Reactive sintering process of ferromagnetic MnBi under high magnetic fields

Yoshifuru Mitsui, Rie Y. Umetsu, Kohki Takahashi, Keiichi Koyama

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The magnetic field effect on the reactive sintering process of MnBi was investigated. Magnetic-field-induced enhancement of the reaction was found to be exhibited at the initial stages. The coercivity field decreased with an increase in the in-field annealing time. The kinetics of the reaction were in good agreement with the diffusion-controlled reaction model. It is suggested that the decrease in activation energy at the initial stages of reaction increased the amount of formed MnBi phases, resulting in enhancement of the reaction Mn + Bi to MnBi phase by in-field reactive sintering.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Publication statusPublished - 2018 May 1


  • Activation energy
  • High magnetic fields
  • MnBi
  • Reactive sintering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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