Process for producing silicon carbide whiskers

Details Process for producing silicon carbide whiskers Process for producing silicon carbide whiskers

1987-09-15

1989-10-10

Doll, John

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

C01B 3136

Patent

active

048730700

ABSTRACT:
A process for producing silicon carbide whiskers by heating a react solid silicon-containing starting material and carbon-containing starting material in a reaction vessel, wherein a molding material, which is prepared by previously molding the silicon-cotaining starting material into a predetermined shape, and a powdery carbon starting material are heated to a predetermined reaction temperature under a hydrogen gas atmosphere. Silicon carbide whiskers which are linear with no bendings, long fiber length, high aspect ratio and low silicon dioxide impurity can be obtained at a high yield of greater than 90% based on silicon vaporized from the silicon-containing starting material.

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