• Low temperature preparation and characterization of intermetallics—Fe2W, FeMo and some ternary Fe-W-Mo systems

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      https://www.ias.ac.in/article/fulltext/boms/007/05/0465-0473

    • Keywords

       

      Fe2W; FeMo; low temperature preparation; photo-electron spectroscopy; Mössbauer spectroscopy

    • Abstract

       

      Monophase Fe2W and FeMo intermetallics have been prepared by hydrogen reduction of Fe2WO6 and FeMoO4 oxides respectively below 1050 K. The ternary intermetallics Fe2W0·9Mo0·1 and FeMo0·9W0·1 have also been prepared by a similar method from the respective substituted oxides. The oxides and the intermetallics have been characterized by x-ray powder diffraction, x-ray photoelectron and Mössbauer spectroscopies. The observed negative isomer shift of Fe in the intermetallics is attributed to an increase in the electron density in Fe by electron transfer from W or Mo to Fe.

    • Author Affiliations

       

      T S Sampathkumar1 R M Mallya1 M S Hegde1

      1. Department of Metallurgy, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore - 560 012, India
    • Dates

       
  • Bulletin of Materials Science | News

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