Low-temperature synthesis of β-FeSi2 powder using a sodium melt

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    Abstract

    β-FeSi2 powder was prepared by heating a mixture of Fe and Si powders with Fe/Si molar ratios of 1:2.25-2.50 in a Na melt at 773-1073 K for 1.5-24 h under an Ar atmosphere, while no β-FeSi2 was obtained at 1073 K for 24 h without Na. The β-FeSi2 phase was identified by powder X-ray diffraction. The primary and secondary grain sizes of β-FeSi2 powder observed by transmission electron microscopy and scanning electron microscopy were 100-400 nm and 5-80 μm, respectively.

    Original languageEnglish
    Pages (from-to)6047-6051
    Number of pages5
    JournalChemistry of Materials
    Volume19
    Issue number24
    DOIs
    Publication statusPublished - 2007 Nov 27

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Chemistry

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