Magnetic field effect on nitrogenation of Sm2Fe17

Keiichi Koyama, Masahira Onoue, Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Yoshiya Uwatoko

Research output: Contribution to journalArticlepeer-review

Abstract

Nitrogenation of Sm2Fe17 powder was performed under a zero field and a magnetic field of 5 T at 623, 673 and 743 K to clarify the magnetic field effect on nitrogenation. Applying a magnetic field of 5 T induced nitrogenation compared with zero-field nitrogenation, and almost fully nitride Sm2Fe17N2.9 was obtained at 743 K. Mössbauer spectroscopy results suggested that a 5-T magnetic field promoted the phase transformation to the fully-nitride Sm2Fe17N3 phase. The magnetic field effect was discussed based on the magnetic energy gain and magnetic properties of host Sm2Fe17 and fully nitride Sm2Fe17N3

Original languageEnglish
Pages (from-to)1487-1491
Number of pages5
JournalMaterials Transactions
Volume61
Issue number8
DOIs
Publication statusPublished - 2020 Aug 1

Keywords

  • Gas-solid reaction
  • Magnetic field effect
  • Nitrogenation
  • SmFeN

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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