Dielectric Properties and Electrical Conductivity of CaCu3Ti4O12 Ceramics Doped with Zr4+
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第2期
论文作者：苏艳丽 ZHANG Wenqin
文章页码：343 - 346
摘 要：CaCu3Ti4O12 （CCTO） ceramics doped with Zr4+ were prepared. Effects of Zr4+ on microstructure, dielectric properties and conduction behavior of CaCu3Ti4-xZrxO12 （x=0, 0.05, 0.10, 0.20） ceramics were studied in the frequency range of 10-106 Hz. Grain size and dielectric loss of Zr4+-doped CCTO ceramic decreased compared with pure CCTO. The loss tangent （tanδ） of CaCu3Ti4-xZrxO12 （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.
苏艳丽，ZHANG Wenqin
College of Chemistry, Chemical Engineering and Material Science, Soochow University
摘 要：CaCu3Ti4O12 （CCTO） ceramics doped with Zr4+ were prepared. Effects of Zr4+ on microstructure, dielectric properties and conduction behavior of CaCu3Ti4-xZrxO12 （x=0, 0.05, 0.10, 0.20） ceramics were studied in the frequency range of 10-106 Hz. Grain size and dielectric loss of Zr4+-doped CCTO ceramic decreased compared with pure CCTO. The loss tangent （tanδ） of CaCu3Ti4-xZrxO12 （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.
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