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HOME > J Korean Powder Metall Inst > Volume 2(3); 1995 > Article
SiC/TiB_2 복합체의 미세구조와 기계적 특성
Microstructures and Mechanical Properties of SiC/TiB_2 Composites
Journal of Korean Powder Metallurgy Institute 1995;2(3):216-222

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SiC/TiB_2 composites of varying TiB_2 content from 0 to 52 vol.% were prepared by pressureless sintering. When these composites were sintered at 2150°C the mechanical properties such as elastic modulus, strength and toughness increased with increasing TiB_2 content. On the other hand, at a sintering temperature of 2200°C, the mechanical properties reduced gradually with increasing TiB_2 content. The main reason was deduced from the onset of spontaneous microcracking and the critical particle size for microcracking was calculated approximately 5.6 mutextrmm.


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