Effects of SiO2/Cr2O3 ratios on microstructures and electrical properties of high voltage gradient ZnO varistors

The effect of various proportions of SiO 2 and Cr 2 O 3 doping on the micro-characteristics and the electrical properties of the ZnO varistors were investigated. As the SiO 2 /Cr 2 O 3 ratio increased, the voltage gradient increased and then decreased, the nonlinear coefficient α increased, while th...

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Veröffentlicht in:	Journal of materials science. Materials in electronics 2019-07, Vol.30 (13), p.12113-12121
Hauptverfasser:	Ruan, Xuejun, Ren, Xin, Zhou, Wenting, Xu, Xi, Wang, Xin, Wang, Manyu, Yan, Ying, Yao, Zheng, Shi, Wen, Yu, Wenqi
Format:	Artikel
Sprache:	eng
Schlagworte:	Aging Characterization and Evaluation of Materials Chemistry and Materials Science Chromium oxides Electric potential Electric power distribution Electrical properties Electronic devices Grain boundaries Grain growth Grain size High voltages Industrial applications Leakage current Materials Science Metal oxides Optical and Electronic Materials Polyvinyl alcohol Silicon dioxide Sintering Square waves Varistors Wave power Zinc oxide Zinc oxides
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