Large piezoelectric effect in (1-x)Ba(Zr0.15Ti0.85)O3-x(Ba0.8Sr0.2)TiO3 lead-free ceramics

被引：24

作者：

Liang, Dayun ^{[1
]}

Zhu, Xiaohong ^{[1
]}

Zhang, Yu ^{[1
]}

Shi, Wei ^{[2
]}

Zhu, Jiliang ^{[1
]}

机构：

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

[2] Tongren Coll, Sch Mat & Chem Engn, Tongren 554300, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Lead-free; Piezoceramics; Polymorphic phase transition; Piezoelectric coefficient; Dielectric permittivity; DIELECTRIC-PROPERTIES; ELECTRICAL-PROPERTIES; TEMPERATURE; COEFFICIENT; SYSTEM;

D O I：

10.1016/j.ceramint.2015.03.017

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：

A new type of lead-free piezoelectric ceramics (1 - x)Ba(Zr0.15Ti0.85)O-3-x(Ba0.8Sr0.2)TiO3 (abbreviated as BZT-xBST or BSZT) were designed and prepared using the traditional solid-state reaction technique. The polymorphic phase transition (PPT) from rhombohedral to tetragonal phase (R-7) was adjusted to room temperature through modifying the proportion of BZT and BST terminals. A high piezoelectric coefficient d(33)=450 pC/N and a high dielectric permittivity epsilon(r)=4070 were simultaneously demonstrated for the BSZT ceramic samples with x=0.70, indicating that the BSZT ceramics are promising candidates for lead-free piezoelectric applications. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：8261 / 8266

页数：6

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