The effect of grain-size distribution on coercivity in nanocrystalline soft magnetic alloys

Teruo Bitoh, Akihiro Makino, Akihisa Inoue

Research output: Contribution to journalConference articlepeer-review

25 Citations (Scopus)

Abstract

A simple model considering grain-size distribution has been fabricated based on the random anisotropy model. The model indicates that the effective magnetic anisotropy increases with increasing width of the grain-size distribution even if the mean grain size is constant. The coercivity (H c) of some nanocrystalline Fe-Nb-B(-P-Cu) alloys with different grain-size distribution has been calculated. Our model explains well the dependence of Hc on the grain-size distribution.

Original languageEnglish
Pages (from-to)1445-1446
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
DOIs
Publication statusPublished - 2004 May 1
Externally publishedYes
EventProceedings of the International Conference on Magnetism - Rome, Italy
Duration: 2003 Jul 272003 Aug 1

Keywords

  • Grain-size distribution
  • Nanocrystalline soft magnetic alloy
  • Random anisotropy model
  • Structural inhomogeneity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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