Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1989-05-26
1990-07-17
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 88, 501 92, C04B 3552, C04B 3554, C04B 3556, C04B 3558
Patent
active
049421450
ABSTRACT:
Preceramic molding compositions capable of forming low density ceramics having acceptable strength and improved wear resistance are compositions having a particle size not larger than about 105 micrometers and comprising an intimate mixture of (A) about 50-90 parts by weight of powder ingredients comprising about 2-50% by weight of graphite powder and about 98-50% by weight of a second powder selected from silicon carbide, silicon nitride, and mixtures thereof and (B) correspondingly, about 50-10 parts by weight of a preceramic polysilazane binder.
REFERENCES:
patent: 4777234 (1988-10-01), Litt et al.
patent: 4835207 (1989-05-01), Semen et al.
Moehle William E.
Rogers John J.
Semen John
Dixon Jr. William R.
Ethyl Corporation
Hogan Patricia J.
Wright Alan A.
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