Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1993-03-08
1994-06-21
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 87, 501 91, 501 92, 501 95, 501 97, C04B 3556, C04B 3558
Patent
active
053228235
ABSTRACT:
A ceramics composites prepared by dispersing any one of the following materials (i) to (viii) in Al.sub.2 O.sub.3 which as a matrix-containing crystalline grains having a grain size of 0.5 to 100 .mu.m. (i) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 40% by volume of fine SiC particles having a particle size of not more than 2 .mu.m. (ii) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 40% by volume of fine Si.sub.3 N.sub.4 particles having a particle size of not more than 2 .mu.m. (iii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of SiC whiskers having a diameter of 0.05 to 2 .mu.m. (iv) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of Si.sub.3 N.sub.4 whiskers having a diameter of 0.1 to 2 .mu.m. (v) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 30% by volume of SiC whiskers having a diameter of 0.05 to 2 .mu.m. (vi) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 30% by volume of Si.sub.3 N.sub.4 whiskers having a diameter of 0.1 to 2 .mu.m. (vii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of fine SiC particles having a particle size of not more than 2 .mu.m. (viii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of fine Si.sub.3 N.sub.4 particles having a particle size of not more than 2 .mu.m.
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Matsuki Ryuichi
Niihara Koichi
Sasaki Hiroshi
Takenouchi Takeyoshi
Ueda Hisao
Bell Mark L.
Jones Deborah
Mitsubishi Materials Corp.
Niihara Koichi
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