• DocumentCode
    965023
  • Title

    Magnetic properties of a new type of rare-earth cobalt magnets Sm2(Co, Cu, Fe, M)17

  • Author

    Ojima, T. ; Tomizawa, S. ; Yoneyama, T. ; Hori, T.

  • Author_Institution
    TDK Electronics Company, Ltd., Ichikawa, Japan
  • Volume
    13
  • Issue
    5
  • fYear
    1977
  • fDate
    9/1/1977 12:00:00 AM
  • Firstpage
    1317
  • Lastpage
    1319
  • Abstract
    The effects of various additive elements on the magnetic properties of Sm-Co-Cu-Fe quaternary alloys were studied. It was found that zirconium was the best additive element for improvement of their magnetic properties. The best properties were so far obtained for an alloy of Co, 25.5wt% Sm, 8wt% Cu, 15wt% Fe, 1.5wt% Zr. The energy product of this alloy attains 30MGOe by a step tempering following the solution treatment. In addition to excellent magnetic properties, Sm2(Co, Cu, Fe, Zr)17type permanent magnets exhibited the desirable temperature coefficient of residual magnetization of 0.03%/°C and a temperature coefficient of intrinsic coercive force of 0.16%/°C.
  • Keywords
    Permanent magnet materials; Additives; Cobalt alloys; Copper alloys; Iron alloys; Magnetic properties; Magnetization; Permanent magnets; Samarium alloys; Temperature; Zirconium;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1977.1059703
  • Filename
    1059703
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=965023