Enhanced d33 value in HfO2-modified (Ba0.98Ca0.02)(Ti0.94Sn0.06)O3 ceramics

被引：11

作者：

Wu, Jiagang ^{[1
]}

Wang, Tao ^{[1
]}

Cheng, Xiaojing ^{[1
]}

Wang, Xiaopeng ^{[1
]}

Zhang, Binyu ^{[1
]}

Zhu, Jianguo ^{[1
]}

Xiao, Dingquan ^{[1
]}

机构：

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 576卷

基金：

美国国家科学基金会;

关键词：

Lead-free ceramic; BCTS; Piezoelectricity; HfO2; LEAD-FREE CERAMICS; FREE PIEZOELECTRIC CERAMICS; COEFFICIENT; BEHAVIOR;

D O I：

10.1016/j.jallcom.2013.04.099

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：

In this work, the HfO2 has been used to improve the piezoelectric behavior of (Ba0.98Ca0.02)(Ti0.94Sn0.06)O-3 (BCTS) lead-free ceramics prepared by the conventional solid-state method. The addition of HfO2 cannot change the phase structure of BCTS ceramics, showing the formation of an orthorhombic phase. A dense microstructure has been developed by doping a small amount of HfO2. The BCTS ceramic with 0.10 wt% has an enhanced electrical behavior of d(33) similar to 430 pC/N, k(p) similar to 48.0%, and tan delta similar to 1.1%. Therefore, it is an effective way to improve the piezoelectric properties of BaTiO3-based ceramics by the addition of HfO2. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：299 / 301

页数：3

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