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J. Korean Ceram. Soc. > Volume 30(3); 1993 > Article
Journal of the Korean Ceramic Society 1993;30(3): 243.
알콕사이드로부터 $Al_2O_3-SiC$ 복합재료의 제조 및 특성 II. 피복형 $Al_2O_3-SiC$ 복합분말의 합성
이홍림, 김규영
연세대학교 공과대학 세라믹공학과
Synthesis and Properties of $Al_2O_3-SiC$ Composites from Alkoxides II. Synthesis of Coated Type $Al_2O_3-SiC$ Composite Powders
Coated type Al2O3-SiC composite powders were synthesized by surface modification method. Transformation temperature to $alpha$-Al2O3 of Al2O3 monolith was 115$0^{circ}C$ whereas increased to 1200, 1250, 130$0^{circ}C$ with increment of SiC content to 5, 15, 25wt%. Transformation temperature to $alpha$-Al2O3 was lowered by $alpha$-Al2O3 seeding. FTIR data analysis and electron micrographs showed that Al2O3 particles were effectively coated on SiC particles.
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