Liquid-immiscibility-induced formation of micron-scale crystalline/ amorphous composite powder

Y. Yu, Y. Takaku, Makoto Nagasako, C. P. Wang, X. J. Liu, Ryosuke Kainuma, K. Ishida

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Liquid immiscible alloy systems present a unique opportunity in developing the micron-scale crystalline/amorphous composite powder using the gas atomization method. On the basis of the CALPHAD approach, the compositions of Co-Si-B-Cu alloys system exhibiting the liquid immiscibility have been designed. The produced gas-atomized powders show a Cu-rich crystalline/Co-Si-B rich amorphous composite microstructure. The above-mentioned powders possess almost the same coercive force as that of Co-Si-B amorphous powders, while their saturation magnetization decreases with increasing Cu concentration. Such Cu-rich crystalline/Co-Si-B rich amorphous composite powders may have applications in the field of heat release of soft magnetic devices and ferrofluids.

Original languageEnglish
Pages (from-to)95-100
Number of pages6
JournalIntermetallics
Volume25
DOIs
Publication statusPublished - 2012 Jun 1

Keywords

  • A. Composites
  • B. Glasses, metallic
  • C. Rapid solidification processing
  • F. Electron microscopy, transmission
  • G. Magnetic applications

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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