Calculations of magnetoactive elastomer reactions in a uniform external magnetic field*
1 Far Eastern Federal University, The
School of Natural Sciences, Department of theoretical and experimental
physics, Sukhanova St.
2 Far Eastern Branch Russian Academy of Science, Institute of Applied Mathematics, Radio str. 7, 690041 Vladivostok, Russian Federation
3 State Scientific Research Institute of Chemistry and Technology of Organoelement Compounds, 105118 Moscow, Russian Federation
Received in final form: 8 October 2013
Published online: 13 January 2014
The model of a magnetoactive elastomer (MAE) based on a system of single-domain fine particles distributed in an elastically deformable matrix is considered. The dependence of a deformation of samples with different concentrations of an ultra-dispersed magnetic material with a given value of a uniformly applied external magnetic field has been calculated and compared with experimental data. It is shown that the presence of inflection points is connected to the intrinsic characteristics of the magnetic filler. Changing the strength of the external magnetic field leads to an alteration of the total energy, and as a consequence promotes the restructuring of the particle distribution, which results in a non-uniform internal magnetic field. The theoretical analysis is found to agree with the experimental data.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2014