Dielectric Properties of Magnetic Liquids in High Electric Fields |
| F. Herchl, P. Kopčanský, M. Timko, M. Koneracká
Institute of Experimental Physics, SAS, Watsonova 47, 043 53 Košice, Slovakia K. Marton, I. Kolcunová Faculty of Electrical Engineering and Informatics, Technical University, Letná9, 042 00 Košice, Slovakia L. Tomčo Faculty of Aeronautics, Technical University, Rampová7, 041 21 Košice, Slovakia |
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| Received: 9 07 2007; |
| In this work, dielectric properties of magnetic fluids composed of magnetite particles dispersed in transformer oil and subjected to a uniform magnetic field were investigated at the high alternating electric field intensities in the range of 0.5-2.5 MV/m. Dielectric stability of the magnetic fluid with the particle volume concentration Φ= 0.0019 was observed. The magnetic fluid with the concentration Φ= 0.019 showed the significant changes of permittivity and dielectric losses, too. |
| DOI: 10.12693/APhysPolA.113.569 PACS numbers: 75.50.Mm, 77.22.-d |