Bi2O3 vaporization in microwave-sintered ZnO varistors

被引：12

作者：

Cong, Lin ^{[1
]}

Zheng, Xu

Hu, Peng

Dan-Feng, Sun

机构：

[1] Tongji Univ, Dept Mat Sci & Engn, Shanghai 200092, Peoples R China

[2] Changsha Longtech Synotherm Co Ltd, Changsha 410013, Hunan, Peoples R China

[3] Suzhou Sinotronix Elect Co Ltd, Suzhou 215011, Jiangsu, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2007年 / 90卷 / 09期

关键词：

D O I：

10.1111/j.1551-2916.2007.01848.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Vaporization of Bi2O3 in microwave-sintered ZnO varistors is discussed in this study. The Bi2O3 vaporization of ZnO varistors sintered by a conventional electric furnace is also studied for comparison. The results show that the Bi2O3 vaporization in microwave-sintered ZnO varistors is more homogenous from the surface to the inside of the sample, which results from the special thermal gradient inside the microwave-sintered samples, and we also find out that the Bi2O3 vaporization directly affects the electrical properties of ZnO varistors. Microwave-sintered samples exhibit more excellent electrical properties than the conventional ones because the homogenous Bi2O3 vaporization leads to more uniform microstructures.

引用

页码：2791 / 2794

页数：4

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