Fabrication of Electrically Conductive <tex>$TiB_2$</tex>-BN-AlN Composites

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J. Korean Ceram. Soc. > Volume 33(5); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(5): 524.

전기 전도성 $TiB_2$-BN-AlN 복합체의 제조

배동식, 한경섭, 최상홀¹

한국과학기술연구원 세라믹스연구부
¹한양대학교 무기재료공학과

Fabrication of Electrically Conductive $TiB_2$-BN-AlN Composites

ABSTRACT

TiB2-BN-AlN composite was fabricated with the addition of 0~12 wt% WC by HP-sintering. Their sinterability. microstructure mechanical and electrical properties were studied as a function of the WC content. The addition of WC up to 12 wt% increased the flexural strength and decreased electrical resistivity as compared with those of the TiB2-BN-AlN composites. The electrical resistivity of TiB2-BN-AlN composite with 4.3 wt% WC was 640$mu$$Omega$-cm. It was found that the TiB2-BN-AlN composites with WC addition more than 4wt% was suitable for the application to the Al evaporation boat.

Key words: $TiB_2$-BN-AlN, Resistivity, WC, Evaporation boat