Influence of the transverse magnetic field intensity upon the electric resistance of the magnetorheological elastomer containing graphite microparticles

Magnetorheological Elastomers and Their Applications

“…Their results showed that MRE samples exhibit significant changes in measured values of impedance and resistance in response to compressive deformation, as well as applied magnetic field. Bica [32] found that MRE with graphite micro particles (~14%) is electroconductive. The magnetoresistance has an electric resistance whose value diminishes with both the increase of the intensity of the magnetic field and with the compression force.…”

Magnetic field intensity effect on plane electric capacitor characteristics and viscoelasticity of magnetorheological elastomer

“…In contrast, in the case of MR fluids, the magnetizable microparticles are dispersed in liquid media such as silicone oil and mineral oil [9,10], similar to electrorheological fluids under an electric field applied [11,12]. While in the MR elastomers, the magnetizable component lays inside the elastic matrix, such as silicone rubber, natural rubber, polyurethane sealant, acrylonitrile, and polybutadiene [13,14]; unlike the MR fluids, magnetic particles in the MR elastomers do not settle inside the matrix [15,16]. MR elastomers can be produced either in the absence or in the presence of the magnetic field.…”

Experimental Investigation of an Adaptively Tuned Dynamic Absorber Incorporating Magnetorheological Elastomer with Self-Sensing Property

“…They have found that the electrical resistance of the samples changes depended on both the magnitude of the mechanical loading and the strength of the magnetic field. In several other studies, it has been shown that a wider electrical resistance change of the composite can be obtained, and the sensitivity to the applied external force can be improved by the addition of graphite particles [21][22][23]. The change of the material conductivity for both the applied loading and the magnetic field could be explained by the change in the distance between particles.…”

“…In addition to the field-dependent stiffness change property of the MRE, the electrical resistance of the material is also changed according to the induced strain within the elastomer [20][21][22][23]. Such a conductive property can be realized by the higher iron powder incorporation within the elastomeric matrix as well as the proper arrangement of the electrically conductive particles into the deforming direction of the host elastomer.…”