Synthesis of mono-sized Fe-Co based metallic glass particles by pulsated orifice ejection method

Noriharu Yodoshi, Ayako Miura, Wei Dong, Akira Kawasaki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Metallic glasses are potentially applied for accurate micro parts because of their good formability and transferability as well as high mechanical properties and excellent magnetic properties. So the raw materials that the volume is precisely controlled are needed for a highly accurate processing. In this study, mono-sized spherical particles of Fe-Co-based metallic glass were prepared by Pulsated Orifice Ejection Method (POEM) and the capabilities of their micro-forming process in the glass transition temperature were investigated. Mono-sized spherical particles of Fe-Co-based metallic glass particles with 200-500 μm of diameter have been obtained by Pulsated Orifice Ejection Method (POEM). The XRD pattern of the particles shows only broad peaks without any crystalline peak. A bright field TEM image of the particles and the selected area diffraction patterns shows only halo patterns that indicate fully amorphous phase. DSC curve shows that supercooled liquid region was ΔT= 48 K and a TTT curve can be constructed by isothermal DSC.

Original languageEnglish
Pages (from-to)686-692
Number of pages7
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume72
Issue number9
DOIs
Publication statusPublished - 2008 Sep 1

Keywords

  • Iron-cotalt-system
  • Metallic glass
  • Micro particles
  • Mono-sized particles
  • Pulsated orifice ejection method (POEM)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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