| 发明名称 |
Method for reducing the gas permeability of a sintered porous silicon nitride body |
| 摘要 |
Silicon nitride bodies are improved by being impregnated with a silicon halide which is then converted to silicon imide in the pores of the body, which, in turn, is converted into silicon nitride.
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| 申请公布号 |
US4122220(A) |
申请公布日期 |
1978.10.24 |
| 申请号 |
US19770830807 |
申请日期 |
1977.09.06 |
| 申请人 |
ROSENTHAL AKTIENGESELLSCHAFT |
发明人 |
SUSSMUTH, GODEHARD |
| 分类号 |
C04B35/591;(IPC1-7):C01B21/06 |
主分类号 |
C04B35/591 |
| 代理机构 |
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