Preparation of Fe-Pt-Si amorphous ribbons and their coercivity after crystallization

Tokujiro Yamamoto, Akihiro Omori, Akihiro Makino, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

FexPtySiz (x = 60-90, y = 10-70, z = 10-40) ribbons were prepared using a melt-spinning technique. Fully amorphous ribbons were obtained for alloys containing approximately 20-30 at%Si. Crystallization of the amorphous ribbons yielded composite structures of L1 0 FePt and Pt-Si intermetallic compounds for Fe45Pt 35Si20 and Fe47Pt28Si25. Fe45Pt35Si20 amorphous ribbons were annealed at 700K for 180min, producing a grain size of approximately 40 nm in diameter, and a maximum coercivity of 160 kA/m.

Original languageEnglish
Pages (from-to)74-79
Number of pages6
JournalMaterials Transactions
Volume48
Issue number1
DOIs
Publication statusPublished - 2007 Jan

Keywords

  • Amorphous materials
  • Magnetic materials
  • Microstructure
  • Nanocrystalline materials

ASJC Scopus subject areas

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

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