The grain size effect in dielectric diffusion and electrical conduction of PZnTe-PZT ceramics

doi:10.1016/j.physb.2019.02.007

	The grain size effect in dielectric diffusion and electrical conduction of PZnTe-PZT ceramics
	Huang, Xiang; Li, Weiwei; Zeng, Jiangtao; Zheng, Liaoying; Man, Zhenyong; Li, Guorong
刊名	PHYSICA B-CONDENSED MATTER
	2019-05-01
卷号	560 页码:16
关键词	PZnTe-PZT Segregation Dielectric diffusion Electrical conduction
ISSN号	0921-4526
DOI	10.1016/j.physb.2019.02.007
文献子类	Article
英文摘要	This study investigates systematically the microstructure, dielectric diffusion and electrical conduction behavior in xPb(Zn0.5Te0.5)O-3-(1-x)Pb(Zr0.5Ti0.5)O-3 (PZnTe-PZT) ceramics. The grain size has an obvious drop in PZT and PZnTe-PZT system. EDS reveals that the Te element segregates at the grain boundary, which can inhibit grain growth during the sintering process and result in the difference of element contents between grain and grain boundary. The permittivity peak become broaden when the PZnTe add in and this phenomenon is explained by the brick-wall model, which is due to the difference in grain size. The diffusion behavior is described by the empirical expression and the W2/3M-H parameter and it shows that the co-action of the grain size effect and the doping effect influence the dielectric diffusion of PZnTe-PZT ceramics. The electrical conduction characteristics in different temperature and frequency show the difference of activation energy for ac conductivity between the PZT and the PZnTe-PZT, which are related to the grain size and the element segregation in grain boundary.
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27155]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Huang, Xiang,Li, Weiwei,Zeng, Jiangtao,et al. The grain size effect in dielectric diffusion and electrical conduction of PZnTe-PZT ceramics[J]. PHYSICA B-CONDENSED MATTER,2019,560:16.
APA	Huang, Xiang,Li, Weiwei,Zeng, Jiangtao,Zheng, Liaoying,Man, Zhenyong,&Li, Guorong.(2019).The grain size effect in dielectric diffusion and electrical conduction of PZnTe-PZT ceramics.PHYSICA B-CONDENSED MATTER,560,16.
MLA	Huang, Xiang,et al."The grain size effect in dielectric diffusion and electrical conduction of PZnTe-PZT ceramics".PHYSICA B-CONDENSED MATTER 560(2019):16.