PROCESS FOR PRODUCTION SILICON CARBIDE WHISKERS

摘要

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