The effect of Zn2+ deficiency on ordered micro-regions and dielectric properties of Pb(Zn1/3Nb2/3)O3-based relaxor ceramics

被引：0
|
作者：
Qu, Shaobo [1 ,2 ]
Wang, Binke [2 ]
Liu, Zhiyi [2 ]
Pei, Zhibin [2 ]
Xu, Zhuo [1 ]
机构：
[1] Air Force Engn Univ, Coll Sci, Xian 710051, Peoples R China
[2] Xi An Jiao Tong Univ, Key Lab Educ Minist, Elect Mat Res Lab, Xian 710049, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS IV, PTS 1-3 | 2007年 / 336-338卷
基金：
美国国家科学基金会;
关键词：
relaxor ferroelectrics; ordered micro-region; dielectric property; Rmman spectra;
D O I：
10.4028/www.scientific.net/KEM.336-338.27
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
0.85Pb(Zn1/3Nb2/3)O-3-0.10BaTiO(3)-0.05PbTiO(3) (abbreviated as PZN-based ceramics hereafter) ternary system ceramics with Zn2+ deficiency were synthesized by the columbite method. The effect of deficient Zn2+ on phase structure, ordered micro-region size and dielectric properties was investigated in detail. The analysis of Raman scattering spectra demonstrated that Zn2+ deficiency sharply enlarged the ordered micro-region size. Zn2+ deficiency significantly increased the dielectric constant, and decreased the diffusion degree of phase transition. There is a close correlation between effective ordered micro-regions size and dielectric properties for the PZN-based ceramics.
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页码：27 / +
页数：2
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