发明授权
- 专利标题: Silicon nitride sintered members
- 专利标题(中): 氮化硅烧结体
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申请号: US247373申请日: 1988-09-21
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公开(公告)号: US4940680A公开(公告)日: 1990-07-10
- 发明人: Tomonori Takahashi
- 申请人: Tomonori Takahashi
- 申请人地址: JPX
- 专利权人: NGK Insulators, Ltd.
- 当前专利权人: NGK Insulators, Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX62-242576 19870929
- 主分类号: C04B35/584
- IPC分类号: C04B35/584 ; C04B35/593
摘要:
A silicon nitride sintered member including a silicon nitride sintered body and a dense silicon nitride coating layer covering the surface of the silicon nitride sintered body. An intergranular phase of the silicon nitride sintered body is substantially composed of crystals.
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