• DocumentCode
    1028673
  • Title

    Phase transformation at high temperature and coercivity of Sm(Co,Cu,Fe,Zr)7-9 magnet alloys

  • Author

    Mori, Y. ; Umeda, T. ; Kimura, Y.

  • Author_Institution
    University of Tokyo, Tokyo, Japan
  • Volume
    23
  • Issue
    5
  • fYear
    1987
  • fDate
    9/1/1987 12:00:00 AM
  • Firstpage
    2702
  • Lastpage
    2704
  • Abstract
    The phase diagram near compositions of magnet alloys, that is, Sm-Co-13.0at%Cu-10.0at%Fe, Sm-Co-7.0at%Cu-22.0at%Fe and Sm-Co-7.0at%Cu-22.0at%Fe-2.0 at%Zr sections of the phase diagram were determined in the Sm content range from 6 to 16 at%. Furthermore, relationships between phase transformation at high temperature and coercivity were investigated. The Sm2(Co,Cu,Fe,Zr)17(Zr=0 and 2.0at%) intermetallic compound (2/17 phase) has the hexagonal TbCu7, hexagonal Th2Ni17or rhombohedral Th2Zn17structure depending on the quantity of Cu, Fe and Zr, and temperature. The alloys quenched after homogenizing treatment, by which the 2/17 phase with TbCu7structure is obtained, can possess high coercivity after the aging treatment.
  • Keywords
    Magnetic thermal factors; Permanent magnet materials; Aging; Coercive force; Intermetallic; Iron; Magnetic properties; Manufacturing; Permanent magnets; Samarium alloys; Temperature dependence; Zirconium;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1987.1065423
  • Filename
    1065423
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1028673