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题名:
Giant electrostrain under low driving field in Bi1/2Na1/2TiO3-SrTiO3 ceramics for actuator applications
作者: Tong, Xing-Ye1,2; Li, Hai-Long1; Zhou, Jia-Jun1; Liu, Hong1; Fang, Jing-Zhong1
刊名: CERAMICS INTERNATIONAL
出版日期: 2016-11-01
卷号: 42, 期号:14, 页码:16153-16159
关键词: Lead-free piezoceramics ; Perovskite ; Na0.5Bi0.5TiO3
DOI: 10.1016/j.ceramint.2016.07.133
文章类型: Article
英文摘要: BiMg1/2Ti1/2O3 (BMT)/NaNbO3 (NN) was introduced into the Bi1/2Na1/2TiO3-SrTiO3 lead-free system to modify its phase structure and electrical properties. The ceramics were prepared by a traditional ceramic processing method. All samples exhibited pure perovskite structure, as well as dense microstructures. The modified compositions underwent a phase transition from a ferroelectric phase to an ergodic relaxor state with increasing BMT/NN content. This transition was identified from the decrease in the ferroelectric-relaxor transition temperature to room temperature. When the composition was located in the vicinity of the critical region, giant electrostrain was obtained owing to the field-induced reversible transition between the relaxor and ferroelectric phases. A schematic phase diagram was constructed based on the measured properties. Excellent actuating performance of s(max)/E-max > 850 pm/V with an ultra-low driving field of E <= 3 kV/mm was achieved in the modified compositions. This performance is comparable to that of the Pb(Zr,Ti)O-3-based counterparts and demonstrates the great potential of the current materials in piezoactuator applications. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Materials Science, Ceramics
研究领域[WOS]: Materials Science
关键词[WOS]: LEAD-FREE PIEZOCERAMICS ; FREE PIEZOELECTRIC CERAMICS ; LARGE-STRAIN ; ELECTRIC-FIELD ; SYSTEM ; PERSPECTIVE
收录类别: SCI
项目资助者: National Nature Science Foundation of China(51402297) ; West Light Foundation of the Chinese Academy of Sciences(A14K001) ; Youth Innovation Promotion Association CAS(2016334)
语种: 英语
WOS记录号: WOS:000382269800136
ISSN号: 0272-8842
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6475
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China

Recommended Citation:
Tong, Xing-Ye,Li, Hai-Long,Zhou, Jia-Jun,et al. Giant electrostrain under low driving field in Bi1/2Na1/2TiO3-SrTiO3 ceramics for actuator applications[J]. CERAMICS INTERNATIONAL,2016,42(14):16153-16159.
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