Influences of Sintering Temperature on Microstructure and Electrical Properties of TiO2 Varistor Ceramics

被引：1
|
作者：
Chen, Yanyan [1 ]
Zou, Ming [2 ]
Wang, Yuan [1 ]
Zhang, Yun [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, South Rd 3rd Section, Chengdu 610064, Peoples R China
[2] Panzhihua Coll, Dept Chem & Biochem Engn, Panzhihua 617000, Peoples R China
来源：
CHINESE CERAMICS COMMUNICATIONS | 2010年 / 105-106卷
关键词：
TiO2 varistors ceramics; Sintering temperature; TA2O5;
D O I：
10.4028/www.scientific.net/AMR.105-106.317
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：
Influences of sintering temperature on microstructure and electrical properties of TiO2 varistor ceramics were investigated. Morphologies of TiO2 ceramics samples were characterized using scanning electron microscope. The phase composition and crystal structure were researched by X-ray diffraction. The frequency dependences of the samples capacitance were determined using LCR meter, the varistor voltage V-1mA and nonlinear coefficient a were discussed by experimental method. The results showed that TiO2 ceramics sintered at 1350 degrees C for 2 h possesses fine microstructure and optimal electrical properties. However, the electrical properties of samples will deteriorate as excessive sintering temperature.
引用
收藏
页码：317 / +
页数：2
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