Process for preparing silicon carbide whiskers

Details Process for preparing silicon carbide whiskers Process for preparing silicon carbide whiskers

1983-01-25

1985-02-19

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

501 88, 501 95, 156DIG112, C01B 3136

Patent

active

045005044

ABSTRACT:
The process according to the present invention involves mixing 100 parts by weight of a silica gel, containing 6.0 to 25.0% by weight with respect to a silicon of a water-soluble compound of at least one metal selected from the group consisting of iron, nickel and cobalt, with 110 to 400 parts by weight of furnace carbon black having a structure indicated by a DBP absorption number of 50 ml/100 g or higher, and then reacting the mixture under a non-oxidative atmosphere at a temperature of 1,300.degree. to 1,700.degree. C. to produce silicon carbide whiskers.

REFERENCES:
patent: 3840647 (1974-10-01), Tomita et al.
patent: 3948806 (1976-04-01), Witt
patent: 4148864 (1979-04-01), Groth et al.
patent: 4230679 (1983-10-01), Mahler et al.
patent: 4283375 (1981-08-01), Horne et al.

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