Large strain response in Li/Nb co-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free piezoceramics

doi:10.1016/j.ceramint.2017.12.113

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	Large strain response in Li/Nb co-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free piezoceramics
	Wang, Cheng 1,3; Xia, Tiandong 1; Lou, Xiaojie 2
刊名	Ceramics International
	2018-05-01
卷号	44 期号:7 页码:7378-7383
关键词	Electric fields Perovskite Piezoelectric ceramics Sintering Solid state reactions E. capacitors Ferroelectric relaxors Lead free ceramics Lead free piezoceramics Pure perovskite structure Relaxor characteristics Solid-state reaction techniques Structural and electrical properties
ISSN号	02728842
DOI	10.1016/j.ceramint.2017.12.113
英文摘要	A series of (Bi0.5Na0.4K0.1)Ti0.98Nb0.02O3-xLi lead-free ceramics were fabricated using the solid-state reaction technique. The effects of Li/Nb cations on the structural and electrical properties of the ceramics were investigated. All the sintered ceramics exhibited pure perovskite structure and the average grain size increased slightly with increasing the Li content. Shape of the P-E loops illustrated the relaxor characteristic of all the samples. A giant strain of 0.4% was obtained at 60 kV/cm at x = 0.01 and the corresponding normalized strain was up to 683 pm/V, moreover, the strain exhibits excellent fatigue-resistance behavior. The giant strain can be attributed to the ferroelectric-relaxor phase transition under external driving electric field. These results indicate the sintered Li/Nb co-doped lead-free ceramics can be promising candidate for actuator applications. © 2017 Elsevier Ltd and Techna Group S.r.l.
资助项目	CSS Project[YK2015-0602006]
WOS研究方向	Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000428974300006
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114592]
专题	兰州理工大学
通讯作者	Xia, Tiandong; Lou, Xiaojie
作者单位	1.Lanzhou Univ Technol, 287 Langongping Rd, Lanzhou 730050, Gansu, Peoples R China 2.Xi An Jiao Tong Univ, 1 West Bldg,99 Yanxiang Rd, Xian 710054, Shaanxi, Peoples R China 3.Gansu Construct Vocat Tech Coll, 200 Yanjiaping Village, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Cheng,Xia, Tiandong,Lou, Xiaojie. Large strain response in Li/Nb co-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free piezoceramics[J]. Ceramics International,2018,44(7):7378-7383.
APA	Wang, Cheng,Xia, Tiandong,&Lou, Xiaojie.(2018).Large strain response in Li/Nb co-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free piezoceramics.Ceramics International,44(7),7378-7383.
MLA	Wang, Cheng,et al."Large strain response in Li/Nb co-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free piezoceramics".Ceramics International 44.7(2018):7378-7383.