Development of SmFe7Nx+.ALPHA.Fe Nanocomposite Magnets.

DOI Web Site 12 Citations 15 References

Bibliographic Information

Other Title
  • シナジー磁石と磁性材料　　ＳｍＦｅ７Ｎｘ＋αＦｅ系微細複合磁石の開発
  • フンタイ フンマツ ヤキン キョウカイ ギジュツ シンポショウ ジュショウ キネン コウエン SmFe7Nx アルファ Feケイ ビサイ フクゴウ ジシャク ノ カイハツ

Search this article

Abstract

Nano composite magnet material consisting of hard magnetic SmFe7Nx phase and soft magnetic α Fe phase were developed through a process of rapidly quenching method including heat treatment and nitrogenation. Well balanced magnetic performance were obtained for the alloys with the composition of (Sm8Zr3Fe85Co4)N15. The ranges of grain sizes are 20-40nm which are enough small to create exchange coupling interaction between soft and hard magnetic grains. The ratio of α Fe phases with higher magnetization are measured approximately 20% by TEM observation. TEM-EDX study revealed that SmFe7Nx phase have a composition of richer Sm ratio than that of 1-7stoichiometry. Magnetic properties of those powders are as follows: Br=0.97T, HcJ=752kJ/m, (BH)max=140kJ/m3. Bonded magnets have been fabricated with thermoelastic and thermoplastic resins.

Journal

Citations (12)*help

See more

References(15)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top