| Numéro |
J. Phys. Colloques
Volume 46, Numéro C6, Septembre 1985
MMA' 85Europhysics Conference on Magnetic Materials for Applications |
|
|---|---|---|
| Page(s) | C6-385 - C6-388 | |
| DOI | https://doi.org/10.1051/jphyscol:1985671 | |
Europhysics Conference on Magnetic Materials for Applications
J. Phys. Colloques 46 (1985) C6-385-C6-388
DOI: 10.1051/jphyscol:1985671
ON THE EFFECT OF GRAIN SIZE ON MAGNETIC LOSSES OF 3% NON-ORIENTED SiFe
G. Bertotti1, G. Di Schino2, A. Ferro Milone1 et F. Fiorillo11 Istituto Elettrotecnico Nazionale Galileo Ferraris and G.N.S.M.-C.I.S.M., I-10125 Torino, Italy
2 TERNI S.p.A., Terni, Italy
Résumé
La variation des pertes en excès Pe, statique Ph et totales Pt avec la taille moyenne des grains g a été étudiée sur le FeSi 3% non orienté. Les résultats montrent que Ph varie en fonction de g selon la loi Ph = Po + A/√g, où Po et A sont respectivement liés à l'effet des impuretés précipitées et à la texture. On obtient aussi que Pe dépend de g selon l'expression Pe = B√g.
Abstract
The grain size dependence of total, static and excess losses has been investigated in 3% non-oriented SiFe laminations, produced by continuous casting. It is found that the static loss Ph varies with the average grain diameter g according to the law Ph = Po+A/√g, where Po and A are respectively related to the effect of precipitated impurities and to the texture. It is also obtained that the excess loss can be described by the expression Pe = B√g.