Alumina - zirconia ceramics reinforced with silicon carbide whis

Details Alumina - zirconia ceramics reinforced with silicon carbide whis Alumina - zirconia ceramics reinforced with silicon carbide whis

1987-02-03

1988-06-07

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, 501105, C04B 3556, C04B 3510, C04B 3548, C04B 3580

Patent

active

047496673

ABSTRACT:
Disclosed is a 35 to 45 volume percent silicon carbide whisker reinforced ceramic composite containing alumina and from about 5 to 21 volume percent zirconia which is used to make hard cutting tools having excellent toughness and hardness. Also disclosed are methods of producing the same.

REFERENCES:
patent: 4396724 (1983-08-01), Burden
patent: 4452906 (1984-06-01), Burden
patent: 4543345 (1985-09-01), Wei
patent: 4657877 (1987-04-01), Becher et al.
Claussen et al.; "Whisker-Reinforced Oxide Ceramics", Journal de Physique Colloque C1, supplement au N.degree. 2, Tome 47, fevrier 1986, pp. C1-693 to C1-702.
"Impact Strength of Alumina Composites", J. Barta et al., Ceramic Bulletin, vol. 51, No. 5 (1972).

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