Electrical Properties of Ca-modified Na0.5Bi0.5TiO3-BaTiO3 ceramics

被引：17

作者：

Jan, Saeed Ullah ^{[1
]}

Zeb, Aurang ^{[1
]}

Milne, Steven J. ^{[1
]}

机构：

[1] Univ Leeds, Inst Mat Res, Leeds LS2 9JT, W Yorkshire, England

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 10期

关键词：

Dielectric properties; Piezoelectric properties; Perovskites; BaTiO3 and titanates; PHASE-TRANSITIONS; DIELECTRIC-PROPERTIES; BARIUM-TITANATE; BEHAVIOR; SYSTEM; TEM;

D O I：

10.1016/j.ceramint.2014.06.107

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：

Ceramics in the system (1-x)Na0.5Bi0.5TiO3-xBa(0.80)Ca(0.20)TiO(3) demonstrate a phase boundary between pseudo-cubic and tetragonal at 0.1 < x < 0.2. There was a gradual convergence in the temperatures of a frequency-dependent inflection and peak in relative permittivity-temperature plots with increasing x: for x=0.5 and 0.6, normal relaxor-like behaviour was observed, with T-m similar to 150 degrees C (1 kHz). Constriction in the polarisation-electric field hysteresis loops for the phase boundary composition x=0.1 was consistent with an electric field-induced phase transition, giving rise to an electromechanical strain, similar to 0.25 % at 40 kV/cm and high-field d(33)* similar to 640 pm/V. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：15439 / 15445

页数：7

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