ICCAS OpenIR
Phase relations of BaCoO3 (- delta)-BaInO2.5 and size variation effect of B-site cations on the phase transitions
Li, Kuo1; Wang, Yingxia1; Lin, Jianhua1; Li, Zhaofei1,2
2011-02-11
Source PublicationSOLID STATE IONICS
ISSN0167-2738
Volume183Issue:1Pages:7-15
AbstractThe phase relations in the system of BaCoO3 (-) (delta)-BaInO2.5 in the temperature range 800-1150 degrees C were investigated and five phases with perovskite or its related structures were identified. In the range of 1050 to 1150 degrees C, there exists a wide solid solution BaInxCo1 - xOy(0.1 <= x <= 0.84, 2.54 <= y <= 2.59) with the cubic perovskite structure. At 1050 degrees C, the cubic phase transforms to an orthorhombic phase firstly at x = 0.55 and the cubic solid solution is separated into two regions, and narrowed with the decrease of the temperature. The structure of the cubic phase in In-rich region appears as a super-lattice (a') of the simple cubic phase (a(p)) with the modulation vector a'=2a(p). At 950 degrees C. a tetragonal phase BaIn0.64Co0.36Oy emerges and extends to a solid solution at lower temperature. The orthorhombic and tetragonal structures are studied by electron diffraction and powder X-ray Rietveld analysis. The size variance of B-site cations was applied to interpret the phase transition from the cubic to the orthorhombic at x = 0.55 for compounds BaInxCo1 - xOy. The cubic solid solution shows good conductivities at low temperature. (C) 2010 Elsevier B.V. All rights reserved.
KeywordPerovskite Ba2in2o5 Brownmillerite Size Variance Phase Transition Conductivity
DOI10.1016/j.ssi.2010.12.007
Indexed BySCI
Language英语
WOS IDWOS:000288620500002
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71652
Collection中国科学院化学研究所
Corresponding AuthorWang, Yingxia
Affiliation1.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
2.Kyoto Univ, Inst Integrated Cell Mat Sci, Kyoto 6068501, Japan
Recommended Citation
GB/T 7714
Li, Kuo,Wang, Yingxia,Lin, Jianhua,et al. Phase relations of BaCoO3 (- delta)-BaInO2.5 and size variation effect of B-site cations on the phase transitions[J]. SOLID STATE IONICS,2011,183(1):7-15.
APA Li, Kuo,Wang, Yingxia,Lin, Jianhua,&Li, Zhaofei.(2011).Phase relations of BaCoO3 (- delta)-BaInO2.5 and size variation effect of B-site cations on the phase transitions.SOLID STATE IONICS,183(1),7-15.
MLA Li, Kuo,et al."Phase relations of BaCoO3 (- delta)-BaInO2.5 and size variation effect of B-site cations on the phase transitions".SOLID STATE IONICS 183.1(2011):7-15.
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