• DocumentCode
    78330
  • Title

    X-Ray Absorption Studies of {\\rm Fe}_{85}{\\rm Si}_{2}{\\rm B}_{8}{\\rm P}_{4}{\\rm Cu}_{1} Alloy

  • Author

    Nishijima, Masahiko ; Matsuura, Makoto ; Yan Zhang ; Takenaka, Kana ; Makino, Akihiro

  • Author_Institution
    Inst. for Mater. Res., Tohoku Univ., Sendai, Japan
  • Volume
    50
  • Issue
    4
  • fYear
    2014
  • fDate
    Apr-14
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    The local structure around Cu in Fe85Si2B8P4Cu1 (NANOMET) and Fe85Si2B12Cu1 alloys was investigated by X-ray absorption fine structure (XAFS) and analytical transmission electron microscopy (TEM). The XAFS measurements indicate that the local structure around Cu atoms for the nanocrystallized Fe85Si2B8P4Cu1 alloy is a bcc-like structure, suggesting that Cu atoms occupy substitutional site of bcc-Fe or Cu atoms form bcc-type clusters in bcc-Fe nanocrystallites. The compositional TEM analysis indicates that Cu atoms distribute in both nanocrystallites and amorphous matrix. These facts suggest that Cu atoms in the Fe85Si2B8P4Cu1 alloy do not form stable fcc-Cu clusters, which act as the nucleation sites in the case of Fe73.5Si13.5B9Nb3Cu1 (FINEMET) alloy.
  • Keywords
    X-ray absorption spectra; amorphous state; boron alloys; copper alloys; crystallites; iron alloys; nanostructured materials; nucleation; phosphorus alloys; silicon alloys; transmission electron microscopy; Fe85Si2B12Cu; Fe85Si2B8P4Cu; TEM; X-ray absorption fine structure; XAFS; amorphous matrix; analytical transmission electron microscopy; bcc-like structure; fcc-Cu cluster; finemet alloy; nanocrystallized alloy; nanomet alloy; nucleation sites; Absorption; Annealing; Atomic measurements; Iron; Nanocrystals; Soft magnetic materials; NANOMET; Nanocrystalline soft magnetic material; X-ray absorption fine structure; transmission electron microscopy (TEM) characterization;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2013.2286425
  • Filename
    6798026
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=78330