Structure and properties of (NaxLaxPb1-2x)(Lu1/2Nb1/2)O3 antiferroelectric ceramics

被引：15
|
作者：
Yang, Xiaoming [1 ]
He, Chao [1 ]
Liu, Ying [1 ]
Long, Xifa [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
来源：
MATERIALS & DESIGN | 2016年 / 92卷
基金：
中国国家自然科学基金;
关键词：
Pb(Lu1/2Nb1/2)O-3; Ceramics; Antiferroelectrics; Phase transition; Energy storage density; PHASE-TRANSITIONS; PIEZOELECTRIC PROPERTIES; CRYSTAL-STRUCTURE; PEROVSKITE; PERFORMANCE; BEHAVIORS; SYSTEM;
D O I：
10.1016/j.matdes.2015.12.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
(NaxLaxPb1-2x)(Lu1/2Nb1/2)O-3 antiferroelectric (AFE) ceramics (x = 0, 0.01 0.02, 0.03, 0.04, 0.05) were successfully obtained by solid state reactions. The structural phase transitions and the electrical behavior have been investigated. XRD analysis indicates that La3+ and Na+ have diffused into the lattices and the ceramics display a pure perovskite structure. It is found Curie temperature Tc for AFE transition decreases from 270 degrees C to 242 degrees C with increasing of Na+ and La3+ content, similarly, the dielectric constant (69 decreases from 677 to 390. Compared to La(x)pb(1-3x/2)(Lu1/2Nb1/2)O-3 AFE ceramics, the energy storage performance was enhanced about 7%, and the maximum value of energy storage density was calculated up to 4.12 J/cm(3) at 200 degrees C (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：330 / 334
页数：5
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