Structure and dielectric properties of non-stoichiometric Bi2O3-ZnO-Nb2O5 ceramics

被引：1

作者：

Qiao, H. W. ^{[1
]}

Yang, T. Q. ^{[1
]}

Xu, Q. H. ^{[1
]}

Yao, X. ^{[1
]}

机构：

[1] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China

来源：

FERROELECTRICS | 2007年 / 356卷

关键词：

dielectric relaxation; cubic pyrochlore; non-stoichiometric;

D O I：

10.1080/00150190701508811

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi-based ceramics with pyrochlore structure exhibit interesting microwave dielectric properties such as high dielectric constant and low firing temperature. Structure and dielectric properties of non-stoichiometric ceramics Bi(1.5)ZnNb(1.5-x),O(7-2.5x) (x = -0.344 similar to 0.13) were investigated. Dielectric properties are usually proportional to the polarizability of the constituents. The experimental results show that dielectric constant increase linearly the x value. The dielectric relaxation and defect resulting from non-stiochiometric ceramics Bi(1.5)ZnNb(1.5-x)O(7-2.5x) were discussed.

引用

页码：300 / 304

页数：5

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