Ferroelectric and piezoelectric properties of SrZrO3-modified Bi0.5Na0.5TiO3 lead-free ceramics

被引：25
作者：
Maqbool, Adnan [1 ]
Hussain, Ali [1 ]
Rahman, Jamil Ur [1 ]
Park, Jong Kyu [1 ]
Park, Tae Gone [1 ]
Song, Jae Sung [2 ]
Kim, Myong Ho [1 ]
机构：
[1] Changwon Natl Univ, Engn Res Ctr Integrated Mechatron Mat & Component, Gyeongnam 641773, South Korea
[2] Korea Electrotechnol Res Inst, Gyeongnam 641773, South Korea
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2014年 / 24卷
基金：
新加坡国家研究基金会;
关键词：
lead-free ceramics; BNT; perovskite structure; field induced strain; PHASE-TRANSITION TEMPERATURES; ELECTRICAL-PROPERTIES; DEPOLARIZATION TEMPERATURE; DIVALENT;
D O I：
10.1016/S1003-6326(14)63302-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The lead-free SrZrO3-modified Bi0.5Na0.5TiO3 (BNT-SZ100x, with x=0-0.15) ceramics were fabricated by a conventional solid-state reaction method. The effects of SZ addition on BNT ceramics were investigated through X-ray diffraction (XRD), scanning electron microscopy (SEM), ferroelectric and electric field-induced strain characterizations. XRD analysis revealed a pure perovskite phase without any traces of secondary phases. Ferroelectric and bipolar field induced-strain curves indicated a disruption of ferroelectric order upon SZ addition into BNT ceramics. A maximum value of remnant polarization (32 mu C/cm(2)) and piezoelectric constant (102 pC/N) was observed at 5% (mole fraction) of SZ. Maximum value of the electric field-induced strain (S-max=0.24%) corresponding to normalized strain (S-max/E-max=d*(33)=340 pm/V) was obtained at BNT-SZ9.
引用
收藏
页码：S146 / S151
页数：6
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