In-Field Annealing and Quenching for Ferromagnetic MnBi under 19 T

Ryota Kobayashi, Yoshifuru Mitsui, Kohoki Takahashi, Satoshi Uda, Keiichi Koyama

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


An in-field annealing-quenching furnace utilized for magnets with a 52 mm experimental bore was developed. The cooling rate from 663 to 473 K was 38 K/s under a magnetic field of 19 T. The phase boundary between the ferromagnetic MnBi and the paramagnetic Mn1.08Bi was examined using this furnace. The phase boundary was confirmed around 663 K. It was found that the MnBi grain became elongated during recrystallization under 19 T.

Original languageEnglish
Article number1000204
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2019 Feb


  • Ferromagnetic material
  • high magnetic fields
  • in-field quenching

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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