Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1985-09-17
1986-10-07
Lechert, Jr., Stephen J.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 97, 501128, 501119, 264 60, 264 65, 264125, 264332, C04B 3552
Patent
active
046159908
ABSTRACT:
Silicon nitride sintered bodies which contain no more than 15% by weight metallic non-oxide compounds as silicon nitride high temperature grain growth inhibitors and total amount of 4-25% of MgO and Al.sub.2 O.sub.3 as densifying aids in MgO/Al.sub.2 O.sub.3 weight ratio being 19 to 2.
REFERENCES:
patent: 4407970 (1983-10-01), Komatsu et al.
patent: 4412008 (1983-10-01), Miyamoto et al.
patent: 4412009 (1983-10-01), Komatsu et al.
patent: 4492765 (1985-01-01), Buljan
patent: 4558018 (1985-12-01), Matsuhiro et al.
de Pous Olivier
Richon Dominique
Battelle (Memorial Institute)
Lechert Jr. Stephen J.
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