Silicon carbide-graphite composite material and process for prod

Details Silicon carbide-graphite composite material and process for prod Silicon carbide-graphite composite material and process for prod

1986-05-06

1987-09-01

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

423345, 501 88, C04B 3556

Patent

active

046909095

ABSTRACT:
A silicon carbide-graphite composite material is disclosed. The composite material includes graphite as a secondary phase which are dispersed uniformly in a grain boundary of the silicon carbide. The graphite have an average grain size of not more than 3 .mu.m and are present in a proportion of 1 to 20 vol % based on the volume of the silicon carbide. The composite material has a density greater than 90% of the theoretical density. A process for producing the silicon carbide-graphite composite material is also disclosed. The composite material is a high-density and high-strength material.

REFERENCES:
patent: 3836673 (1974-09-01), Weaver et al.
patent: 3966855 (1976-06-01), Hollenberg et al.
patent: 4004934 (1977-01-01), Prochazka
patent: 4041117 (1977-08-01), Prochazka
patent: 4230497 (1980-10-01), Schwetz et al.
patent: 4295890 (1981-10-01), Stroke
patent: 4336216 (1982-06-01), Watanabe et al.

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