Relaxation Behavior of Zr Substituted CaCu3Ti4O12 Ceramics

被引：1
|
作者：
Yu, Hongtao [1 ]
Zhang, Wenbo [1 ]
Liu, Jingsong [1 ]
Liu, Hanxing [2 ]
机构：
[1] SW Univ Sci & Technol, State Key Lab Cultivat Base Nonmet Composites & F, Mianyang 621010, Peoples R China
[2] Wuhan Univ Technol, State Key Lab Adv Technol, Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
FUNCTIONAL AND ELECTRONIC MATERIALS | 2011年 / 687卷
关键词：
CaCu3Ti4O12 (CCTO); Zr; Relaxation behavior; Impedance spectra; HIGH-DIELECTRIC-CONSTANT; BOUNDARY;
D O I：
10.4028/www.scientific.net/MSF.687.375
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The dielectric properties of Zr substituted CaCu3Ti4O12 ceramics have been investigated in detail. Grain size decreases with Zr content increasing. The hetero-electrical microstructures of prepared samples have been confirmed by the impedance spectra. The dielectric loss has been improved by Zr doping because of the enhancement of grain boundary resistivity. A Debye-like boundary relaxation behavior has been observed in the temperature range of 220-600K. As Zr content increases, the relaxation time increases due to the higher grain boundary concentration. This work has provided an additional proof for the origin of giant dielectric response in CaCu3Ti4O12 ceramics.
引用
收藏
页码：375 / +
页数：2
相关论文
共 50 条
  • [21] Investigation on Relaxation Properties of Deep Bulk Trap in CaCu3Ti4O12 ceramics
    Yang Yan
    Li Sheng-Tao
    Li Xiao
    Wu Gao-Lin
    Wang Qian
    Bao Ming-Hui
    JOURNAL OF INORGANIC MATERIALS, 2012, 27 (11) : 1185 - 1190
  • [22] Role of Relaxation on the Giant Permittivity and Electrical Properties of CaCu3Ti4O12 Ceramics
    Zhao, Xuetong
    Ren, Lulu
    Liao, Ruijin
    Li, Jianying
    Yang, Lijun
    Wang, Feipeng
    JOURNAL OF ELECTRONIC MATERIALS, 2016, 45 (06) : 3079 - 3086
  • [23] Role of Relaxation on the Giant Permittivity and Electrical Properties of CaCu3Ti4O12 Ceramics
    Xuetong Zhao
    Lulu Ren
    Ruijin Liao
    Jianying Li
    Lijun Yang
    Feipeng Wang
    Journal of Electronic Materials, 2016, 45 : 3079 - 3086
  • [24] Effect of Platinum Substitution on the Microstructures and Dielectric Relaxation of CaCu3Ti4O12 Ceramics
    Makcharoen, Worawut
    ADVANCES IN MATERIAL SCIENCE AND TECHNOLOGY, 2013, 802 : 134 - 138
  • [25] Polaron relaxation and non-ohmic behavior in CaCu3Ti4O12 ceramics with different cooling methods
    Liu, Laijun
    Shi, Danping
    Zheng, Shaoying
    Huang, Yanmin
    Wu, ShuangShuang
    Li, Yunhua
    Fang, Liang
    Hu, Changzheng
    MATERIALS CHEMISTRY AND PHYSICS, 2013, 139 (2-3) : 844 - 850
  • [26] EELS characterisation of bulk CaCu3Ti4O12 ceramics
    Calvert, Clair C.
    Rainforth, W. Mark
    Sinclair, Derek C.
    West, Anthony R.
    MICRON, 2006, 37 (05) : 412 - 419
  • [27] Microstructures and electrical properties of CaCu3Ti4O12 ceramics
    Shao Shou-Fu
    Zheng Peng
    Zhang Jia-Liang
    Niu Xiao-Kun
    Wang Chun-Lei
    Zhong Wei-Lie
    ACTA PHYSICA SINICA, 2006, 55 (12) : 6661 - 6666
  • [28] CaCu3Ti4O12 Ceramics Prepared by Coprecipitation Method
    Yang Yan
    Li Sheng-Tao
    JOURNAL OF INORGANIC MATERIALS, 2010, 25 (08) : 835 - 839
  • [29] A novel technique for the synthesis of CaCu3Ti4O12 ceramics
    Sen, S.
    Sahu, P.
    Prasad, K.
    MATERIALS SCIENCE-POLAND, 2010, 28 (01): : 265 - 271
  • [30] Microstructure and electrical properties of CaCu3Ti4O12 ceramics
    Shao, S. F.
    Zhang, J. L.
    Zheng, P.
    Zhong, W. L.
    Wang, C. L.
    JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
12345