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题名: Thermally induced phase transition and magnetic properties of Fe-FeSi2 with core-shell structure
作者: Li, Miao1;  Chen, Xiao1;  Guan, Jingchao1;  Wang, Junhu2;  Liang, Changhai1
关键词: diffusion ;  intermetallic compounds ;  magnetic properties ;  Mossbauer spectroscopy ;  thermal induction
刊名: PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
发表日期: 2013-12-01
DOI: 10.1002/pssa.201330076
卷: 210, 期:12, 页:2710-2715
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Materials Science, Multidisciplinary ;  Physics, Applied ;  Physics, Condensed Matter
研究领域[WOS]: Materials Science ;  Physics
英文摘要: Metal silicides are complicated materials due to the complex phase behavior between metals and silicon and the complex stoichiometries and structures of their resulting compounds. Iron silicide nanoparticles with various phases have been successfully controlled and synthesized via thermal annealing of a core-shell structure Fe-FeSi2 sample at atmospheric pressure under Ar and H-2 atmospheres. The results from X-ray diffraction, transmission electron microscopy, and Mossbauer spectroscopy indicated that the crystal transformation proceeded from Fe-FeSi2 to FeSi and Fe3Si with increasing the annealing time and temperature. The samples presented ferromagnetic properties, and the saturation magnetization changed with the annealing temperature due to the aggregation of the nanoparticles. This thermal annealing method can also be applied to the synthesis of other metal silicides with different metal/silicon ratios that are otherwise difficult to synthesize. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
关键词[WOS]: OPTICAL-PROPERTIES ;  SILICON ;  IRON ;  FE3SI ;  SI ;  HYDROGENATION ;  NANOPARTICLES ;  DEPOSITION ;  NANOWIRES ;  SILICIDES
语种: 英语
WOS记录号: WOS:000328452500029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137695
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Lab Adv Mat & Catalyt Engn, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Li, Miao,Chen, Xiao,Guan, Jingchao,et al. Thermally induced phase transition and magnetic properties of Fe-FeSi2 with core-shell structure[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,2013,210(12):2710-2715.
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