Translated title of the contribution: Recent Advances in SmFe12-based Permanent Magnets

Y. K. Takahashi*, H. Sepehri-Amin, T. Ohkubo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


To realize a sustainable society, "green technology"with low (or even zero) CO2 emissions, is required. A key material in such technology is a permanent magnet because it is utilized for electric-power conversion in several applications including electric vehicles (EVs), hybrid EVs (HEVs), and turbines for wind power generation. To realize highly efficient electric-power conversion, a stronger permanent magnet than Nd-Fe-B is necessary. One potential candidate is a Fe-rich SmFe12-based compound with a ThMn12 structure. In this paper, the phase stability, structure, and intrinsic and extrinsic magnetic properties in both film and bulk forms are reviewed. Based on these results, a possible way to realize a strong SmFe12-based permanent magnet in bulk form is discussed.

Translated title of the contributionRecent Advances in SmFe12-based Permanent Magnets
Original languageJapanese
Pages (from-to)S74-S83
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Publication statusPublished - 2022
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry


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