Superior and anti-fatigue electro-strain in Bi0.5Na0.5TiO3-based polycrystalline relaxor ferroelectrics

doi:10.1039/c8ta11650d

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Superior and anti-fatigue electro-strain in Bi0.5Na0.5TiO3-based polycrystalline relaxor ferroelectrics
	Yin, J ; Liu, G ; Lv, X ; Zhang, YX ; Zhao, CL ; Wu, B ; Zhang, XM ; Wu, JG
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019
卷号	7 期号:10 页码:5391—5401
关键词	LEAD-FREE CERAMICS GIANT STRAIN PIEZOELECTRICITY TEMPERATURE TRANSITION ORIGIN
ISSN号	2050-7488
DOI	10.1039/c8ta11650d
文献子类	期刊论文
英文摘要	For eco-friendly bismuth sodium titanate (Bi0.5Na0.5TiO3)-based materials, ultrahigh poling strain (S-pol) is always accompanied with a sizable remnant strain (S-rem), which severely restricts the cycling reliability of their superior electro-strain. Composition engineering is an effective way of eliminating S-rem, but S-pol will be sacrificed as well, leading to an overall inferior electro-strain. Here, by composition engineering and subtle criticality confinement, a giant recoverable electro-strain (S > 0.7%, realizing S-rem modulation without S-pol sacrifice) with reduced hysteresis is reported in BNT-based relaxor ferroelectrics, which can be kept at a high level (<2% variation) even after 10(5) fatigue cycles. As disclosed by the detailed electric field-dependent multi-scale analyses, the electro-strain behavior is tightly associated with the agglomeration and deagglomeration process of polar clusters. More efficient release of mechanical mismatch stress among interacting polar entities is suggested to facilitate the deagglomeration process of polar clusters, ensuring a faster restoration of the electric field-induced ferroelectric state when the electric field is removed, which is responsible for the reduced hysteresis and the excellent fatigue performance. These results indicate the significance of subtle criticality confinement, and the insight for the design of polycrystalline ceramics with giant and anti-fatigue electro-strain may be useful to develop a new generation of eco-friendly actuators.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31839]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Sichuan Univ, Dept Mat Sci, Chengdu 610064, Sichuan, Peoples R China; 2.Chengdu Univ Informat Technol, Sichuan Prov Key Lab Informat Mat & Devices Appli, Chengdu, Sichuan, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Yin, J,Liu, G,Lv, X,et al. Superior and anti-fatigue electro-strain in Bi0.5Na0.5TiO3-based polycrystalline relaxor ferroelectrics[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(10):5391—5401.
APA	Yin, J.,Liu, G.,Lv, X.,Zhang, YX.,Zhao, CL.,...&Wu, JG.(2019).Superior and anti-fatigue electro-strain in Bi0.5Na0.5TiO3-based polycrystalline relaxor ferroelectrics.JOURNAL OF MATERIALS CHEMISTRY A,7(10),5391—5401.
MLA	Yin, J,et al."Superior and anti-fatigue electro-strain in Bi0.5Na0.5TiO3-based polycrystalline relaxor ferroelectrics".JOURNAL OF MATERIALS CHEMISTRY A 7.10(2019):5391—5401.