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The impact of electromagnetic radiation on the degradation of magnetic ferrofluids

Pavlík M., Kruželák L., Mikita M., Špes M., Bucko S., Lisoň L., Kosterec M., Beňa L., Liptai P.

Archives of Electrical Engineering

2017

Vol. 66, nr 2

361--369

This article deals with magnetic nano-fluids, which are the part of transformer oil ITO 100 and their behavior is influenced by a permanent magnetic field. We performed an IRC analysis in the time domain on the three different samples. Measurements were made before and after radiation of an electromagnetic field. The main objective was to examine changes in the properties of the samples due to the influence of the electromagnetic field. The measurements depend on the orientation of the external magnetic field. This behavior occurs especially during the structuring of the nanoparticles in the sample exposed to the magnetic field. These processes change the polarization of the liquid because the nanoparticles concentration is contained in the fluid.