<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The structural changes in magnetic fluids based on transformer oil TECHNOL and MOGUL upon the effect of an external magnetic field and temperature were studied by acoustic spectroscopy. When a magnetic field is increased, the interaction between the magnetic field and the magnetic moments of the nanoparticles leads to the aggregation of magnetic nanoparticles and following clusters formation. However, the temperature of magnetic fluids has also very important influence on the structural changes because of the mechanism of thermal motion that acts against the cluster creation. The live time of clusters have relative long time scale for the magnetic fluid based on TECHNOL, while for MOGUL is quite short.</p></abstract>

The structural changes in magnetic fluids based on transformer oil TECHNOL and MOGUL upon the effect of an external magnetic field and temperature were studied by acoustic spectroscopy. When a magnetic field is increased, the interaction between the magnetic field and the magnetic moments of the nanoparticles leads to the aggregation of magnetic nanoparticles and following clusters formation. However, the temperature of magnetic fluids has also very important influence on the structural changes because of the mechanism of thermal motion that acts against the cluster creation. The live time of clusters have relative long time scale for the magnetic fluid based on TECHNOL, while for MOGUL is quite short.

Acoustic Properties of Magnetic Fluids Based on Transformer Oil Under Magnetic Field

Department of Physics, Žilinská univerzita v Žiline, Univerzitná 1, 010 26 Žilina

Department of Magnetism, IEP SAS, Watsonova 47, 040 01 Košice

Journal of Electrical Engineering

The structural changes in magnetic fluids based on transformer oil TECHNOL and MOGUL upon the effect of an external magnetic field and temperature were studied...

Acoustic Properties of Magnetic Fluids Based on Transformer Oil Under Magnetic Field

Publié en ligne: 23 nov. 2013

Pages: 381 - 385

DOI: https://doi.org/10.2478/jee-2013-0058

Mots clés
magnetic fluid, transformer oil, acoustic spectroscopy, clusters, magnetic field

This content is open access.

Acoustic Properties of Magnetic Fluids Based on Transformer Oil Under Magnetic Field

Publié en ligne: 23 nov. 2013

Pages: 381 - 385

DOI: https://doi.org/10.2478/jee-2013-0058

Mots clésmagnetic fluid, transformer oil, acoustic spectroscopy, clusters, magnetic field

This content is open access.

Mots clés
magnetic fluid, transformer oil, acoustic spectroscopy, clusters, magnetic field