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J. Korean Ceram. Soc. > Volume 45(9); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(9): 544.
doi: https://doi.org/10.4191/kcers.2008.45.9.544
Polycarbosilane을 이용한 TiB2-SiC 세라믹의 형성
강신혁, 이동화, 김득중
성균관대학교 신소재공학부
Formation of TiB2-SiC Ceramics from TiB2-Polycarbosilane Mixtures
Shin-Hyuk Kang, Dong-Hwa Lee, Deug-Joong Kim
School of Materials Science and Engineering, Sungkyunkwan University
The formation of $TiB_2-SiC$ ceramics from $TiB_2$-Polycarbosilane (PCS) mixtures was investigated. The powder mixture of $TiB_2$ with PCS was pressed at $300^{circ}C$ with 200 MPa and sintered at $1700{sim}2000^{circ}C$ for 1 h in a flowing Ar atmosphere. The sintered density of $TiB_2$ with PCS is 93.7% after sintering at $2000^{circ}C$ for 1 h, which is slightly smaller than that of the specimen without PCS. The microstructure of $TiB_2$ with PCS consists of small and uniform $TiB_2$ particles with well dispersed SiC particles derived from PCS. It is believed that the addition of PCS was effective to suppress the grain growth of $TiB_2$.
Key words: $TiB_2$, Polycarbosilane, Sintering, Grain growth
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