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http://dx.doi.org/10.4313/JKEM.2006.19.7.662

Electrical and Microstructure Properties on Sintering Conditions of ZnO Varistor  

Yoon, Jung-Rag (삼화콘덴서 연구소)
Chung, Tae-Serk (삼화콘덴서 연구소)
Lee, Heun-Young (명지대학교 전기공학과)
Lee, Serk-Won (호서대학교 정보제어공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.7, 2006 , pp. 662-666 More about this Journal
Abstract
Microstructure and electrical properties of ZnO varistors as a function of sintering temperature and times were investigated. Sintering temperature and times greatly affected electrical properties and Bi-rich liquid phase of the microstructure. The varistor which were sintered at $1125^{\circ}C\sim1150^{\circ}C$, for 2 hr exhibited the varistor voltage$(V_c)$, nonlinear coefficient $(V_{10mA}/V_{1mA})$, leakage current$(I_L)$ dielectric constant and dissipation factor as $225\sim250V/mm,\;0.89\sim0.92,\;0.8\sim1.1{\mu}A,\;720\sim740\;and\;1.8\sim2.0%$, respectively.
Keywords
ZnO varistor; Varistor voltage $(V_c)$; Dielectric properties;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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