Relaxor behavior of Sr1-xBaxBi2Nb2O9 ceramics

被引：40

作者：

Huang, SM ^{[1
]}

Feng, CD ^{[1
]}

Chen, LD ^{[1
]}

Wang, Q ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2006年 / 89卷 / 01期

关键词：

D O I：

10.1111/j.1551-2916.2005.00662.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：

Sr1-xBaxBi2Nb2O9 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1) ceramics were prepared by a conventional solid-state reaction method. Their structure and dielectric properties were investigated. X-ray diffraction analysis indicated that single-phase layered perovskites were obtained. A relaxor behavior was observed in Ba-substituted SrBi2Nb2O9. The temperature of the maximum dielectric constant T-m decreases linearly with increasing Ba content (x) up to x = 0.6, and only a little decrease in T. is observed when 0.6 < x < 0.8. However, there is a little increase in T-m when 0.8 < x <= 1.0. The degree of frequency dispersion Delta T-m, which is the T-m difference between 1 kHz and 1 MHz, increases from 0 degrees C for x = 0 to 110 degrees C for x = 1.

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页码：328 / 331

页数：4

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