南方科技大学知识苑(SUSTech KC): Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf>-SrTiO<inf>3</inf> ceramics

题名	Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi0.5Na0.5TiO3-SrTiO3 ceramics
作者	He, Hongying 1; Lu, Xin 1; Li, Minchan 1; Wang, Yumei 1; Li, Zhenrong 2; Lu, Zhouguang3 ; Lu, Li 1
通讯作者	Lu, Li
发表日期	2020
DOI	10.1039/c9tc04864b
发表期刊	Journal of Materials Chemistry C 影响因子和分区
ISSN	20507526
EISSN	2050-7534
卷号	8 期号:7页码:2411-2418
摘要	The dielectric, piezoelectric and ferroelectric properties of (1-x)(Bi0.5Na0.5)TiO3-xSrTiO3 (BNT-ST) ceramics (0 ≤ x ≤ 0.30) are systematically studied in order to investigate their relaxor ferroelectric behaviours driven by thermal and compositional changes. The significant enhancement of the piezoelectric coefficient (d33 = 152 pC N^-1) has been observed for x = 0.20. In addition, the BNT-24ST ceramic exhibits an electric field-induced strain of 0.20% at 7 kV mm^-1 and a normalized strain d33∗ of 266 pm V^-1. The increase in the ST content drives BNT from the ferroelectric to relaxor ferroelectric state due to the rising disordering level. In addition, the behaviours of the field-induced metastable ferroelectric to relaxor phase transition are studied based on the anomalies in the temperature dependence of the dielectric properties. To investigate the thermal-induced domain behaviour, in situ piezoresponse force microscopy (PFM) is used to observe the domain structures of the poled BNT-16ST ceramic upon heating and cooling. This study provides evidence for understanding the relaxor ferroelectric behaviours of the BNT-ST ceramics. © 2020 The Royal Society of Chemistry.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	其他
资助项目	Ministry of Education[2016-T2-1-112]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000517258900018
出版者	Royal Society of Chemistry
EI入藏号	20200908247052
EI主题词	Ferroelectricity ; Piezoelectricity ; Scanning probe microscopy ; Strontium titanates ; Temperature distribution
EI分类号	Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Chemistry:801 ; Chemical Products Generally:804
来源库	Web of Science
引用统计	被引频次[WOS]：58
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/104694
专题	工学院_材料科学与工程系
作者单位	1.Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore; 117575, Singapore 2.Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'An Jiaotong University, Xi'an; 710049, China 3.Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen; 518055, China
推荐引用方式 GB/T 7714	He, Hongying,Lu, Xin,Li, Minchan,et al. Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi0.5Na0.5TiO3-SrTiO3 ceramics[J]. Journal of Materials Chemistry C,2020,8(7):2411-2418.
APA	He, Hongying.,Lu, Xin.,Li, Minchan.,Wang, Yumei.,Li, Zhenrong.,...&Lu, Li.(2020).Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi0.5Na0.5TiO3-SrTiO3 ceramics.Journal of Materials Chemistry C,8(7),2411-2418.
MLA	He, Hongying,et al."Thermal and compositional driven relaxor ferroelectric behaviours of lead-free Bi0.5Na0.5TiO3-SrTiO3 ceramics".Journal of Materials Chemistry C 8.7(2020):2411-2418.