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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The Characteristics on the Accelerated Degradation of Bi-based Varistor fabricated with ZnO Nano-powder

ZnO 나노파우더로 제조된 Bi계 바리스터의 가속열화 특성

  • Wang, Min-Sung (Wonkwang Univ. School of Electrical Electronic and Information Engineering) ;
  • Wang, Zengmei (Wonkwang Univ. School of Electrical Electronic and Information Engineering) ;
  • Lee, Dong-Gyu (Kwangwoon Univ.) ;
  • Park, Choon-Bae (Wonkwang Univ. School of Electrical Electronic and Information Engineering)
  • 왕민성 (원광대학교 전기전자 및 정보공학부) ;
  • 왕증매 (원광대학교 전기전자 및 정보공학부) ;
  • 이동규 (광운대학교) ;
  • 박춘배 (원광대학교 전기전자 및 정보공학부)
  • Published : 2006.11.09
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Abstract

Nano-Varistors fabricated with ZnO 30nm and 80nm powders were studied about the electrical characteristics with AC accelerated degradation in this paper Especially, ZnO nano-powder varistors were sintered m air at $1050^{\circ}C$ and analyzed the phenomenons of before and after AC degradation test. The stress conditions of AC degradation test were $1.0V_{1mA}$ $115{\pm}2^{\circ}C$ for 24h. 80nm-varistor was exhibited better performance than 30nm-varistor m the electrical stabilities. And then 80nm-varistor resulted m the degradation characteristics that the variation rate of operating voltage, nonlinear coefficient and leakage current was -0 3%, -0 4% and -3 3%, respectively.

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