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Modeling the Steinmetz's law for soft steel

Published online by Cambridge University Press:  22 July 2010

J. Takacs ,
Gy. Kovacs  and
L. K. Varga
J. Takacs*
Affiliation:
Department of Engineering Science, University of Oxford, Oxford, UK
Gy. Kovacs
Affiliation:
Department of Materials, Physics of Eotvos Lorant Univ. 1518, P.O. Box 32, Budapest, Hungary
L. K. Varga
Affiliation:
Research Institute for Solid State Physics and Optics, 1525, P.O. Box 49, Budapest, Hungary
*
* jenotakacs@aol.com
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Abstract

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.

Information

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 51 , Issue 2 , August 2010 , 20801
Copyright
© EDP Sciences, 2010

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References

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