Magnetic properties and structure of Fe-Pt-M-B (M = Zr, Nb and Ti) alloys produced by quenching technique

Akihiro Makino, Teruo Bitoh, Akihisa Inoue, Yoshihiko Hirotu

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The L10-FePt nanocrystalline phase is directly formed by the rapid quenching of the (Fe0.55Pt0.45)-M-B (M = Zr, Nb and Ti) alloy melt. The as-quenched alloys exhibit coercivity higher than 200 kA/m. The direct formation of L10-FePt takes place at the compositional range where the equilibrium disordered fcc phase disappears by decreasing of melting temperature into the L10-FePt phase stable region with simultaneous addition of the M elements and B, presumably because of the strong interaction of Pt-M pairs.

Original languageEnglish
Pages (from-to)614-617
Number of pages4
JournalJournal of Alloys and Compounds
Volume434-435
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2007 May 31

Keywords

  • Calorimetry
  • Liquid quenching
  • Magnetic measurements
  • Nanostructures
  • Permanent magnets

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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