Dielectric properties of Zr-doped CaCu3Ti4O12 Ceramics

摘要：

　　CaCu3(Ti1-xZrx)O12 ceramics (x =0.02,0.04,0.06,0.08) were prepared by the conventional solid-state reaction method.Phase compositions,microstructure and dielectric properties were examined by XRD,SEM and impedance spectroscopy,respectively.The experimental results indicated that there is no obvious effect on microstructure characteristic by substituting Zr4+ for Ti4+.It was found that the values of the dielectric constant for all of the samples dropped into the order of 102,which is significantly lower than the order of 105 that of normally reported in the literature.It was suggested that the presence of impurity phases played an important role for the degeneracy of dielectric properties.

关键词： CaCu3Ti4O12 Giant dielectric constant Zr-doped

作者: Yong He Kepi Chen Dongyu Liu Zongde Liu

作者单位: School of Energy and Power Engineering,Key Laboratory of Condition Monitoring and Control for Power Plant Equipment(North China Electric Power University),Ministry of Education,Beijing 102206,P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 129-131

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）