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《Materials Review》 2007-S2
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Microwave Sintering of Zinc Oxide Varistors in Different Atmospheres

LIN Cong,GUO Fangfang,LI Zhijie,XU Zheng,PENG Hu ( School of Material Science and Engineering, Tongji University, Shanghai 200092; Changsha LongTech Syno-therm Co., Ltd., Hunan 410013)  
ZnO varistors are prepared in different atmospheres including air, N2 and O2 by microwave sintering processes. The microstructures and electrical properties of samples sintered in three kinds of atmospheres are investigated. And the interactions between microwave and materials in different atmospheres are discussed. The results show that in lower temperature ZnO varistors sintered in rich-N2 atmosphere are more easily densified than in O,. However, the electrical properties of samples sintered in N2 abruptly degrade above 1000℃because of the deterioration of densification in the high temperature.
【CateGory Index】: TF124.5
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Chinese Journal Full-text Database 2 Hits
1 XIA Guangbin,LIN Cong, GUO Fangfang, LI Zhijie, XU Zheng,PENG Hu (Department of Material Science and Engineering, Tongji University, Shanghai 200092; Changsha Longtech Syno-Therm Co,Ltd, Changsha 410013);Electric Properties of Microwave Sintered ZnO Varistors[J];Materials Review;2007-S2
2 XU Dong1,SHI Li-yi1,2,WU Zhen-hong2,FANG Jian-hui2(1.School of Material Science and Engineering,Shanghai University,Shanghai 200072,China; 2.Research Center of Nano Science and Technology,Shanghai University,Shanghai 200444,China);Research Progress of Microwave-sintered Zinc Oxide Varistors[J];Insulators and Surge Arresters;2007-05
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