Abstract
In this paper, thermal barrier materials of mullite whiskers made by kyanite is studied, take -325~+400 mesh kyanite as raw material, the firing conditions is that nucleation temperature is 1150°C and crystallization temperature is 1250°C; the adding method of catalyst (AlF3) is external additive. After the orthogonal experiment, it is determined that the effects order on products of raw material granularity, heating rate and catalyst addition is raw material granularity > catalyst addition > heating rate, and the best experimental conditions is obtained.
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