Syntheses of SiC and <TEX>$SiC-Si_3N_4$</TEX> Powder from Jecheon Quartz

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J. Korean Ceram. Soc. > Volume 23(1); 1986 > Article

Journal of the Korean Ceramic Society 1986;23(1): 67.

제천규석으로부터 SiC 및 $SiC-Si_3N_4$계 분말 합성

이홍림, 배철훈, 문준화¹

연세대학교 요업공학과
¹아세아 시멘트(주)

Syntheses of SiC and $SiC-Si_3N_4$ Powder from Jecheon Quartz

ABSTRACT

SiC and $SiC-Si_3N_4$ powder were synthesized via the carbiding and carbiding-nitriding reaction of Jecheon quartz respectively using graphite as a reducing agent. $beta$-SiC+($alpha$+$beta$)-$Si_3N_4$ composite was obtained by the carbiding-nitriding reaction of Jecheon quartz-graphite mixture at 1, 35$0^{circ}C$ in $H_2$ atmosphere. $beta$-SiC+($alpha$+$beta$)-$Si_3N_4$ composite was obtained by the carbidint-nitriding reaction of Jecheon quartz-graphite mixture at 1, 35$0^{circ}C$ in $N_2-H_2$ atmosphere. The ratio of $beta$-SiC+($alpha$+$beta$)-$Si_3N_4$ content in a produced composite could be controlled by adjusting the reaction time and gaseous mixture.