Dielectric properties and electrical conductivity of CaCu3Ti4O12 ceramics doped with Zr4+

被引：8

作者：

Su Yanli ^{[1
]}

Zhang Wenqin ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2013年 / 28卷 / 02期

关键词：

CaCu3Ti4O12; sintering; dielectric properties; electrical conductivity; THIN-FILMS; CONSTANT; DEVICES; NB;

D O I：

10.1007/s11595-013-0691-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CaCu3Ti4O12 (CCTO) ceramics doped with Zr4+ were prepared. Effects of Zr4+ on microstructure, dielectric properties and conduction behavior of CaCu3Ti4-x Zr (x) O-12 (x=0, 0.05, 0.10, 0.20) ceramics were studied in the frequency range of 10-10(6) Hz. Grain size and dielectric loss of Zr4+-doped CCTO ceramic decreased compared with pure CCTO. The loss tangent (tan delta) of CaCu3Ti4-x Zr (x) O-12 (x=0.20) ceramic droped to 0.05 at a frequency of 1 kHz, which was reduced by 55% compared with pure CCTO ceramic. The mechanism effect of electrical conductivity on dielectric loss of Zr4+-doping CCTO ceramics was also discussed.

引用

页码：343 / 346

页数：4

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