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Giant electrostrain under low driving field in Bi1;2Na1;2TiO3-SrTiO3 ceramics for actuator applications
Tong, Xing-Ye1,2; Li, Hai-Long1; Zhou, Jia-Jun1; Liu, Hong1; Fang, Jing-Zhong1
2016
Source PublicationCeramics International
ISSN0272-8842
Volume42Issue:14Pages:16153-16159
SubtypeJ
AbstractBiMg1/2Ti1/2O3(BMT)/NaNbO3(NN) was introduced into the Bi1/2Na1/2TiO3-SrTiO3lead-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 Smax/Emax>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)O3-based counterparts and demonstrates the great potential of the current materials in piezoactuator applications. © 2016 Elsevier Ltd and Techna Group S.r.l.
KeywordCeramic Materials Ferroelectricity Lead Perovskite Phase Diagrams Phase Structure Piezoelectric Ceramics Sodium Strontium Alloys Strontium Titanates
DOI10.1016/j.ceramint.2016.07.133
Indexed BySCI ; Ei
Language英语
Funding OrganizationNational Nature Science Foundation of China [51402297] ; West Light Foundation of the Chinese Academy of Sciences [A14K001] ; Youth Innovation Promotion Association CAS [2016334]
WOS IDWOS:000382269800136
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8487
Collection轻量化中心
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu
2.610209, China
3. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu
4.610209, China
Recommended Citation
GB/T 7714
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.
APA Tong, Xing-Ye,Li, Hai-Long,Zhou, Jia-Jun,Liu, Hong,&Fang, Jing-Zhong.(2016).Giant electrostrain under low driving field in Bi1;2Na1;2TiO3-SrTiO3 ceramics for actuator applications.Ceramics International,42(14),16153-16159.
MLA Tong, Xing-Ye,et al."Giant electrostrain under low driving field in Bi1;2Na1;2TiO3-SrTiO3 ceramics for actuator applications".Ceramics International 42.14(2016):16153-16159.
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