Chemical interpretation, enhanced ferroelectric property and dielectric breakdown strength of CuO-added Sr2Nb2O7 ceramics

doi:10.1016/j.jeurceramsoc.2018.03.029

	Chemical interpretation, enhanced ferroelectric property and dielectric breakdown strength of CuO-added Sr2Nb2O7 ceramics
	Chen, Tao1,2,3 ; Liang, Ruihong 1; Zhou, Zhiyong 1; Jiang, Kai 4; Hu, Zhigao 4; Dong, Xianlin1
	2018-08
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY (IF:5.8[JCR-2023],5.7[5-Year])
ISSN	0955-2219
卷号	38 期号:9 页码:3147-3153
发表状态	已发表
DOI	10.1016/j.jeurceramsoc.2018.03.029
摘要	The structural interpretation and electrical properties of perovskite layer structured (PLS) Sr2Nb2O7-xwt%CuO ceramics prepared by solid-state reaction method are investigated. The chemical interpretation of enhanced piezoelectricity is confirmed to be attributed to the rotation and/or distortion of oxygen octahedron caused by possible Cu2+ substitution at the A-site of Sr2Nb2O7 by XRD refinement and variable-temperature Raman spectra. Sr2Nb2O7-xwtc%rCuO (x = 0.3, 0.5 and 0.7) ceramics shows enhanced ferroelectric properties with a larger P-r of similar to 4.1 mu C/cm(2) and a smaller E-c of similar to 63.1 kV/cm. This study further explains the cations in A-site play a major structural role in the polarization process for PLS system. It was found that dielectric breakdown strength increases up to 258.8 kV/cm and then decreases gradually with the increase of CuO content. Impedance spectroscopy indicated that CuO addition could be helpful in increasing the grain boundary resistance then dielectric breakdown strength.
关键词	Perovskite layered structure Piezoelectricity Ferroelectricity Dielectric breakdown Oxygen octahedron
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	National Key Basic Research Program of China (973 Program)[2015CB057502]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000433014200012
出版者	ELSEVIER SCI LTD
WOS关键词	ELECTRICAL-PROPERTIES ; HIGH-TEMPERATURE ; SUBSTITUTION ; TUNGSTEN ; NIOBATE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/20815
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_董显林组物质科学与技术学院_博士生
通讯作者	Zhou, Zhiyong; Dong, Xianlin
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, 100 Haike Rd, Shanghai 201210, Peoples R China 4.East China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
第一作者单位	上海科技大学
推荐引用方式 GB/T 7714	Chen, Tao,Liang, Ruihong,Zhou, Zhiyong,et al. Chemical interpretation, enhanced ferroelectric property and dielectric breakdown strength of CuO-added Sr2Nb2O7 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(9):3147-3153.
APA	Chen, Tao,Liang, Ruihong,Zhou, Zhiyong,Jiang, Kai,Hu, Zhigao,&Dong, Xianlin.(2018).Chemical interpretation, enhanced ferroelectric property and dielectric breakdown strength of CuO-added Sr2Nb2O7 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(9),3147-3153.
MLA	Chen, Tao,et al."Chemical interpretation, enhanced ferroelectric property and dielectric breakdown strength of CuO-added Sr2Nb2O7 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.9(2018):3147-3153.