AC Magnetic Properties of Vitroperm Based Composite Materials |
| P. Kollára, L. Hegedüsa, J. Füzera, R. Burešb and M. Fáberováb
aInstitute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia bInstitute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia |
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| The aim of this work was to investigate the influence of resin content on AC magnetic properties of Vitroperm 800-based composite material to extend possibilities for application of this kind of material at higher frequency (up to 100 kHz). The samples of composite material were prepared in the form: of the ring with outer diameter of 25 mm, inner diameter of 18 mm and height approximately 3 mm. Powder mixtures were prepared from Vitroperm 800 in partial nanocrystalline state and commercial termoset resins by mechanical mixing. The AC magnetic properties (losses) at maximum induction up to 0.5 T were measured by MATS-2010SA loop tracer in frequency range 1-100 kHz. The specific resistivity of the material was measured by the van der Pauw method. The magnetic properties of the composite rings were compared with the properties of the material prepared from Fe based powder supported by Höganäs. It was found out that the total losses of the Vitroperm-based soft magnetic composite are more than 10 times lower (at 10 kHz) than that for Fe-based one. |
| DOI: 10.12693/APhysPolA.118.787 PACS numbers: 75.50.Tt, 81.05.Ni, 85.70.-w, 75.60.-d, 75.50.Bb |