Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1993-12-07
1995-10-31
Turner, A. A.
Stock material or miscellaneous articles
Composite
Of inorganic material
428212, 428336, 4283044, 4283126, 4283128, 4283186, 4283191, 428446, 428472, 428704, C04B 3556
Patent
active
054628130
ABSTRACT:
Disclosed is a composite ceramic sintered material comprising a surface layer of a composition which contains the silicon nitride and carbon, and an internal portion of the silicon carbide or a combination of the silicon carbide, silicon nitride and carbon, the content of carbon or the content of the silicon nitride being greater in the surface layer than in the internal portion.
REFERENCES:
patent: 3911188 (1975-10-01), Torti, Jr. et al.
patent: 4843040 (1989-06-01), Oda et al.
Kamitubo Kouichi
Nagano Saburou
Nakanishi Masahito
Tajima Ken'ichi
Tateno Shuichi
Kyocera Corporation
Turner A. A.
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