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Effect of a homogeneous magnetic field on the viscoelastic behavior of magnetic elastomers |
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| Authors: | G.V. Stepanov D.A. Grishin E.Yu. Kramarenko A.R. Khokhlov |
| Affiliation: | a State Scientific Center of the Russian Federation, Institute of Chemistry and Technology of Organoelement Compounds, sh. Entuziastov 128, Moscow 111123, Russia b Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Science, ul. Vavilova 28, Moscow 119991, Russia c Physics Department, Moscow State University, Moscow 119992, Russia |
| Abstract: | Viscoelastic behavior of highly elastic magnetic elastomers has been studied by three different experimental techniques: elongation, static and dynamic shears. It has been shown that the elastic modulus of the materials increases considerably in an external homogeneous magnetic field of up to 0.3 T (100-fold increase of the tangential modulus has been observed at small 1-4% deformations). The appearance of the new effect of pseudo-plasticity induced by the magnetic field has been observed leading to a considerable (up to 100-fold) increase in the shear loss modulus of the composites. |
| Keywords: | Magnetorheological elastomers Mechanical properties Pseudo-plasticity |
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