Diffusion phase transition and ferroelectric properties of 0.92K0.5Na0.5NbO3-(0.08-x)Bi0.5Li0.5TiO3-xBaZrO3 ceramics

被引：32

作者：

Wu, Meixia ^{[1
]}

Fang, Liang ^{[1
]}

Liu, Laijun ^{[1
]}

Zhou, Xiang ^{[1
]}

Huang, Yanmin ^{[1
]}

Li, Yunhua ^{[1
]}

机构：

[1] Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ,Coll Mat Sci & Engn, Guilin 541004, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 132卷 / 2-3期

关键词：

Electronic materials; Sintering; Electrical characterization; Dielectric properties; PIEZOELECTRIC PROPERTIES; DIELECTRIC-PROPERTIES; ELECTRICAL-PROPERTIES; TEMPERATURE;

D O I：

10.1016/j.matchemphys.2011.12.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

0.92K(0.5)Na(0.5)NbO(3)-(0.08-x)Bi0.5Li0.5TiO3-xBaZrO(3) (KNN-BLT-BZ) lead-free piezoelectric ceramics were fabricated by traditional ceramics process. XRD results showed that complete solid solutions with mixed phases of rhombohedra and tetragonal were observed. Diffusion phase transitional behavior, dielectric properties and ferroelectric properties of the KNN-BLT-BZ ceramics were investigated. It was found that the cubic-tetragonal phase transition temperature (T-C) slightly decreased as the amount of BaZrO3 was increased. A morphotropic phase boundary (MPB) between rhombohedral and tetragonal ferroelectric phases was identified in the composition range of 0.04 <= x <= 0.06. Furthermore, good ferroelectric properties were also found in this composition range, with P-r of 14.5 mu C cm(-2) and E-c of 1.95 kV mm(-1) for the sample with x = 0.04. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1015 / 1018

页数：4

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