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Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics
Li, Feng1,2,3; Chen, Guorui4; Liu, Xing1; Zhai, Jiwei1; Shen, Bo1; Li, Shandong4; Li, Peng1; Yang, Ke1; Zeng, Huarong2; Yan, Haixue5
2017
发表期刊Applied Physics Letters
ISSN00036951
卷号110期号:18
摘要In this study, the electrocaloric effect (ECE) of Bi0.5Na0.5TiO3-0.06BaTiO3(BNT-0.06BT) ceramic has been directly measured using a home-made adiabatic calorimeter. The maximum adiabatic temperature change (ΔT) approaches 0.86 K under an electric field of 5 kV/mm at 110 °C, which provides experimental evidence for optimizing the ECE near the type-I pseudo-first-order phase transition (PFOPT). Most importantly, a considerable ΔT value can be maintained over a wide temperature range well above the temperature of the PFOPT under a high electric field. In addition, ΔT is closely related to the structural transition and electric field strength. This work provides a guideline to investigate the high ECE in BNT-based ferroelectric ceramics for applications in cooling technologies. © 2017 Author(s).
DOI10.1063/1.4983029
EI入藏号20171903640992
EI主题词Ferroelectric ceramics
EI分类号701.1 Electricity: Basic Concepts and Phenomena - 812.1 Ceramics
引用统计
被引频次:17[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/331005/25840
专题中国科学院上海硅酸盐研究所
作者单位1.Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai; 201804, China;
2.Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China;
4.College of Physics, Qingdao University, 308 Ningxia Road, Qingdao; 266071, China;
5.School of Engineering and Materials Science, Queen Mary University of London, London; E1 4NS, United Kingdom
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Li, Feng,Chen, Guorui,Liu, Xing,et al. Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics[J]. Applied Physics Letters,2017,110(18).
APA Li, Feng.,Chen, Guorui.,Liu, Xing.,Zhai, Jiwei.,Shen, Bo.,...&Yan, Haixue.(2017).Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics.Applied Physics Letters,110(18).
MLA Li, Feng,et al."Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics".Applied Physics Letters 110.18(2017).
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