Effect of a homogeneous magnetic field on the viscoelastic behavior of magnetic elastomers

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...

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Bibliographic Details
Published in:Polymer (Guilford) 2007-01, Vol.48 (2), p.488-495
Main Authors: Stepanov, G.V., Abramchuk, S.S., Grishin, D.A., Nikitin, L.V., Kramarenko, E.Yu, Khokhlov, A.R.
Format: Article
Language:English
Subjects:
Magnetorheological elastomers
Mechanical properties
Pseudo-plasticity
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Summary: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.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2006.11.044