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Large strain response in Bi4Ti3O12modified BNT-BT piezoelectric ceramics
Li, Peng1; Liu, Baihui1; Shen, Bo1; Zhai, Jiwei1; Li, Lingyu1; Zeng, Huarong2
2017
发表期刊Ceramics International
ISSN02728842
卷号43期号:1页码:1008-1021
摘要In this paper, a novel system of lead-free piezoelectric ceramics 0.94(Bi0.5Na0.5)TiO3−0.06BaTiO3-xBi4Ti3O12(abbreviated as BNT-BT-xBiT) were prepared by the solid-state reaction method. The effects of Bi4Ti3O12dopant on the strain behavior, dielectric, ferroelectric and piezoelectric performance of BNT-BT ceramics were systematically investigated. A optimal strain value of ~0.37% was achieved around the critical composition of x=6 wt% which corresponds to a normalized strain (Smax/Emax) of 465 pm/V. The large strain response in this sample is mainly originated from two aspects: one is that BiT addition induced ferroelectric-to-relaxor phase transition evidenced by “pinched” ferroelectric hysteresis loops and vanished negative strain of bipolar strain loops as well as downward shift of TF-R; the other is that the small-sized nanodomains (or polar nanoregions) facilitate the domain switching and domain wall motion with an applied electric field, which lead to large external contribution to strain response. These results indicate that BNT-BT-xBiT piezoelectric ceramics with large strain response may be a promising lead-free material for actuator application. © 2016 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2016.10.033
EI入藏号20164703034941
EI主题词Bismuth compounds
EI分类号701.1 Electricity: Basic Concepts and Phenomena - 801.4 Physical Chemistry - 802.2 Chemical Reactions - 812.1 Ceramics - 933.1 Crystalline Solids - 951 Materials Science
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25888
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, School of Materials Science & Engineering, Tongji University, Shanghai; 201804, China;
2.Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
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GB/T 7714
Li, Peng,Liu, Baihui,Shen, Bo,et al. Large strain response in Bi4Ti3O12modified BNT-BT piezoelectric ceramics[J]. Ceramics International,2017,43(1):1008-1021.
APA Li, Peng,Liu, Baihui,Shen, Bo,Zhai, Jiwei,Li, Lingyu,&Zeng, Huarong.(2017).Large strain response in Bi4Ti3O12modified BNT-BT piezoelectric ceramics.Ceramics International,43(1),1008-1021.
MLA Li, Peng,et al."Large strain response in Bi4Ti3O12modified BNT-BT piezoelectric ceramics".Ceramics International 43.1(2017):1008-1021.
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