Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Formation of TiB2-SiC Ceramics from TiB2-Polycarbosilane Mixtures

Polycarbosilane을 이용한 TiB2-SiC 세라믹의 형성

  • Kang, Shin-Hyuk (School of Materials Science and Engineering, Sungkyunkwan University) ;
  • Lee, Dong-Hwa (School of Materials Science and Engineering, Sungkyunkwan University) ;
  • Kim, Deug-Joong (School of Materials Science and Engineering, Sungkyunkwan University)
  • 강신혁 (성균관대학교 신소재공학부) ;
  • 이동화 (성균관대학교 신소재공학부) ;
  • 김득중 (성균관대학교 신소재공학부)
  • Published : 2008.09.30
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Abstract

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 $TiB_2$.

Keywords

References

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