FeSiBP metallic glasses with high glass-forming ability and excellent magnetic properties

A. Makino, T. Kubota, M. Makabe, C. T. Chang, A. Inoue

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)


Novel Fe-rich Fe-based bulk glassy alloys with unusual combination of high saturation magnetization (Js) and high glass-forming ability (GFA) have been developed. The representative Fe76Si9B10P5 (atomic percent) alloy exhibits with high Js of 1.51 T, comparable to the Fe-Si-B amorphous alloy ribbons with thickness of about 25 μm in now practical use, because of without any glass-forming metal element other than Fe, which significantly decreases Js, as well as high GFA leading to a rod-shaped specimen of 2.5 mm in diameter. This bulk glassy alloy also shows extremely low coercivity of 0.8 A/m at a glassy state with a higher degree of atomic density of dense random packed structure by optimum annealing. Therefore, the alloy composed of familiar elements with the excellent properties and low material cost should have a great advantage for engineering and industry, and also make a contribution to conservation of environment and earth resources.

Original languageEnglish
Pages (from-to)166-170
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Issue number1-3
Publication statusPublished - 2008 Feb 25


  • Bulk metallic glass
  • Magnetization
  • Soft magnetic material

ASJC Scopus subject areas

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


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