Compositions: ceramic – Ceramic compositions – Refractory
Patent
1988-09-21
1990-07-10
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501 98, C04B 3558
Patent
active
049406809
ABSTRACT:
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.
REFERENCES:
patent: 4280850 (1981-07-01), Smith et al.
patent: 4383958 (1983-05-01), Moschetti et al.
patent: 4406667 (1983-09-01), Savin et al.
patent: 4670024 (1987-06-01), Bhat et al.
patent: 4699890 (1987-10-01), Matsui
Dixon Jr. William R.
Hollenbeck Sue
NGK Insulators Ltd.
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