• DocumentCode
    806044
  • Title

    Microstructural Changes with N Content in Sm-Fe-N Alloys

  • Author

    Saito, K. ; Nakamura, H. ; Sugimoto, S. ; Okada, M. ; Homma, M.

  • Author_Institution
    Tohoku University.
  • Volume
    9
  • Issue
    6
  • fYear
    1994
  • Firstpage
    218
  • Lastpage
    222
  • Abstract
    The microstructures of Sm2Fe17Nx (0≪x≪6) powders were observed by transmission electron microscopy (TEM). Sm2Fe17N23 powders nitrided in N2 gas have high dislocation densities due to lattice expansion. Sm2Fe17Nx powders nitrided in a mixture of NH3 and H2 gases (3≪x≪6) have cell-like structures. The dislocation density increases and the cell diameter decreases with increasing N content, and Sm2Fe17N5.9 powders consist of 30 to 50 nm in diameter Sm2Fe17Nx microcrystalline grains surrounded by an amorphous phase. Sm2Fe17 powders nitrided above 600°C dissociate into SmN and ¿-Fe phases with characteristic sizes of 10 to 20 nm.
  • Keywords
    Amorphous materials; Gases; Hydrogen; Magnetic properties; Microstructure; Nitrogen; Powders; Saturation magnetization; Temperature; Transmission electron microscopy;
  • fLanguage
    English
  • Journal_Title
    Magnetics in Japan, IEEE Translation Journal on
  • Publisher
    ieee
  • ISSN
    0882-4959
  • Type

    jour

  • DOI
    10.1109/TJMJ.1994.4565983
  • Filename
    4565983
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=806044