Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics

doi:10.1063/1.4983029

	Type-I pseudo-first-order phase transition induced electrocaloric effect in lead-free Bi0.5Na0.5TiO3-0.06BaTiO3ceramics
	Li, Feng 1,2,3; Chen, Guorui 4; Liu, Xing 1; Zhai, Jiwei 1; Shen, Bo 1; Li, Shandong 4; Li, Peng 1; Yang, Ke 1; Zeng, Huarong 2; Yan, Haixue 5
刊名	Applied Physics Letters
	2017
卷号	110 期号:18
ISSN号	00036951
DOI	10.1063/1.4983029
英文摘要	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).
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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).