Composition dependent structure, dielectric and energy storage properties of Pb(Tm1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3 antiferroelectric ceramics

被引：29
作者：
Xu, Liuwei [1 ,2 ]
He, Chao [1 ]
Yang, Xiaoming [1 ]
Wang, Zujian [1 ]
Li, Xiuzhi [1 ]
Tailor, Hamel N. [3 ]
Long, Xifa [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2017年 / 37卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Antiferroelectric ceramics; Perovskite; Curie-Weiss law; Dielectric properties; Energy storage; PHASE-TRANSITIONS; RENEWABLE ENERGY; LEAD ZIRCONATE; PEROVSKITE; (SR1-XCAX)TIO3; ORDER;
D O I：
10.1016/j.jeurceramsoc.2017.04.005
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：
In order to stabilize the perovskite structure and improve the storage energy density (U) of Pb(Tm1/2Nb1/2)O-3 (PTmN) based materials, Pb(Mg1/3Nb2/3)O-3 (PMN) was introduced into PTmN to form binary (1-x)PTmN-xPMN solid solution ceramics. The XRD patterns show that all the compositions belong to orthorhombic phase with space group Pbnm. The Curie temperature (T-c) gradually decreases while the dielectric constant (epsilon') increases for (1-x)PTmN-xPMN with increasing PMN content. The epsilon' of each composition above Tc obeys the Curie-Weiss law. The appearance double hysteresis loop confirms the antiferroelectric nature of (1-x)PTmN-xPMN (x=0.02-0.18) ceramics. With the increase of PMN concentration, the maximum polarization slowly increases from 8.58 mu C/cm(2) to 29.51 mu C/cm(2) while the threshold electric field (EA-F) gradually declines from 2901N/cm to 120 kVicm. The maximum of U (3.12 J/cm(3)) is obtained in 0.92PTmN-0.08PMN ceramic with moderate EA-F = 220 kVicm, which makes (1-x)PTmN-xPMN ceramics safe in practical application. (C) 2017 Elsevier Ltd. All rights reserved.
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页码：3329 / 3334
页数：6
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