发明授权
- 专利标题: Method for making silicon nitride powder
- 专利标题(中): 制造氮化硅粉末的方法
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申请号: US169426申请日: 1988-03-17
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公开(公告)号: US4986972A公开(公告)日: 1991-01-22
- 发明人: Toshitsuga Ishii , Isao Imai , Akira Sano , Kouichi Sueyoshi
- 申请人: Toshitsuga Ishii , Isao Imai , Akira Sano , Kouichi Sueyoshi
- 申请人地址: JPX
- 专利权人: Toshiba Ceramics Co., Ltd.
- 当前专利权人: Toshiba Ceramics Co., Ltd.
- 当前专利权人地址: JPX
- 主分类号: C01B21/068
- IPC分类号: C01B21/068
摘要:
A mixture of silica powder and carbon powder is heated in a mixture of NH.sub.3 gas and C.sub.m H.sub.n gas. Only silica powder may be heated in a mixture of NH.sub.3 gas and C.sub.m H.sub.n gas.
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