Abstract

β-SiC was synthesized by irradiating of continuous wave YAG laser into a SiO2-C mixture with various C/SiO2 mole ratios under flowing Ar. Curled and entwined SiC whiskers having an average diameter of 0.08-0.16μm and a length of more than 100μm were obtained. The SiC whisker completely covered the surface of particles. SiC was formed by the reaction of SiO2 with C via Si. A mixture in which coarse C particles are covered with fine SiO2 particles was preferable to that in which coarse SiO2 particles are covered with fine C particles for synthesis of SiC by the reaction of SiO2 with C.

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