Temperature dependences of the ferroelectric and dielectric properties of high curie temperature PbTiO3-BiScO3-Bi(Zn1/2Zr1/2)O3

被引：13

作者：

Kang, Huajun ^{[1
]}

Chen, Jun ^{[1
]}

Liu, Laijun ^{[2
]}

Fang, Liang ^{[2
]}

Xing, Xianran ^{[1
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Chem, Beijing 100083, Peoples R China

[2] Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China

[3] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Ceramics; Ferroelectricity; Piezoelectricity; MORPHOTROPIC PHASE-BOUNDARY;

D O I：

10.1016/j.materresbull.2013.02.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The piezoelectric ceramics (1 - x - y)PbTiO3-xBiScO(3)-yBi(Zn1/2Zr1/2)O-3 exhibit greatly enhanced ferroelectric properties above room temperature, between 100 and 200 degrees C. A strong second harmonic generation (SHG) effect was observed below 200 degrees C. The highest remanent polarization (similar to 40 mu C/cm(2)) and lowest coercive field (similar to 10 kV/cm) were obtained at 200 degrees C. X-ray diffraction (XRD) analysis was used to investigate the morphotropic phase boundary (MPB) structure of (1 - x - y)PbTiO3-xBiScO(3)-yBi(Zn1/2Zr1/2)O-3 ceramics. Transmission electron microscopy (TEM) results confirm the existence of MPB, where the rhombohedral and tetragonal phases coexist. The results of thermal expansion analysis show a low thermal expansion and stability of this material. The optimal high temperature piezoelectric ceramic is obtained by the composition of 0.05BZZ-0.34BS-0.61PT. (C) 2013 Elsevier Ltd. All rights reserved.

引用

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页数：4

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