The interplay of phases, structural disorder and dielectric behavior in Al doped BiFeO3-BaTiO3 ceramics

doi:10.1016/j.jallcom.2019.05.015

	The interplay of phases, structural disorder and dielectric behavior in Al doped BiFeO3-BaTiO3 ceramics
	Peng, Jiangguli; Zeng, Jiangtao; Zheng, Liaoying; Li, Guorong; Yaacoub, Nader; Tabellout, Mohamed; Gibaud, Alain; Kassiba, Abdelhadi
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2019-08-05
卷号	796 页码:221
关键词	BiFeO3 Structural disorder Microstructures Polarization Dielectric behavior
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2019.05.015
文献子类	Article
英文摘要	Al doped BiFeO3-BaTiO3 (BFA-BT) systems with a defined composition were prepared by a conventional solid-state method. From SEM and XRD analyses, the high-density of the ceramics and the high lattice parameters ratio c(T)/a(T) traducing large distortions of the rhombohedral phase play a dominant role in the enhanced piezoelectric properties. The high polarization and large strain were achieved in the BF(0.970)A(0.030)-BT system. Fe-57 Mossbauer spectra revealed the large disorder of Fe3+ at B sites preferentially occupied by more Al3+ doping ions, forming the diffusive phase transition for dielectric behaviors in ceramics. Grain and grain-boundary effects were pointed out from the dielectric modulus and its related thermal evolution. AC capacitances indicated two relaxation processes marked by the grains and interfaces involved in the polycrystalline ceramics for highly doped systems. (C) 2019 Published by Elsevier B.V.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26921]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Peng, Jiangguli,Zeng, Jiangtao,Zheng, Liaoying,et al. The interplay of phases, structural disorder and dielectric behavior in Al doped BiFeO3-BaTiO3 ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,796:221.
APA	Peng, Jiangguli.,Zeng, Jiangtao.,Zheng, Liaoying.,Li, Guorong.,Yaacoub, Nader.,...&Kassiba, Abdelhadi.(2019).The interplay of phases, structural disorder and dielectric behavior in Al doped BiFeO3-BaTiO3 ceramics.JOURNAL OF ALLOYS AND COMPOUNDS,796,221.
MLA	Peng, Jiangguli,et al."The interplay of phases, structural disorder and dielectric behavior in Al doped BiFeO3-BaTiO3 ceramics".JOURNAL OF ALLOYS AND COMPOUNDS 796(2019):221.