Analysis of Magnetic Losses and Complex Permeability in Novel Soft Magnetic Composite With Ferrite Nanofibers
| Autor: | P. Kurek, Radovan Bureš, Magdaléna Strečková, Yevhenii Osadchuk, Ján Füzer, Mária Fáberová, Peter Kollár, L'. Dakova, M. Vojtko, Samuel Dobák |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Magnetic composite 02 engineering and technology 021001 nanoscience & nanotechnology Magnetic hysteresis 01 natural sciences Electronic Optical and Magnetic Materials law.invention Electrical resistivity and conductivity Permeability (electromagnetism) law Nanofiber 0103 physical sciences Eddy current Ferrite (magnet) Electrical and Electronic Engineering Composite material 0210 nano-technology |
| Zdroj: | IEEE Transactions on Magnetics. 54:1-6 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | This paper investigated the magnetic properties of novel soft magnetic composite (SMC) with ferrite nanofibers. Material consists of FeSi powder covered by resin and different amounts of Ni0.3Zn0.7Fe2O4 ferrite nanofibers. We prepared SMC with very high specific electrical resistivity. FeSi/resin (0.49 wt% ferrite) sample exhibits the highest electrical resistivity ( $6.05~\Omega \cdot \text{m}$ ) due to low interparticle contacts. The image analysis of SEM pictures was used for the evaluation of effective area, in which local eddy currents are flowing. The FeSi/resin (0.49 wt% ferrite) sample displays the lowest total losses in the measured frequency range due to the highest specific electrical resistivity and appropriately covered FeSi particles. Loss separation and the analysis of movable magnetic objects were performed for all studied materials. |
| Databáze: | OpenAIRE |
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