Influence of different nano titania on microstructure and electrical properties of low voltage zinc oxide varistors

被引：5
|
作者：
Lin Cong [1 ]
Fan Zhuowei [1 ]
Xu Zheng [1 ]
Xu Yewen [1 ,2 ]
机构：
[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 200092, Peoples R China
[2] First Engineers Sci Res Inst, Gen Armaments Dept, Wuxi 214035, Peoples R China
来源：
JOURNAL OF ELECTROCERAMICS | 2008年 / 21卷 / 1-4期
关键词：
Porosity; Dispersing state; Electrical properties; Morphology; Voltage gradient;
D O I：
10.1007/s10832-007-9219-y
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：
A series of check experiments showed that ZnO varistors doped with TiO2 of different particle sizes and dispersing states have different densities, porosities and grain morphologies, which relate to their electrical properties tightly. Compared with samples added with TiO2 dopants of others types, the varistors added with nm-TiO2 sol exhibit large density, low porosity, big granular size, low breakdown voltage gradient and small leakage current. Hence nm-TiO2 sol dopant is the best grain growth enhancing additive for optimizing almost all the electrical parameters.
引用
收藏
页码：423 / 426
页数：4
相关论文
共 50 条
12345