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Frequency Dependence of Magnetization Behavior for FeSi Materials With Different Thickness

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5 Author(s)
J. Schneider ; Institut für Metallformung,, Technische Universität Bergakademie Freiberg,, Freiberg,, Germany ; S. Reichelt ; A. Stocker ; B. Fachmann
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Electrical steels with lower thickness become more and more important to realize electrical machines with high nominal frequency due to high number of the poles and to provide higher power at a given volume of the electrical machine. For application at higher frequencies the dynamic magnetization processes have to be analyzed. In the paper the experimental data for frequency dependence of the magnetization curves, the coercive force, the permeability, and of the magnetic losses for nonoriented electrical steels with thicknesses in the range of 0.10 mm up to 0.50 mm will be reported. For thin electrical steels a different character of the dynamic magnetization behavior at increasing frequency of the applied external field compared to thicker materials is observed. This is attributed to differences in the number of moving walls.

Published in:

IEEE Transactions on Magnetics  (Volume:48 ,  Issue: 4 )