Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical Characteristics of ZnO Nano-Powder Varistors

ZnO 나노 분말 바리스터의 전기적 특성

  • So, Sun-Jin (Wonkwang Uni., School of Electrical, Electronic and Information Engineering) ;
  • Lim, Keun-Young (Wonkwang Uni., School of Electrical, Electronic and Information Engineering) ;
  • Jin, Hu-Jie (Wonkwang Uni., School of Electrical, Electronic and Information Engineering) ;
  • Kim, Jong-Ho (Wonkwang Uni., School of Electrical, Electronic and Information Engineering) ;
  • Park, Choon-Bae (Wonkwang Uni., School of Electrical, Electronic and Information Engineering)
  • 소순진 (원광대학교 전기전자 및 정보공학부) ;
  • 임근영 (원광대학교 전기전자 및 정보공학부) ;
  • 김호걸 (원광대학교 전기전자 및 정보공학부) ;
  • 김종호 (원광대학교 전기전자 및 정보공학부) ;
  • 박춘배 (원광대학교 전기전자 및 정보공학부)
  • Published : 2004.11.11
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Abstract

Varistors based on M.Matsuoka were prepared from ZnO nanopowders, every one of which had bar type and about less 100nm length. The compact green disks were conventionally sintered in air for 2 hours at a temperature of $1050^{\circ}C$. The Varistors with nonlinear coefficient ${\alpha}=45$, leakage current $I_{\ell}=2{\times}10^{-7}A/cm^2$, operating voltage 9000v/cm, and average grain size $3{\mu}m$ were obtained. The advantages of the samples were due to greater structural homogenity, higher density, smaller grain size.

Keywords