| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-609 - C8-610 | |
| DOI | https://doi.org/10.1051/jphyscol:19888278 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-609-C8-610
DOI: 10.1051/jphyscol:19888278
1 Institute for Materials Science and Engineering, Warsaw, University of Technology 02-524 Warszawa, Poland
2 Böhler Ybbstalwerke A-3333 Böhlerwerk, Austria
3 Institute for Experimental Physics, TU-Wien, A-1040, Austria
J. Phys. Colloques 49 (1988) C8-609-C8-610
DOI: 10.1051/jphyscol:19888278
THE EFFECT OF Al ADDITION ON THE MAGNETIC PROPERTIES OF SINTERED Nd-Fe-B MAGNETS
M. Leonowicz1, S. Heisz2 et G. Hilscher31 Institute for Materials Science and Engineering, Warsaw, University of Technology 02-524 Warszawa, Poland
2 Böhler Ybbstalwerke A-3333 Böhlerwerk, Austria
3 Institute for Experimental Physics, TU-Wien, A-1040, Austria
Abstract
Al additions to sintered Nd-Fe-B magnets increase the coercivity by 140 % and decrease the anisotropy field, the remanence and the Curie temperature. Our results indicate that Al is located in the 2:14:1 phase and in an additional isotropic hard magnetic phase which enhances the coercivity. A microcrystalline model of magnetization reversal has been proposed.