Eur. Phys. J. Appl. Phys.
Volume 51, Number 2, August 2010
|Number of page(s)||3|
|Section||Spintronics, Magnetism and Superconductivity|
|Published online||22 July 2010|
Modeling the Steinmetz's law for soft steel
Department of Engineering Science, University of Oxford, Oxford, UK
2 Department of Materials, Physics of Eotvos Lorant Univ. 1518, P.O. Box 32, Budapest, Hungary
3 Research Institute for Solid State Physics and Optics, 1525, P.O. Box 49, Budapest, Hungary
Corresponding author: * email@example.com
Revised: 3 June 2010
Accepted: 4 June 2010
Published online: 22 July 2010
The loss calculation in soft magnetic materials, used in the manufacturing industry, is still ruled by Steinmetz's simple law. It has remained unchallenged for more than a century, unproven but successfully used by designers of magnetic components. Based on experiments carried out on soft NO Fe–Si and Mn–Zn ferrite samples, in this paper we present a model of Steinmetz's approximation, based on the hyperbolic model. We also make suggestions for the formula's possible extension to a wider range of coercivity, possibly covering not only soft iron but also other groups of magnetic materials as well, used in industry.
© EDP Sciences, 2010
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