Enhancement of soft magnetic properties of FeCoNbB nanocrystalline alloys with Cu and Ni additions

Fanli Kong, Baolong Shen, Akihiro Makino, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The magnetic properties of annealed Fe42Co42Nb 7B8Cu0.5Ni0.5, Fe 42Co42Nb6B8Cu1Ni 1 and Fe42.5Co42.5Nb6B 8Cu0.5Ni0.5 alloys produced by melt spinning have been studied. By simultaneous addition of Cu and Ni elements, the soft magnetic properties of nanocrystalline FeCoNbB alloy with high Curie temperature were greatly improved. The annealed alloys show high Curie temperature of more than 1223 K and excellent soft magnetic properties, i.e., low coercivity of about 30 A/m and high effective permeability of above 5000, and these values are superior to the typical nanocrystalline HITPERM alloys for high temperature applications.

Original languageEnglish
Pages (from-to)8280-8282
Number of pages3
JournalThin Solid Films
Volume519
Issue number23
DOIs
Publication statusPublished - 2011 Sep 30

Keywords

  • High Curie temperature
  • High saturation magnetic flux density
  • Nanocrystalline alloys
  • Soft magnetic properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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