Search for content and authors
 

Study of the magnetic interaction in nanocrystalline Pr-Fe-Co-Nb-B permanent magnets.

Marcin J. Dospial 1Danuta D. Płusa 1Urszula U. Kotlarczyk 1Barbara Ślusarek 2Tadeusz T. Mydlarz 3

1. Institute of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, Częstochowa 42-200, Poland
2. Tele- & Radio-Technical Institute of Warsaw, Warszawa, Poland
3. International Laboratory of High Magnetic Fields and Low Temperatures (ML), Gajowicka 95, Wrocław 53-421, Poland

Abstract

The magnetic properties of an isotropic, epoxy resin bonded magnets made from Pr-Fe-Co-Nb-B powder produced by using the rapid solidification method were investigated. The magnetization reversal process and magnetic parameters were examined by measurements of virgin magnetization curve, major and minor hysteresis loops and sets of recoil curves using LakeShore VSM mounted in 2T electromagnet. The virgin magnetization curve was used in order to determine the differential susceptibility as a function of an applied magnetic field. From the minor hysteresis loops the field dependencies of the coercivity and remanence were derived. It was found that the magnetization reversal process is the combination of irreversible pinning of domain walls and reversible rotation of magnetization vector in single domain grains.

 

Legal notice
  • Legal notice:
 

Related papers

Presentation: Poster at E-MRS Fall Meeting 2009, Symposium H, by Marcin J. Dospial
See On-line Journal of E-MRS Fall Meeting 2009

Submitted: 2009-06-05 10:23
Revised:   2009-06-07 00:48