Magnetic field-induced nitridation of Sm2Fe17

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

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7 Citations (Scopus)


Nitridation of Sm2Fe17 powder was performed under a 5-T magnetic field for the temperature range 623–743 K to clarify the magnetic field effect on nitridation. Applying a magnetic field of 5 T promoted nitridation by approximately 0.6 nitrogen atoms per formula unit compared with zero-field nitrogenation, and almost fully-nitride Sm2Fe17N2.9 was obtained at 743 K. The magnetic field effect was discussed using a grain growth model based on magnetic properties of nitride-poor Sm2Fe17Nx (x < 3) phase and fully-nitride Sm2Fe17N3 phase. The obtained results show that in-field nitridation helps to synthesize nitride Sm2Fe17N3 system in the present condition.

Original languageEnglish
Article number155193
JournalJournal of Alloys and Compounds
Publication statusPublished - 2020 Sept 15


  • Gas-solid reactions
  • High magnetic fields
  • Magnetic measurements
  • Nitride materials
  • Permanent magnets


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