Piezoelectric behavior of (1-x)K0.50Na0.50NbO3-xBa0.80Ca0.20ZrO3 lead-free ceramics

被引：19

作者：

Chen, Tao ^{[1
]}

Wang, Hongli ^{[2
]}

Zhang, Ting ^{[1
]}

Wang, Guangchang ^{[1
]}

Zhou, Jifang ^{[1
]}

Zhang, Jianwei ^{[1
]}

Liu, Yuhong ^{[1
]}

机构：

[1] Chengdu Med Coll, Teaching & Res Sect Phys, Chengdu 610083, Peoples R China

[2] Chengdu Med Coll, Teaching & Res Sect Chem, Chengdu 610083, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 06期

关键词：

Piezoelectric properties; (K; Na)NbO3; Lead-free ceramics; TEMPERATURE; NIOBATE;

D O I：

10.1016/j.ceramint.2013.01.098

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：

(1-x)K(0.50)Na(0.50)NbO(3-)xBa(0.80)Ca(0.20)ZrO(3) [(1 x)KNN-xBCZ] lead-free ceramics were prepared by the conventional solid-state method, and the effect of BCZ content on their phase structure and piezoelectric properties was studied. A coexistence of rhombohedral-orthorhombic phases was identified in the range 0.04 < x < 0.08. With increasing the BCZ content, their grain size becomes smaller, and their Curie temperature gradually decreases. An optimum piezoelectric behavior of d(33)similar to 197 pC/N and k(p) similar to 40.6% was demonstrated in the ceramic with x=0.06 because of the coexistence of two phases. As a result, the introduction of BCZ could further improve piezoelectric properties of KNN ceramics. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：6619 / 6622

页数：4

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