Large Piezoelectric Coefficient in (Ba1-xCax)(Ti0.96Sn0.04)O3 Lead-Free Ceramics

被引：88

作者：

Li, Wei ^{[1
]}

Xu, Zhijun ^{[1
]}

Chu, Ruiqing ^{[1
]}

Fu, Peng ^{[1
]}

Zang, Guozhong ^{[1
]}

机构：

[1] Liaocheng Univ, Coll Mat Sci & Engn, Liaocheng 252059, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2011年 / 94卷 / 12期

关键词：

Electromechanical coupling - Ceramic materials - Solid state reactions - Couplings;

D O I：

10.1111/j.1551-2916.2011.04888.x

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：

Lead-free (Ba-1 Ca-x(x))(Ti0.96Sn0.04)O-3 (BCST) (x=0-0.04) ceramics were prepared using solid-state reaction technique. At room temperature, a polymorphic phase transition from orthorhombic phase to tetragonal phase was identified in the composition range of 0.01 <= x <= 0.03. Extremely high piezoelectric coefficient of d(33)=510pC/N and high planar electromechanical coupling factor of k(p)=48% were obtained for the BCST ceramics at x=0.02. These results indicate that the BCSTs are promising candidates for the widely used lead-based piezoelectric materials.

引用

页码：4131 / 4133

页数：3

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