High piezoelectric coefficient of Pr2O3-doped Ba0.85Ca0.15Ti0.90Zr0.10O3 ceramics

被引：75

作者：

Han, Chao ^{[1
]}

Wu, Jiagang ^{[1
]}

Pu, Chaohui ^{[2
]}

Qiao, Sha ^{[1
]}

Wu, Bo ^{[1
]}

Zhu, Jianguo ^{[1
]}

Xiao, Dingquan ^{[1
]}

机构：

[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2012年 / 38卷 / 08期

基金：

美国国家科学基金会;

关键词：

Lead-free ceramics; (Ba; Ca)(Ti; Zr)O-3; Piezoelectric properties; LEAD-FREE PIEZOCERAMICS; ELECTRICAL-PROPERTIES; TEMPERATURE; MICROSTRUCTURE;

D O I：

10.1016/j.ceramint.2012.05.008

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：

Pr2O3-doped Ba0.85Ca0.15Ti0.90Zr0.10O3 (BCTZ-xPr) ceramics were prepared by the conventional solid-state method. A tetragonal phase is only observed in these ceramics, and the introduction of Pr2O3 decreases their sintering temperature without affecting negatively the piezoelectric constant. Enhanced ferroelectric properties were obtained in these BCTZ-xPr ceramics. The ceramic with x=0.06 wt% exhibits a good electrical behavior of d(33)similar to 460 pC/N, k(p)similar to 47.6%, epsilon(r)similar to 4638, and tan delta similar to 0.015 when sintered at a low temperature of similar to 1400 degrees C. As a result, the BCTZ-xPr ceramic is a promising candidate for lead-free piezoelectric ceramics. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：6359 / 6363

页数：5

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