Synthesis of Silicon Nitride from Kimcheon Quartzite

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J. Korean Ceram. Soc. > Volume 24(2); 1987 > Article

Journal of the Korean Ceramic Society 1987;24(2): 147.

김천규석으로부터 질화규소의 합성

이홍림, 서원선, 조덕호¹, 이종민¹

연세대학교 공과대학 요업공학과
¹국립공업시험원

Synthesis of Silicon Nitride from Kimcheon Quartzite

ABSTRACT

ders were prepared by the simultaneous reduction and nitridation from powder mixtures of Kim cheon quartzite and carbon (graphite or carbon black) at1400$^{circ}C$ for 10 hours in nitrogen atmosphere. The effects of the reaction variables on the yield of products and on the ${alpha}$/${beta}$ ratio were examined. The average particle size, density, and the ${alpha}$/${beta}$ ratio of the obtained si3N4 were 1.0$mutextrm{m}$, 3.10g/㎤ and 90/10, respectively. It was found that the Si3N4 powders obtained in this work were comparable to the foreign commercial products.