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2014 | 126 | 1 | 156-157
Article title

Minor Loop Scaling Rules for Finemet Type Soft Magnetic Cores

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Abstracts
EN
The validity of the Steinmetz law (P=K B^{n}) has been analyzed using the tanh model, by splitting the minor loops in three or two components, corresponding to different magnetization processes at different excitation levels. It is shown that the original Steinmetz law with the exponent n=1.6 is valid only at and above the coercive field, for intermediate and high induction values, where all the three magnetization processes are present. At small magnetization levels the exponent is about 3, much higher than the original proposed value.
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Contributors
author
  • Wigner Research Center for Physics, Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, 1525 Budapest, P.O.B.49, Hungary
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
References
  • [1] C.P. Steinmetz, The Electrician January 2, 261 (1891)
  • [2] C.P. Steinmetz, Proceedings of the IEEE 72, 196 (1984), reprinted from American Institute of Electrical Engineers Transactions 9, 3 (1892), doi: 10.1109/PROC.1984.12841
  • [3] F.J.G. Landgraf, M. Emura, M.F. de Campos, J. Magn. Magn. Mater. 320, e531 (2008), doi: 10.1016/j.jmmm.2008.04.011
  • [4] S. Takahashi and L. Zhang, J. Phys.Soc. Japan 73, 1567 (2004), doi: 10.1143/JPSJ.73.1567
  • [5] S. Takahashi, S. Kobayashi and T. Shishido, J. Phys.: Condens.Matter 20, 035217 (2008), doi: 10.1088/0953-8984/20/03/035217
  • [6] R.M. Bozorth, Ferromagnetism, Van Nostrand, N.Y., 1951, p. 782
  • [7] L.K. Varga, Gy. Kovács and J. Takács, J. Magn. Magn. Mater. 320, L26 (2008), doi: 10.1016/j.jmmm.2007.06.008
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Publication order reference
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bwmeta1.element.bwnjournal-article-appv126n1074kz
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