Abstract

Silicon carbide whiskers (SiC(w)) are synthesized by the pyrolysis of rayon fibers impregnated with sol—gel-derived SiO2. The influence of boric acid on whisker growth and the effect of varying the TEOS:rayon weight ratio are studied and reported. Evolution of SiC(w) from impregnated rayon fibers in the carbonized and in the carbothermal stages is investigated.

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