| 액상량이 탄화규소 소결체의 미세구조 및 상변태에 미치는 영향 |
| 이종국, 강현희, 박종곤1, 이은구 |
조선대학교 재료공학과
1조선대학교 재료공학 |
| Influence of Liquid-Phase Amount on the Microstructure and Phase Transformation of Liquid-phase Sintered Silicon Carbide |
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| ABSTRACT |
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${beta}$-silicon carbides with yttrium aluminum garnet of 2,5,10 mol% were prepared by a liquid--phase sint-ering and the microstructural evolution and phase transformation were investigated during sintering as functions of liquid-phase amount and sintering time. The rate of grain growth decreases with the addition of the amount of yttrium aluminum garnet (YAG) in the SiC starting powder however the apparent density and the aspect ratio of grains in sintered body increase. The phase transformation from ${beta}$-SiC to ${alpha}$-SiC were dependent on the liquid-phase amount and sintering time. |
| Key words:
Sillicon carbide, Liquid phase sintering, Grain growth, Microstructure, phase transformation |
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