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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 PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume796Pages:221
SubtypeArticle
AbstractAl 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.
KeywordBiFeO3 Structural disorder Microstructures Polarization Dielectric behavior
DOI10.1016/j.jallcom.2019.05.015
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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