Low-temperature sintering, structure transition and dielectrical properties of Ba0.85Ca0.15Ti0.9Zr0.1O3 with Na0.5Bi0.5TiO3 addition

被引：5
作者：
Yao, Mouteng [1 ]
Pu, Yongping [1 ]
Gao, Ziyan [1 ]
Zheng, Hanyu [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Solid state method; Perovskite; Diffuse phase transition; Ba0.85Ca0.15Ti0.9Zr0.1O3; HIGH PIEZOELECTRIC COEFFICIENT; RELAXOR BEHAVIOR; CERAMICS; RANGE; RAMAN;
D O I：
10.1016/j.ceramint.2016.03.226
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：
Na0.5Bi0.5TiO3-modified Ba0.85Ca0.15Ti0.9Zr0.1O3 ceramics were prepared by solid state route and their structural and dielectric properties were investigated. The sintering temperature of BCTZ ceramics has been significantly decreased from 1460 degrees C to 1280 degrees C with NBT addition. All samples showed a pure perovskite structure and a stable solid solution has been formed between BCTZ and NBT. Some tetragonal phase gradually transformed to rhombohedral or cubic phase with the addition of NBT. Dielectric peak gradually becomes broader, revealing that the diffuser behavior was enhanced. The prominent superimposed loss peaks related to thermally activated relaxation process. The values of activation energy of the relaxation process are 1.034, 1.285, 1.308 and 1353 eV, which could be associated with the migration of oxygen vacancies. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：10922 / 10928
页数：7
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