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Thermodynamic Stability and Thermal Expansion of Pure-phase BiFeO3
Cheng Guo-Feng; Ruan Yin-Jie; Sun Yue; Yin Han-Di
2019-09-23
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:10Pages:1128
SubtypeArticle
AbstractThe thermodynamic stability and thermal expansion of pure-phase BiFeO3 multiferroic are studied using in-situ high temperature X-ray diffraction (HT-XRD), and high temperature Raman spectroscopy (HT-Raman). BiFeO3 keeps its rhombohedral structure with space group of R3c in heating process. However, minor BiFeO3 could decompose to Bi2Fe4O9 and Bi25FeO39 in cooling process, which may be induced by its oxygen octahedron tilt distortion. In addition, the thermal expansion coefficients of BiFeO3 are also investigated, showing an isotropic and positive behavior. These results are further confirmed by Raman spectrum analysis. This work may benefit for the preparation of pure-phase BiFeO3.
KeywordBiFeO3 phase transition thermal expansion coefficients HT-XRD HT-Raman
DOI10.15541/jim20190005
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26824
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Cheng Guo-Feng,Ruan Yin-Jie,Sun Yue,et al. Thermodynamic Stability and Thermal Expansion of Pure-phase BiFeO3[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(10):1128.
APA Cheng Guo-Feng,Ruan Yin-Jie,Sun Yue,&Yin Han-Di.(2019).Thermodynamic Stability and Thermal Expansion of Pure-phase BiFeO3.JOURNAL OF INORGANIC MATERIALS,34(10),1128.
MLA Cheng Guo-Feng,et al."Thermodynamic Stability and Thermal Expansion of Pure-phase BiFeO3".JOURNAL OF INORGANIC MATERIALS 34.10(2019):1128.
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