PL EN


Preferences help
enabled [disable] Abstract
Number of results
2017 | 131 | 4 | 684-686
Article title

Investigation of Magnetization Processes from the Energy Losses in Soft Magnetic Composite Materials

Content
Title variants
Languages of publication
EN
Abstracts
EN
Soft magnetic composite materials are composed of small ferromagnetic particles insulated from each other. It gives them some very good properties e.g. the magnetic isotropy and low total energy losses at medium to higher frequencies. On the other hand, their structure gives rise to the negative aspects as the inner demagnetizing fields, resulting in some specifics in magnetization processes leading to the worsening of soft magnetic properties, particularly the excess losses increase and a lowering of permeability. The frequency dependence of excess losses, the low and high induction loss components and the inner demagnetization factors of soft magnetic composites were investigated in order to reveal the proportions of the reversible and irreversible magnetization processes. Higher excess losses were observed in samples with smaller particles or higher non-ferromagnetic content (resin+pores), in which the inner demagnetizing fields were higher. It was explained by lower effective number of movable domain walls in those samples, thus less irreversible magnetization processes. This was confirmed by low and high induction loss analysis, where total losses were divided into low and high induction loss components and plotted vs. frequency.
Keywords
EN
Contributors
  • Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 04154 Košice, Slovakia
author
  • Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 04154 Košice, Slovakia
  • Institute of Electrochemistry, Technical University of Clausthal, 38678 Clausthal-Zellerfeld, Germany
author
  • Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 04154 Košice, Slovakia
author
  • Institute of Materials Research, Slovak Academy of Science, Watsonova 47, 04001 Košice, Slovakia
author
  • Institute of Materials Research, Slovak Academy of Science, Watsonova 47, 04001 Košice, Slovakia
References
  • [1] K.H.J. Buschow, Concise Encyclopedia of Magnetic and Superconducting Materials, Elsevier, Oxford 2005 http://www.elsevier.com/books/concise-encyclopedia-of-magnetic-and-superconducting-materials/buschow/978-0-08-044586-1
  • [2] O. Barrière, C. Appino, F. Fiorillo, C. Ragusa, H. Ben Ahmed, M. Gabsi, F. Mazaleyrat, M. LoBue, J. Appl. Phys. 109, 07A317 (2011), doi: 10.1063/1.3554207
  • [3] Y. Peng, J. Nie, W. Zhang, J. Mab, C. Bao, Y. Cao, J. Magn. Magn. Mater. 399, 88 (2016), doi: 10.1016/j.jmmm.2015.09.069
  • [4] B.V. Neamtu, O. Geoffroy, I. Chicinas, O. Isnard, Mater. Sci. Eng. B 177, 661 (2012), doi: 10.1016/j.mseb.2012.03.029
  • [5] Z. Birčáková, P. Kollár, V. Vojtek, R. Bureš, M. Fáberová, Acta Phys. Pol. A 126, 114 (2014), doi: 10.12693/APhysPolA.126.114
  • [6] P. Kollár, Z. Birčáková, V. Vojtek, J. Füzer, R. Bureš, M. Fáberová, J. Magn. Magn. Mater. 388, 76 (2015), doi: 10.1016/j.jmmm.2015.04.008
  • [7] E. Kneller, Ferromagnetismus, Springer, Berlin 1962, doi: 10.1007/978-3-642-86695-1
  • [8] Z. Birčáková, P. Kollár, J. Füzer, M. Lauda, R. Bureš, M. Fáberová, IEEE Trans. Magn. 50, 6301507 (2014), doi: 10.1109/TMAG.2014.2334273
  • [9] G. Bertotti, IEEE Trans. Magn. 24, 621 (1988), doi: 10.1109/20.43994
  • [10] F.J.G. Landgraf, J. Teixeira, M. Emura, M.F. Campos, C.S. Muranaka, Mater. Sci. Forum 302-303, 440 (1999), doi: 10.4028/www.scientific.net/MSF.302-303.440
  • [11] Z. Birčáková, P. Kollár, B. Weidenfeller, J. Füzer, M. Fáberová, R. Bureš, J. Alloys Comp. 645, 283 (2015), doi: 10.1016/j.jallcom.2015.05.121
  • [12] B. Weidenfeller, M. Anhalt, J. Magn. Magn. Mater. 322, 69 (2010), doi: 10.1016/j.jmmm.2009.08.030
  • [13] R. Bureš, M. Fáberová, M. Strečková, Z. Birčáková, P. Kollár, J. Füzer, Acta Phys. Pol. A 126, 140 (2014), doi: 10.12693/APhysPolA.126.140
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv131n4024kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.