Formation and properties of BaxFe3-xO4 with spinel structure by mechanochemical reaction of -Fe2O3 and BaCO3

	Formation and properties of BaxFe3-xO4 with spinel structure by mechanochemical reaction of -Fe2O3 and BaCO3
其他题名	论文其他题名
	He Q.; Wang H. Z.; Wen G. H.; Sun Y.; Yao B.
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	9258388
卷号	486 期号:1—2 页码:246-249
摘要	Magnetic BaxFe3-xO4 (x 0.23) with spinel structure was fabricated by ball milling of mixture of BaCO3 and nonmagnetic -Fe2O3 powders, and the molar ratio of BaCO3 and -Fe2O3 is 1:6. In the milling process, a mechanochemical reaction took place between BaCO3 and -Fe2O3, and Ba cation incorporated into -Fe2O3 with rhombohedral structure to form a -(Fe,Ba)2O3 solid solution. The Ba content in the -(Fe,Ba)2O3 increased with increasing milling time, when the Ba content exceeded a limited solubility, the -(Fe,Ba)2O3 transformed into a phase of BaxFe3-xO4 with spinel structure, where the Ba cation occupied an octahedral site or tetrahedral site. The product obtained in the balling process was different from that prepared in the annealing process at atmospheric pressure, which was BaFe2O4 with orthorhombic structure. Accompanying the crystal structure transition from -(Fe,Ba)2O3 to BaxFe3-xO4, the magnetic properties also changed from nonmagnetism into ferromagnetism. The saturation magnetization was 53.3 emu/g and coercivity was 113.7 Oe. The mechanism of transitions of the crystal structure was discussed in the present work. 2009 Elsevier B.V. All rights reserved.
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24481
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	He Q.,Wang H. Z.,Wen G. H.,et al. Formation and properties of BaxFe3-xO4 with spinel structure by mechanochemical reaction of -Fe2O3 and BaCO3[J]. Journal of Alloys and Compounds,2009,486(1—2):246-249.
APA	He Q.,Wang H. Z.,Wen G. H.,Sun Y.,&Yao B..(2009).Formation and properties of BaxFe3-xO4 with spinel structure by mechanochemical reaction of -Fe2O3 and BaCO3.Journal of Alloys and Compounds,486(1—2),246-249.
MLA	He Q.,et al."Formation and properties of BaxFe3-xO4 with spinel structure by mechanochemical reaction of -Fe2O3 and BaCO3".Journal of Alloys and Compounds 486.1—2(2009):246-249.

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