Electric field-induced large strain of (Bi1/2Na1/2)0.935Ba0.065TiO3-CaYAlO4 lead-free ceramics

被引：6

作者：

Li, Liangliang ^{[1
]}

Hao, Jigong ^{[1
]}

Xu, Zhijun ^{[2
]}

Li, Wei ^{[1
]}

Chu, Ruiqing ^{[2
]}

机构：

[1] Liaocheng Univ, Coll Mat Sci & Engn, Liaocheng 252059, Peoples R China

[2] Yantai Univ, Sch Environm & Mat Engn, 32 Qingquan Rd, Yantai 264005, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 209卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Lead-free piezoelectric ceramics; Phase transition; Ferroelectricity; Field-induced strain; FREE PIEZOELECTRIC CERAMICS; TEMPERATURE; BEHAVIOR; CRYSTAL; CAYALO4;

D O I：

10.1016/j.matlet.2017.08.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead-free piezoelectric ceramics (1-x)(Bi1/2Na1/2)(0.935)Ba0.065TiO3-xCaYAlO(4) (BNBT6.5-xCYAO) were prepared using a conventional solid sintering technique. The addition of CYAO destroyed the ferroelectric long-range order with the shift of the ferroelectric-relaxor transition temperature TF-R down to room temperature and induced the appearance of ergodic relaxor phase. Thus, it leads to a giant field-induced strain with a peak value of 0.44% at x = 0.012. (C) 2017 Published by Elsevier B.V.

引用

页码：408 / 412

页数：5

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