Starting composition for the production of silicon carbide and m

Details Starting composition for the production of silicon carbide and m Starting composition for the production of silicon carbide and m

1988-12-19

1991-12-03

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 90, 501 53, 264 65, 423345, C04B 3556

Patent

active

050700499

ABSTRACT:
In the production of silicon carbide, a starting composition comprising silicon dioxide powder and a carbonaceous substance and having a bulk density of 0.2 to 2.0 g/cm.sup.3 is used, wherein the silicon dioxide is covered with the carbonaceous substance and uniformly dispersed therein. The starting composition is produced by forming a kneaded mixture of silicon dioxide and high molecular weight organic compound, heating the kneaded mixture to conduct carbonization and thereby form a composite body and then granulating the composite body into 3 to 25 mm sized granules.

REFERENCES:
patent: 4529575 (1985-07-01), Enomoto et al.
patent: 4839150 (1989-06-01), Coyle et al.

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