Dielectric dispersion and impedance spectroscopy of B3+-doped Ba(Ti0.9Sn0.1)O3 ceramics

被引：6
|
作者：
Tawichai, Nattaya [1 ]
Sutjarittangtham, Krit [2 ]
Tunkasiri, Tawee [2 ]
Pengpat, Kamonpan [2 ]
Rujijanagul, Gobwute [2 ]
Wang, John [3 ]
机构：
[1] Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand
[2] Chiang Mai Univ, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand
[3] Natl Univ Singapore, Dept Mat Sci & Engn, Fac Engn, Singapore 117548, Singapore
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷
关键词：
Sintering; Ferroelectric properties; Impedance spectroscopy;
D O I：
10.1016/j.ceramint.2012.10.051
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：
In this study, the B2O3 doped Ba(Ti0.9Sn0.1)O-3 ceramics were prepared by using a solid state reaction method. Wide ranges of.. frequency (0.1 Hz to 1 MHz) and temperature (20-280 degrees C) dependence of the impedance relaxation were investigated. The impedance study indicates the presence of both dielectric relaxation in bulk and grain boundary effects in the material. The relaxation times for grain and grain boundary estimated from Cole Cole plots varied with temperature according to the Arrhenius relation. The activation energy for grain and grain boundary were estimated to be 0.73 and 0.85 eV, respectively. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：S145 / S148
页数：4
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