Dielectric, ferroelectric and piezoelectric properties of Bi0.5Na0.5TiO3-(Ba0.7Ca0.3)TiO3 ceramics at morphotropic phase boundary composition

被引：27

作者：

Yang, Jingna ^{[1
]}

Liu, Peng ^{[1
]}

Bian, Xiaobing ^{[1
]}

Jing, Huixia ^{[1
]}

Wang, Yajuan ^{[1
]}

Zhang, Yu ^{[1
]}

Wu, Yi ^{[1
]}

Song, Wuhui ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2011年 / 176卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Bi0.5Na0.5TiO3; Morphotropic phase boundary; Dielectric; Ferroelectric; Piezoelectric; ELECTRICAL-PROPERTIES; POLARIZATION ROTATION; BARIUM-TITANATE; SYSTEM; TEMPERATURE; CRYSTALS; BEHAVIOR;

D O I：

10.1016/j.mseb.2010.12.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(1 - x)Bi0.5Na0.5TiO3-x(Ba0.7Ca0.3)TiO3 (BNT-xBCT, 0 <= x <= 0.15) solid solutions have been synthesized by a conventional solid state sintering method for obtaining a morphotropic phase boundary (MPB) with good piezoelectric properties. X-ray diffraction patterns reveal that a MPB of rhombohedral and tetragonal phases is formed at compositions 0.09 <= x <= 0.12. Addition of BCT into BNT greatly lowered coercive field E-c without degrading remanent polarization P. The specimen with x = 0.09 has the good piezoelectric properties: d(33) = 125 pC/N and k(p) = 0.33. A modified Curie-Weiss law was used to fit the dielectric constant of BNT-xBCT ceramics, and a frequency dispersion was observed during the phase transitions from antiferroelectric to paraelectric in specimens with x exceeding 0.06. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

引用

页码：260 / 265

页数：6

共 31 条

[1] Origin of morphotropic phase boundaries in ferroelectrics [J].

Ahart, Muhtar ;

Somayazulu, Maddury ;

Cohen, R. E. ;

Ganesh, P. ;

Dera, Przemyslaw ;

Mao, Ho-Kwang ;

Hemley, Russell J. ;

Ren, Yang ;

Liermann, Peter ;

Wu, Zhigang .

NATURE, 2008, 451 (7178) :545-U2

[2] Domain-size dependence of piezoelectric properties of ferroelectrics [J].

Ahluwalia, R ;

Lookman, T ;

Saxena, A ;

Cao, WW .

PHYSICAL REVIEW B, 2005, 72 (01)

[3] Finite-temperature properties of Pb(Zr1-xTix)O3 alloys from first principles [J].

Bellaiche, L ;

García, A ;

Vanderbilt, D .

PHYSICAL REVIEW LETTERS, 2000, 84 (23) :5427-5430

[4]

CROSS LE, 1987, FERROELECTRICS, V76, P241, DOI 10.2109/jcersj.99.829

[5] Morphotropic phase boundary and piezoelectric properties of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3-KNbO3 lead-free piezoelectric ceramics [J].

Fan, Guifen ;

Lu, Wenzhong ;

Wang, Xiaohong ;

Liang, Fei .

APPLIED PHYSICS LETTERS, 2007, 91 (20)

[6] Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics [J].

Fu, HX ;

Cohen, RE .

NATURE, 2000, 403 (6767) :281-283

[7] Thermal depoling process and piezoelectric properties of bismuth sodium titanate ceramics [J].

Hiruma, Yuji ;

Nagata, Hajime ;

Takenaka, Tadashi .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (08)

[8] Crystal growth and electrical properties of lead-free piezoelectric material (Na1/2Bi1/2)TiO3-BaTiO3 [J].

Hosono, Y ;

Harada, K ;

Yamashita, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2001, 40 (9B) :5722-5726

[9]

JAFFE B, 1971, PIEZOELECTRIC CERAMI, P146

[10] Crystal Structure and Ferroelectric Properties of (Bi0.5Na0.5)TiO3-Ba(Zr0.05Ti0.95)O3 Piezoelectric Ceramics [J].

Lee, Wei-Chih ;

Lee, Yi-Fang ;

Tseng, Min-Hui ;

Huang, Chi-Yuen ;

Wu, Yu-Chun .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (05) :1069-1073

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