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Degradation Aging of BaTiO3 Microwave Ceramic Capacitors for EMI Applications at High-Voltage

Journal Key Engineering Materials (Volumes 336 - 338)
Volume High-Performance Ceramics IV
Edited by Wei Pan and Jianghong Gong
Pages 371-373
DOI 10.4028/www.scientific.net/KEM.336-338.371
Citation Zhao Xian Xiong et al., 2007, Key Engineering Materials, 336-338, 371
Online since April, 2007
Authors Zhao Xian Xiong, Z.G. Su, Hong Qiu
Keywords Degradation Aging, Microwave Ceramic Capacitor, Reliability
Abstract

Degradation aging of BaTiO3 microwave ceramic capacitors for EMI applications at highvoltage, AC 10kV, was focused in this paper. Electric performances of the ceramic capacitors were systematically evaluated with thermal shock (5 cycles of –30 ºC for 1 h and then 125ºC for 1 h), damp heat (100% RH at 40ºC for 500 h), and, endurance at high temperature (DC 10 kV at 100ºC for 500 h). High reliability for the ceramic capacitor was obtained with optimal ceramic composition, sintering temperature, epoxy resin, curing agent and additives, which was satisfied with practical microwave technologies.

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