Microstructure and electric properties of Nb doping x(Ba0.7Ca0.3)TiO3-(1-x)Ba(Zr0.2Ti0.8)O3 ceramics

被引：8
作者：
Zhang, C. H. [1 ,3 ]
Chi, Q. G. [1 ,2 ]
He, X. X. [2 ]
Lin, J. Q. [1 ,2 ]
Chen, Y. [1 ]
Liu, L. Z. [1 ,3 ]
Lei, Q. Q. [1 ]
机构：
[1] Harbin Univ Sci & Technol, Minist Educ, Key Lab Engn Dielect & Its Applicat, Harbin 150080, Peoples R China
[2] Harbin Univ Sci & Technol, Sch Appl Sci, Harbin 150080, Peoples R China
[3] Harbin Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 685卷
基金：
美国国家科学基金会;
关键词：
Powders: solid state reaction; Grain size; Structure; Electrical properties; BaTiO3 and titanates; LEAD-FREE PIEZOCERAMICS; FREE PIEZOELECTRIC CERAMICS; DIELECTRIC-PROPERTIES; THIN-FILMS; BEHAVIOR; TEMPERATURE; TITANATE; CALCIUM;
D O I：
10.1016/j.jallcom.2016.06.203
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：
In this paper, t mol% Nb2O5 doped x(Ba0.7Ca0.3)TiO3-(1-x)Ba(Zr0.2Ti0.8)O-3 [xBCT-(1-x)BZT-t mol% Nb2O5] lead-free piezoelectric ceramics were prepared successfully using a solid-state reaction technique. Firstly, the phase transition of xBCT-(1-x) BZT ceramics were investigated, and it was found that 0.47BCT-0.53BZT sample shows a rhombohedral (R)-tetragonal (T) phase transition at room temperature near Morphotropic Phase Boundary and presents better ferroelectric and piezoelectric properties compared with the other component ceramics. On this basis, the crystal structure, surface morphologies and electrical properties of the Nb2O5 doped 0.47BCT-0.53BZT ceramic were studied in detail. It was found the grain size increases monotonously and the microstructure become more denser and homogeneous when Nb-doping concentration increases above t = 0.3, and a maximum strain value of 0.132% was obtained at E = 20 kV/cm. Additionally, the excellent electric properties with a high remanent polarization (P-r = 8.3 mu C/cm(2)), a low coercive field (E-c = 1.55 kV/cm) were also obtained on 0.47BCT -0.53BZT-0.3 mol% Nb2O5 lead-free ceramics, which is promising for application in lead-free practical applications. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：936 / 940
页数：5
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共 30 条
[21]   Effects of CuO additive on structure and electrical properties of low-temperature sintered Ba0.98Ca0.02Zr0.02Ti0.98O3 lead-free ceramics [J].
Sun, Huajun ;
Zhang, Yong ;
Liu, Xiaofang ;
Liu, Yi ;
Chen, Wen .
CERAMICS INTERNATIONAL, 2015, 41 (01) :555-565
[22]   Effects of LiF on the Structure and Properties of Ba0.85Ca0.15Zr0.1Ti0.9O3 Lead-Free Piezoelectric Ceramics [J].
Tan, Chee Kiang Ivan ;
Yao, Kui ;
Ma, Jan .
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2013, 10 (04) :701-706
[23]   Normal ferroelectric to relaxor behavior in laser ablated Ca-doped barium titanate thin films [J].
Victor, P ;
Ranjith, R ;
Krupanidhi, SB .
JOURNAL OF APPLIED PHYSICS, 2003, 94 (12) :7702-7709
[24]   THE GLASSY BEHAVIOR OF RELAXOR FERROELECTRICS [J].
VIEHLAND, D ;
WUTTIG, M ;
CROSS, LE .
FERROELECTRICS, 1991, 120 (1-2) :71-77
[25]   PYROELECTRIC DEVICES AND MATERIALS [J].
WHATMORE, RW .
REPORTS ON PROGRESS IN PHYSICS, 1986, 49 (12) :1335-1386
[26]   CaTiO3-modified [(K0.5Na0.5)0.94Li0.06](Nb0.94Sb0.06)O3 lead-free piezoelectric ceramics with improved temperature stability [J].
Wu, Jiagang ;
Xiao, Dingquan ;
Wang, Yuanyu ;
Wu, Wenjuan ;
Zhang, Bin ;
Li, Jing ;
Zhu, Jianguo .
SCRIPTA MATERIALIA, 2008, 59 (07) :750-752
[27]   Effect of CoO additive on structure and electrical properties of (Na0.5Bi0.5)0.93Ba0.07TiO3 ceramics prepared by the citrate method [J].
Xu, Qing ;
Chen, Min ;
Chen, Wen ;
Liu, Han-Xing ;
Kim, Bok-Hee ;
Ahn, Byung-Kuk .
ACTA MATERIALIA, 2008, 56 (03) :642-650
[28]   Elastic, piezoelectric, and dielectric properties of Ba(Zr0.2Ti0.8)O3-50(Ba0.7Ca0.3)TiO3 Pb-free ceramic at the morphotropic phase boundary [J].
Xue, Dezhen ;
Zhou, Yumei ;
Bao, Huixin ;
Zhou, Chao ;
Gao, Jinghui ;
Ren, Xiaobing .
JOURNAL OF APPLIED PHYSICS, 2011, 109 (05)
[29]   High pyroelectricity in lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramics [J].
Yao, Shanshan ;
Ren, Wei ;
Ji, Hongfen ;
Wu, Xiaoqing ;
Shi, Peng ;
Xue, Dezhen ;
Ren, Xiaobing ;
Ye, Zuo-Guang .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2012, 45 (19)
[30]   Strong photoluminescence and piezoelectricity properties in Pr-doped Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3 ceramics: Influence of concentration and microstructure [J].
Zhang, Qiwei ;
Sun, Haiqin ;
Wang, Xusheng ;
Zhang, Yin ;
Li, Xia .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (05) :1439-1444
123