Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Electrical Resistivity of the $\beta$-SiC+39vol.%$ZrB_2$ Composites

$\beta$-SiC+39vol.%$ZrB_2$ 복합체의 전기저항률

  • Shin, Yong-Deok (School of Electrical and Electronic, WonkWang Univ.) ;
  • Ju, Jin-Young (School of Electrical and Electronic, WonkWang Univ.) ;
  • Yoon, Se-Won (School of Electrical and Electronic, WonkWang Univ.) ;
  • Hwang, Chul (School of Electrical and Electronic, WonkWang Univ.) ;
  • Lee, Jong-Deok (School of Electrical and Electronic Communication Eng., SeoNam Univ.) ;
  • Song, Joon-Tae (School of Electrical and Computer Engineering, Sung Kyun Kwan Univ.)
  • 신용덕 (원광대학교 공과대학 전기전자공학부) ;
  • 주진영 (원광대학교 공과대학 전기전자공학부) ;
  • 윤세원 (원광대학교 공과대학 전기전자공학부) ;
  • 황철 (원광대학교 공과대학 전기전자공학부) ;
  • 이종덕 (서남대학교 공과대학 전기전자통신공학) ;
  • 송준태 (성균관대학교 공과대학 전기전자 및 컴퓨터공학부)
  • Published : 1999.07.19
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Abstract

The electrical conductive mechanism and temperature dependence of electrical resistivity of ${\beta}-SiC+ZrB_2$ composites with $Al_2O_3+Y_2O_3$ contents were investigated. The electrical resistivity of hot-pressed composites was measured by the Pauw method from $25^{\circ}C$ to $700^{\circ}C$. The electrical resistivity of the composites showed the PTCR(Positive Temperature Coefficient Resistivity) and follow the electrical conduction model for a homogeneous mixture of two kind of particles with different conductivity. Also, the electrical resistivity versus temperature curves indicate the formation of local chains of $ZrB_2$ particles.

Keywords