Field-ball milling induced anisotropy in magnetic particles


Poudyal N., Altuncevahir B. , Chakka V., CHEN K., BLACK T., LIU J., ...More

JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol.37, no.24, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 24
  • Publication Date: 2004
  • Doi Number: 10.1088/0022-3727/37/24/l01
  • Title of Journal : JOURNAL OF PHYSICS D-APPLIED PHYSICS

Abstract

Nd2Fe14B and Sm2Co17 particles of submicrometre sizes have been prepared by ball milling in a magnetic field. Structural and magnetic characterization reveal that these submicrometre particles milled in a magnetic field, consisting of nanosize grains, exhibit strong magnetic anisotropy compared with the particles milled without a magnetic field. Based on in situ observations of the field-ball milling in a transparent container, the mechanism of field-induced anisotropy in the nanostructured hard magnetic particles is discussed.