Electrical properties of (1-x)(Bi0.5Na0.5)TiO3-xKNbO3 lead-free ceramics

被引：37

作者：

Jiang, Xijie ^{[1
]}

Wang, Baoyin ^{[1
]}

Luo, Laihui ^{[1
]}

Li, Weiping ^{[1
]}

Zhou, Jun ^{[1
]}

Chen, Hongbing ^{[2
]}

机构：

[1] Ningbo Univ, Dept Microelect Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China

[2] Ningbo Univ, Inst Mat Sci & Engn, State Key Base Novel Funct Mat & Its Preparat Sci, Ningbo 315211, Zhejiang, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2014年 / 213卷

关键词：

Lead-free ceramic; Piezoelectric; Dielectric; Depolarization; Strain; PIEZOELECTRIC PROPERTIES; BEHAVIOR;

D O I：

10.1016/j.jssc.2014.01.022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this investigation, a simple compound (1 - x)(Bi0.5Na0.5)TiO3-xKNbO(3) (BNT-xKN, x=0-0.08) lead-free ceramics were synthesized successfully by conventional solid state reaction method. The piezoelectric, dielectric and ferroelectric characteristics of the ceramics were investigated and discussed. The results shows that moderate KN addition can enhance the piezoelectric response without an obvious decline of ferroelectric properties. The largest piezoelectric response is obtained in BNT-0.05KN, whereas largest electric-field-induced strain is obtained in BNT-0.06KN. An effective d(33)(eff) of similar to 400 pC/N calculated from electric-field-induced strain is obtained in BNT-0.06KN. The present investigation demonstrates that addition KN effectively reduces the depolarization temperature of the BNT-xKN ceramics. The electrical properties of the ceramics are tightly related to their depolarization temperature. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：72 / 78

页数：7

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