Improvement of soft magnetic properties of nanocrystalline Fe-M-B (M=Zr and Nb) alloys and their applications

Akihisa Inoue, Akihiro Makino

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

With the aim of developing good soft magnetic materials, we examined the magnetic properties of nanocrystalline Fe-M-B alloys containing various additional elements. The nanoscale bcc Fe-Zr-Nb-B-Cu alloys exhibited excellent soft magnetic characteristics of 1.5 to 1.6 T for saturation magnetization (Bz), 1 to 2 A/m for coercive force (Hc), 10×104 to 12×104 for permeability (μe) at 1 kHz and nearly zero saturated magnetostriction (λ5) which had not been achieved for soft magnetic materials reported up to date. The excellent soft magnetic characteristics have already enabled the practical use as pulse transformers for portable telephones which require high μe above 105 at 1 kHz and high Bz above 1.5 T. The application fields are hereafter expected to increase significantly because of the excellent soft magnetic properties which have been obtained only for the present materials.

Original languageEnglish
Pages (from-to)403-412
Number of pages10
JournalNanostructured Materials
Volume9
Issue number1-8
DOIs
Publication statusPublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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