Sintering and Nonlinear Dielectric Properties of Ba0.6Sr0.4TiO3 Ceramics Prepared by Citrate Method

被引：0

作者：

Zhang, Xiao-Fei ^{[1
]}

Xu, Qing ^{[1
]}

Chen, Wen ^{[1
]}

Liu, Han-Xing ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

来源：

PRICM 7, PTS 1-3 | 2010年 / 654-656卷

关键词：

Citrate method synthesis; Ba0.6Sr0.4TiO3; ceramics; ferroelectrics; nonlinear dielectric properties;

D O I：

10.4028/www.scientific.net/MSF.654-656.1994

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：

Ba0.6Sr0.4TiO3 powder was synthesized by a citrate method. The powder with a pure pervoskite phase and superfine particle morphology was produced at low calcining temperature of 550 degrees C by controlling heating rate during the calcination. Microstructure and nonlinear dielectric properties of the ceramic specimens were investigated with respect to sintering temperature. It was found that the superfine morphology of the powder effectively reduced the sintering temperature of the ceramic specimens. The ceramic specimen sintered at 1260 degrees C attained about 95% of the theoretical density. At room temperature, the ceramic specimen showed a dielectric constant of 3010 and a dielectric loss of 0.48% at 10 kHz together with a tunability of 32.4% at 10 kHz and 20 kV/cm.

引用

页码：1994 / 1997

页数：4

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