Effects of Bi(Zn2/3Nb1/3)O3 Modification on the Relaxor Behavior and Piezoelectricity of Pb(Mg1/3Nb2/3)O3-PbTiO3 Ceramics

被引：13

作者：

Liu, Zenghui ^{[1
,2
,3
,4
]}

Wu, Hua ^{[3
,4
,5
]}

Paterson, Alisa ^{[3
,4
]}

Ren, Wei ^{[6
]}

Ye, Zuo-Guang ^{[1
,2
,3
,4
]}

机构：

[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Minist Educ, Key Lab, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Int Ctr Dielectr Res, Xian 710049, Shaanxi, Peoples R China

[3] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

[4] Simon Fraser Univ, LABS 4D, Burnaby, BC V5A 1S6, Canada

[5] Donghua Univ, Dept Appl Phys, Shanghai 201620, Peoples R China

[6] Xi An Jiao Tong Univ, Elect Mat Res Lab, Minist Educ, Int Ctr Dielectr Res,Key Lab, Xian 710049, Shaanxi, Peoples R China

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2017年 / 64卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Bi(Zn2/3Nb1/3)O-3 substitution; complex perovskite; Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) solid solution; piezoelectric and ferroelectric properties; relaxor behavior; SOLID-SOLUTIONS; FERROELECTRIC CERAMICS; PEROVSKITE; POLARIZATION; TRANSITION;

D O I：

10.1109/TUFFC.2017.2721443

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Relaxor lead magnesium niobate (PMN)-based materials exhibit complex structures and unusual properties that have been puzzling researchers for decades. In this paper, a new ternary solid solution of Pb(Mg1/3Nb2/3)O-3-PbTiO3Bi(Zn2/3Nb1/3)O-3 (PMN-PT-BZN) is prepared in the form of ceramics, and the effects of the incorporation of BZN into the PMN-PT binary system are investigated. The crystal structure favors a pseudocubic symmetry and the relaxor properties are enhanced as the concentration of BZN increases. The relaxor behavior and the related phase transformations are studied by dielectric spectroscopy. A phase diagram mapping out the characteristic temperatures and various states is established. Interestingly, the piezoelectricity of the PMN-PT ceramics is significantly enhanced by the BZN substitution, with an optimal value of d(33) reaching 826 pC/N for 0.96[0.7Pb(Mg1/3Nb2/3)O(3)0.3PbTiO(3)]-0.04Bi(Zn2/3Nb1/3)O-3. This paper provides a better understanding of the relaxor ferroelectric behavior, and unveils a new relaxor-based ternary system as piezoelectric materials potentially useful for electromechanical transducer applications.

引用

页码：1608 / 1616

页数：9