Synthesis of ferromagnetic ¸-mnalc by reactive sintering

Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Masaki Mizuguchi, Keiichi Koyama

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Ferromagnetic MnAlC (¸-phase) can be synthesized by a single-route conventional reactive sintering method. The maximum magnetization and coercivity were 75.8 Am2/kg and 57 mT, respectively. The ¸-phase fraction was evaluated to be 81 mass% for Mn55Al45C2 annealed at 1273 K. The ¸-phase of Mn55Al45C2 can be synthesized at an annealing temperature from 873 to 1273 K, whereas that of Mn55Al45 cannot be synthesized. It was indicated that the phase stability of the hcp-phase (¾-phase) was improved by adding carbon, resulting in an ¾¸ transformation.

Original languageEnglish
Pages (from-to)130-134
Number of pages5
JournalMaterials Transactions
Volume62
Issue number1
DOIs
Publication statusPublished - 2021 Jan 1
Externally publishedYes

Keywords

  • Ferromagnetic compounds
  • MnAlC
  • Reactive sintering

ASJC Scopus subject areas

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

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