请人： Yoshinori Ando , Ryoji Ueda
发明人： UEDA RIYOUJI , ANDOU YOSHINORI
IPC分类号： C01B31/30 , C01B31/36
摘要： PURPOSE: To prepare ultrafine powder of carbide with a low content of impurity, by bringing an electrically-conductive material, e.g., carbon, etc. into contact with a substance, e.g., silicon, etc. so that electricity is applied in a vacuum container having a specific introduced gas.
CONSTITUTION: The silicon block 3 as a substance is placed on the base 2 made of a carbon material in the vacuum container 1. The electrically-conductive member 4 held by the holding part 5 made of a carbon material is brought into contact with the surface of the silicon block 3. After the silicon block 3 is preheated, electricity is applied by the electric wires 8 and 9 so that electric current is applied through the silicon block 3 and the base 2. A carbon component-containing compound, e.g., methane gas, is fed from the circular nozzle 11 through the feed pipe 14. Consequently, silicon is reacted with carbon, silicon is reacted with methane gas, and ultrifine powder of silicon carbide is attached to the inner wall of the vacuum container 1. After the reaction is over, the ultrafine powder is gathered to collect silicon carbide.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过使诸如碳等的导电材料与诸如硅等的物质接触来制备具有低杂质含量的碳化物的超细粉末，使得电被施加在真空容器中具有特定的引入气体。构成：作为物质的硅块3被放置在真空容器1中由碳材料制成的基座2上。由碳材料制成的保持部分5所保持的导电构件4与表面在硅块3预热之后，通过电线8和9施加电，使得电流通过硅块3和基底2施加。含碳成分的化合物，例如甲烷气体从圆形喷嘴11通过进料管14进料。因此，硅与碳反应，硅与甲烷气反应，并将碳化硅的最终粉末附着到真空容器1的内壁。反应结束，超细粉末聚集，收集碳化硅。

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