The Dielectric Breakdown of Magnetic Fluids

  • Jozef Kudelcik
  • Peter Bury
  • Vlasta Zavisova
  • Milan Timko
  • Peter Kopcansky
Keywords: transformer oil, magnetic fluid, relative permittivity, breakdown voltage

Abstract

The development of dielectric breakdown and the DC dielectric breakdown voltage of magnetic fluids based on inhibited transformer oil ITO 100 were investigated in parallel orientations of external magnetic field. It was shown that the breakdown voltage is strongly influenced by the magnetic nanoparticles. The magnetic fluids with the volume concentration of 1% had better dielectric properties than pure transformer oil. The increase of breakdown voltage was interpreted on the base of the bubble theory of breakdown.

Author Biographies

Jozef Kudelcik

Department of Physics, Faculty of Electrical Engineering, University of Zilina, Slovakia

Peter Bury

Department of Physics, Faculty of Electrical Engineering, University of Zilina, Slovakia

Vlasta Zavisova

Department of Magnetism, Institute of Experimental Physics SAS, Kosice, Slovakia

Milan Timko

Department of Magnetism, Institute of Experimental Physics SAS, Kosice, Slovakia

Peter Kopcansky

Department of Magnetism, Institute of Experimental Physics SAS, Kosice, Slovakia

Published
2010-06-30
How to Cite
Kudelcik, J., Bury, P., Zavisova, V., Timko, M., & Kopcansky, P. (2010). The Dielectric Breakdown of Magnetic Fluids. Communications - Scientific Letters of the University of Zilina, 12(2), 34-37. Retrieved from http://journals.uniza.sk/index.php/communications/article/view/911
Issue
Vol 12 No 2 (2010)
Section
Articles