Radially induced magnetic anisotropy in Fe-Cr-Co permanent magnets

M. Okada, R. Togashi, S. Sugimoto, M. Homma

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Fe-Cr-Co magnets with radial anisotropy were developed by rotating samples in a magnetic aging furnace. The anisotropy is altered by the applied magnetic field strength. The Fe-25 wt. %Cr-12 wt. %Co-0.5 wt. %Ti alloy aged in a magnetic field of 100 Oe yields the magnetic properties of (BH)max=24 kJ m-3 (3 MGOe) and iHc=48 kA m-1 (600 Oe) parallel to radial direction, which are higher than those of (BH)max=7 kJ m-3 (0.9 MGOe), iHc=33 kA m-1, measured parallel to the circumferential direction. The increment of the applied magnetic field over 200 Oe alters the radial anisotropy into a circumferential one. Microstructural studies indicate that the iron-rich phase is elongated parallel to the direction of induced anisotropy. Computations of the magnetic flux distribution in disk samples confirm the experimental observations.

Original languageEnglish
Pages (from-to)5732-5734
Number of pages3
JournalJournal of Applied Physics
Volume64
Issue number10
DOIs
Publication statusPublished - 1988 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Radially induced magnetic anisotropy in Fe-Cr-Co permanent magnets'. Together they form a unique fingerprint.

Cite this