Dielectric Properties of Magnetic Liquids in High Electric Fields

• Authors: F. Herchl , P. Kopčanský , M. Timko , M. Koneracká , K. Marton , I. Kolcunová , L. Tomčo
• Languages of publication: EN

Abstracts

EN

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 concentrationΦ= 0.0019 was observed. The magnetic fluid with the concentrationΦ= 0.019 showed the significant changes of permittivity and dielectric losses, too.

Keywords

EN

75.50.Mm; 77.22.-d

Discipline

• 77.22.-d: Dielectric properties of solids and liquids(for dielectric properties of tissues and organs, see 87.19.rf)
• 75.50.Mm: Magnetic liquids

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 569-572

Dates

published

2008-01

received

2007-07-09

Contributors

author

F. Herchl

• Institute of Experimental Physics, SAS, Watsonova 47, 043 53 Košice, Slovakia

author

P. Kopčanský

• Institute of Experimental Physics, SAS, Watsonova 47, 043 53 Košice, Slovakia

author

M. Timko

• Institute of Experimental Physics, SAS, Watsonova 47, 043 53 Košice, Slovakia

author

M. Koneracká

• Institute of Experimental Physics, SAS, Watsonova 47, 043 53 Košice, Slovakia

author

K. Marton

• Faculty of Electrical Engineering and Informatics, Technical University, Letná 9, 042 00 Košice, Slovakia

author

I. Kolcunová

• Faculty of Electrical Engineering and Informatics, Technical University, Letná 9, 042 00 Košice, Slovakia

author

L. Tomčo

• Faculty of Aeronautics, Technical University, Rampová7, 041 21 Košice, Slovakia

References

• 1. V. Segal, K. Raj, Indian J. Eng. Mater Sci. 5, 416 (1998)
• 2. P. Kopčanský, L. Tomčo, K. Marton, M. Koneracká, M. Timko, I. Potočová, J. Magn. Magn. Mater. 289, 415 (2005)
• 3. C. Cotae, J. Magn. Magn. Mater. 39, 85 (1983)
• 4. R.W. Chantrell, J. Popplewell, S.W. Charles, IEEE Trans. Magn. 14, 975 (1978)
• 5. M.M. Rädulescu, J. Magn. Magn. Mater. 85, 144 (1990)

Identifiers

DOI

10.12693/APhysPolA.113.569