Structure and soft magnetic properties of bulk Fe-based glassy alloy prepared by pulse current sintering

Shoji Yoshida, Takao Mizushima, Akihiro Makino, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Structure and soft magnetic properties for the bulk Fe70Al5Ga2P9.65C5.75B4.6Si3 glassy alloy prepared by pulse current sintering with uniaxial pressure were investigated. The sample consolidated in the temperature range of the supercooled liquid region consisted only of amorphous phase and had a very high relative density of 99%. The flux density at the applied magnetic field of 800 A/m, maximum permeability, coercive force and relative permeability at 1 kHz for the sample sintered at 703 K in as-made state are 1.1 T, 7600, 12 A/m and 1700 respectively. The soft magnetic properties of the sintered bulk Fe-based glassy alloy were much superior to the other magnetic materials of consolidated amorphous powders. It is concluded that the high relative density and good soft magnetic properties for the bulk Fe-based glassy alloy should depend upon its high structural homogeneity originated from its high deformability, that is based on the viscous flow arisen from the appearance of supercooled liquid region.

Original languageEnglish
Pages (from-to)1097-1100
Number of pages4
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume63
Issue number9
DOIs
Publication statusPublished - 1999

ASJC Scopus subject areas

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

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