Effects of Nd-substitution on microstructures and dielectric characteristics of CaCu3Ti4O12 ceramics

被引：0
|
作者：
Ying Wang
Lei Ni
Xiang Ming Chen
机构：
[1] Zhejiang University,Laboratory of Dielectric Materials, Department of Materials Science and Engineering
[2] Chang’an University,School of Materials Science and Engineering
来源：
Journal of Materials Science: Materials in Electronics | 2011年 / 22卷
关键词：
Dielectric Constant; Dielectric Loss; Dielectric Relaxation; Relaxation Peak; Dielectric Characteristic;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ca1−3x/2NdxCu3Ti4O12 (x = 0, 0.1, 0.2) ceramics were prepared by a solid state reaction process, and single-phased structures were obtained for all the compositions. The dielectric characteristics of pure and Nd-substituted CaCu3Ti4O12 ceramics were investigated together with the microstructures. The mixed-valent structures of Cu+/Cu2+ and Ti3+/Ti4+ in the present ceramics were confirmed by X-ray photoelectron analysis. The dielectric relaxation in the low temperature range was examined in detail and the variation of dielectric constant and dielectric loss was attributed to the modification mixed-valent structures.
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页码：345 / 350
页数：5
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