Distribution of Nb and Co in an α-Fe/Nd2Fe14B-type nanocomposite

M. W. Chen, A. Sakai, X. M. Wang, A. Inoue, Toshio Sakurai

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    8 Citations (Scopus)


    Atom probe field ion microscopy was employed to investigate the distribution of the alloying elements in a nanocrystalline Fe76.5Nd8Co8B6Nb1.5 (at. %) alloy consisting of soft magnetic α-Fe and hard magnetic Nd2Fe14B. It was found that Co atoms prefer to partition into Nd2Fe14B phase. The partitioning factor of Co in the hard magnetic phase is approximately 2 with respect to the soft magnetic phase, α-Fe. Atom probe concentration and integrated depth profiles showed that the Nb atoms segregate at the interfaces between the soft and the hard magnetic phases. Based on the atom probe results, the beneficial effects of Nb and Co on the microstructure and the hard magnetic properties of the nanocomposite are discussed.

    Original languageEnglish
    Pages (from-to)6928-6930
    Number of pages3
    JournalJournal of Applied Physics
    Issue number11
    Publication statusPublished - 2000 Dec

    ASJC Scopus subject areas

    • Physics and Astronomy(all)


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