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J. Korean Ceram. Soc. > Volume 28(10); 1991 > Article
Journal of the Korean Ceramic Society 1991;28(10): 824.
$alpha$-SiC 소결체의 특성에 미치는 소성조건의 영향
정두화, 김인술, 김효준
산업과학기술연구소 내화물연구실
Influence of Sintering Condition on Characteristics of $alpha$-SiC Ceramics
$alpha$-SiC(B; 0.4 wt, C; 3 wt%) was sintered in Ar atmosphere from 205$0^{circ}C$ to 220$0^{circ}C$ by means of pressureless sintering and gas pressure sintering in order to find optimum sintering condition of $alpha$-SiC. Mechanical properties and microstructures of sintered bodies were investigated according to sintering method. The effect of sintering condition on sinterability of $alpha$-SiC was also examined by using the dilatometer. 97.5% and 98.8% of theoretical density were obtained from pressureless sintering and gas pressure sintering of $alpha$-SiC powder, respectively. And modulus of rupture was measured as 270~350 MPa and 420 MPa respectively.
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