Silicon carbide-graphite composite material

Details Silicon carbide-graphite composite material Silicon carbide-graphite composite material

1985-02-14

1987-10-20

Dixon, Jr,, William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

423345, C04B 3556

Patent

active

047014261

ABSTRACT:
A silicon carbide-graphite composite material is disclosed. The composite material includes graphite as a secondary phase which is segregated along the grain boundaries of all the silicon carbide grains. The graphite has an average grain size of not more than 3 .mu.m and is 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. 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: 4336266 (1982-06-01), Watanabe et al.

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