Field induced strain response of lead-free BaZrO3-modified Bi0.5Na0.5TiO3-BaTiO3 ceramics

被引：71

作者：

Rahman, Jamil Ur ^{[1
]}

Hussain, Ali ^{[1
]}

Maqbool, Adnan ^{[1
]}

Ryu, Gyung Hyun ^{[1
]}

Song, Tae Kwon ^{[1
]}

Kim, Won-Jeong ^{[2
]}

Kim, Myong Ho ^{[1
]}

机构：

[1] Changwon Natl Univ, Sch Adv Mat Engn, Gyeongnam 641773, South Korea

[2] Changwon Natl Univ, Dept Phys, Gyeongnam 641773, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 593卷

基金：

新加坡国家研究基金会;

关键词：

BNT-BT-BZ; Dielectric; Ferroelectric; Piezoelectric; Field-induced strain; DEPENDENT ELECTRICAL-PROPERTIES; DEPOLARIZATION TEMPERATURE; DIELECTRIC-PROPERTIES; BEHAVIOR;

D O I：

10.1016/j.jallcom.2014.01.031

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：

Lead-free (0.935-x)[Bi0.5Na0.5TiO3-0.065BaTiO(3)]-xBaZrO(3) (BNBT-xBZ, with x = 0-0.07) ceramics were prepared by a conventional solid-state reaction method. The effect of BZ addition on the crystal structure, microstructure, dielectric, ferroelectric and electric field induced strain behavior of BNBT ceramic was investigated. X-ray diffraction patterns of BNBT-xBZ ceramics revealed the formation of single phase perovskite structure in the studied composition range. Addition of BZ in BNBT transform the crystal structure from tetragonal to pseudocubic symmetry. However, with increasing BZ content, the maximum dielectric constant decreased and the dielectric maximum temperature (T-m) shifted towards lower temperature. The field induced strain response of BNBT-xBZ increases from 0.16% for x = 0 to 0.38% for x = 0.03, at an applied field of 7 kV/mm. The corresponding dynamic piezoelectric coefficient for these composition were (S-max/E-max = 231 pm/V) and (S-max/E-max = 542 pm/V), respectively. These results suggest that the BNBT-0.03BZ ceramic can be considered as a promising candidate material for piezoelectric application. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：97 / 102

页数：6

共 37 条

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