• DocumentCode
    1077778
  • Title

    Crystallization, morphology and magnetic properties of melt-spun (Nd,Pr,Dy)2(Fe,Co,Mo)14B/α-Fe nanocomposites

  • Author

    Cui, B.Z. ; Han, K. ; Zhang, Y. ; Liu, J.P. ; Garmestani, H. ; Liu, S. ; Schneider-Muntau, H.J.

  • Volume
    40
  • Issue
    4
  • fYear
    2004
  • fDate
    7/1/2004 12:00:00 AM
  • Firstpage
    2867
  • Lastpage
    2870
  • Abstract
    Crystallization, phase evolution, nanostructure, exchange coupling, and hard magnetic properties of melt-spun Nd2.4Pr5.6Dy1Fe85B6 and Nd2.4Pr5.6Dy1Fe78Co6Mo1B6 nanocomposites have been studied. All the Nd2.4Pr5.6Dy1Fe85B6 alloys annealed for 30 s at 565°C or above contain nanostructured α-Fe and Nd2Fe14B-type (2:14:1) phases, whereas Nd2.4Pr5.6Dy1Fe78Co6Mo1B6 alloys annealed at 600°C or below are mainly composed of α-Fe and a metastable 1:7 phase. A small amount of 2:14:1 phase forms after annealing at 600°C. When annealed at 640°C or above, the hard phase in Nd2.4Pr5.6Dy1Fe78Co6Mo1B6 alloys is the 2:14:1 phase rather than the 1:7 phase. The differences in magnetic properties of the Nd2.4Pr5.6Dy1Fe85B6 and Nd2.4Pr5.6Dy1Fe78Co6Mo1B6 nanocomposites at different anneal temperatures result from the different nanostructures, exchange coupling and phase components present in the alloys, in particular from the different amount of the 1:7 phase.
  • Keywords
    annealing; boron alloys; cobalt alloys; crystal morphology; crystallisation; dysprosium alloys; ferromagnetic materials; iron alloys; melt spinning; molybdenum alloys; nanocomposites; neodymium alloys; praseodymium alloys; (Nd,Pr,Dy)2(Fe,Co,Mo)14B/α-Fe; (NdPrDy)2(FeCoMo)14B-Fe; Nd2.4Pr5.6Dy1Fe78Co6Mo1B6; Nd2.4Pr5.6Dy1Fe85B6; alloys annealing; anneal temperatures; crystallization; exchange coupling; hard magnetic properties; melt-spun; morphology; nanocomposites; nanostructure; phase evolution; phase transformation; Annealing; Cobalt alloys; Couplings; Crystallization; Iron alloys; Magnetic properties; Metastasis; Morphology; Nanocomposites; Neodymium; 1:7 and 2:14:1 phases; magnetic properties; nanostructure; phase transformation;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2004.832273
  • Filename
    1325668
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1077778