| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-677 - C8-678 | |
| DOI | https://doi.org/10.1051/jphyscol:19888308 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-677-C8-678
DOI: 10.1051/jphyscol:19888308
Philips Research Laboratories, 5600 JA Eindhoven, The Netherlands
J. Phys. Colloques 49 (1988) C8-677-C8-678
DOI: 10.1051/jphyscol:19888308
INTERPRETATION OF M - H LOOPS OF PERMANENT MAGNETS CONTAINING TWO HARD-MAGNETIC PHASES
R. van Mens, A. J. C. v. d. Borst et M. BrouhaPhilips Research Laboratories, 5600 JA Eindhoven, The Netherlands
Abstract
Often M - H hysteresis loops of Nd-Fe-B type materials are constricted or show steps, which is currently ascribed to the presence of a soft-magnetic phase. By means of model calculations with a finite element method it is shown that the typical shape of the hysteresis loop is very sensitive to the relative amount and distribution of the hard and soft-magnetic phases.