发明授权
US4940680A Silicon nitride sintered members 失效
氮化硅烧结体

Silicon nitride sintered members
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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