• DocumentCode
    852569
  • Title

    High coercivities in Sm-Fe-Tm magnets

  • Author

    Schultz, L. ; Schnitzke, K. ; Wecker, J. ; Katter, M.

  • Author_Institution
    Siemens AG, Erlangen, West Germany
  • Volume
    26
  • Issue
    5
  • fYear
    1990
  • fDate
    9/1/1990 12:00:00 AM
  • Firstpage
    1373
  • Lastpage
    1375
  • Abstract
    High coercivities have been obtained in three Sm-Fe-TM phases (TM=V, Ti, Zr) prepared by mechanical alloying and a subsequent heat treatment at relatively low temperatures. In Sm-Fe-V with the ThMn12 crystal structure, coercivities up to 11.8 kOe were achieved; in Sm-Fe-Zr with the PuNi3 crystal structure, coercivities up to 14.8 kOe were achieved; and in ω-phase Sm-Fe-Ti, giant coercivities up to 64 kOe (at room temperature) were achieved. The temperature dependence of the coercivity also differs favorably from that of Nd-Fe-B
  • Keywords
    coercive force; ferromagnetic properties of substances; iron alloys; permanent magnets; samarium alloys; titanium alloys; vanadium alloys; zirconium alloys; Sm-Fe-Ti; Sm-Fe-V; Sm-Fe-Zr; giant coercivities; high coercivity; temperature dependence; Alloying; Amorphous magnetic materials; Anisotropic magnetoresistance; Coercive force; Heat treatment; Magnetic anisotropy; Magnetic properties; Permanent magnets; Perpendicular magnetic anisotropy; Saturation magnetization;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.104382
  • Filename
    104382