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J. Korean Ceram. Soc. > Volume 21(1); 1984 > Article
Journal of the Korean Ceramic Society 1984;21(1): 5.
완도납석으로 부터 $beta$-Sialon의 합성
이홍림, 신현곤
연세대학교 공과대학 요업공학과
Synthesis of $beta$-Sialon from Wando Pyrophyllite
$eta$-Sialon synthesis was investigated via the simulataneous reduction and nitriding of Wando pyrophyllite. When Wando pyrophyllite-graphite-$Si_3N_4$ seed mixture was heated at 135$0^{circ}C$ for as long as 10 hours in 80% $N_2$-20%$H_2$ atomsphere $eta$-$Si_3N_4$ solid solution was mainly formed together with a small amount of $alpha$-$Si_3N_4$ The value z of the forming $Si_{6-x}Al_2O_2N{8-z}$ was decreased with heating time.
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