Phase transformation and dielectric properties in Ba1-xLaxZr0.1Ti0.9O3 ceramics

被引：13

作者：

Huang, Xia ^{[1
]}

Zhang, Jingji ^{[1
]}

Ji, Ludong ^{[1
]}

Qi, Hongfang ^{[1
]}

Wang, Jiangying ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 592卷

关键词：

Perovskite structure; Phase transformation; Relaxor behavior; Strain behavior; BEHAVIOR; FERROELECTRICS; STRAIN; BA(ZRXTI1-X)O-3; SUBSTITUTION;

D O I：

10.1016/j.jallcom.2014.01.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ba1-xLaxZr0.1Ti0.9O3 ceramics have been prepared by the mixed-oxide route, and their structure and dielectric properties have been investigated. Results showed that La3+ ions entered the unit cell maintaining the perovskite structure. The evolution of dielectric behavior from a sharp dielectric peak with pinched phase transitions (x = 0.00) to a broad dielectric peak with frequency dependence (0.01 <= x <= 0.02) and successively to a ferroelectric relaxor (x = 0.05) was observed with increasing La concentration. Furthermore, remnant polarization and strain decreased due to phase transformation from ferroelectric tetragonal to paraelectric pseudocubic at room temperature. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：105 / 108

页数：4

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