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

Zhao Xian Xiong; Z.G. Su; Hong Qiu

doi:10.4028/www.scientific.net/KEM.336-338.371

Paper Titles

Electric Fatigue of PZT Piezoelectric Ceramics under Bias and Unipolar Pulse Cycling Field
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Bipolar Electric Fatigue in Ferroelectric Nb-Doped PZST Ceramics
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Propagation and Deflection of Electric-Field-Induced Microcracks in 0.69Pb(Mg_1/3Nb_2/3)O₃-0.31PbTiO₃ Ferroelectric Single Crystals
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Degradation of Lead Zirconate Titanate Piezoelectric Ceramics Induced by Water and AC Voltages
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Degradation Aging of BaTiO₃ Microwave Ceramic Capacitors for EMI Applications at High-Voltage
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The Interfacial Characteristics of Ba_0.6Sr_0.4TiO₃ Films Deposited by Radio Frequency Magnetron Sputtering
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Dielectric and Magnetic Properties of BaTiO₃/NiFe₂O₄ Composites
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Dielectric Properties of Pb(Zr,Ti)O₃ Heterolayered Thick Films Fabricated by Screen-Printing Method
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Fabrication and Electrical Conductivity of a YSZ-NiCr Cermet
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Degradation Aging of BaTiO₃ Microwave Ceramic Capacitors for EMI Applications at High-Voltage

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 °C for 1 h and then 125°C for 1 h), damp heat (100% RH at 40°C for 500 h), and, endurance at high temperature (DC 10 kV at 100°C 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.