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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Skumiel, Andrzej
Adam Mickiewicz University in Poznań
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2016The influence of oxidation process on exchange bias in egg-shaped FeO/Fe<inf>3</inf>O<inf>4</inf> core/shell nanoparticlescitations
- 2013Investigation of ultrasonic emulsifying processes of a linseed oil and water mixturecitations
- 2012Thermophysical and magnetic properties of carbon beads containing cobalt nanocrystallitescitations
- 2011Thermophysical and magnetic properties of carbon beads containing nickel nanocrystallitescitations
- 2011Structuring from nanoparticles in oil-based ferrofluidscitations
- 2011Magnetically induced anisotropy of electric permittivity in the PDMS ferromagnetic gelcitations
- 2010Effect of poly(Ethylene Glycol) coating on the acoustic properties of biocompatible magnetic fluidcitations
- 2009Magnetic properties and heating effect in bacterial magnetic nanoparticlescitations
- 2008The effect of temperature on the electric conductivity of poly(dimethyl siloxane) ferromagnetic gelcitations
Places of action
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article
The effect of temperature on the electric conductivity of poly(dimethyl siloxane) ferromagnetic gel
Abstract
<p>In this paper the influence of temperature on the electrical conductivity of a ferromagnetic gel is investigated. The material used was poly(dimethyl siloxane) (PDMS) gel which contained randomly distributed magnetite nanosized particles. The electrical conductivity was measured by means of the two-point dc method. During the heating of the PDMS in the temperature range of 295-460K the electrical conductivity increased from about 2 × 10<sup>-12</sup> to 2 × 10<sup>-8</sup>Sm<sup>-1</sup>. Astudy of the current-temperature dependence obtained during subsequent heating runs revealed two subranges of temperature characterized by different activation energies. The presence of these subranges could be explained either by the liberation of two different types of charge carrier or by the increase in the degree of polymer cross-linking. In the upper temperature subrange (420-460K) both types of charge carrier probably contribute to the electrical conductivity of PDMS ferromagnetic gel. © 2008 IOP Publishing Ltd.</p>