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

doi:10.1016/j.jallcom.2019.05.015

SIC OpenIR

	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
	2019-08-05
Source Publication	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
Volume	796 Pages:221
Subtype	Article
Abstract	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.
Keyword	BiFeO3 Structural disorder Microstructures Polarization Dielectric behavior
DOI	10.1016/j.jallcom.2019.05.015
Language	英语
WOS Research Area	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
Publisher	ELSEVIER SCIENCE SA
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26921
Collection	中国科学院上海硅酸盐研究所
Recommended Citation 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.

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