Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 3994-3999, November, 2014
Hybrid magnetorheological elastomer: Influence of magnetic field and compression pressure on its electrical conductivity
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Graphene nanoparticles are used to produce a hybrid electro-conductive magnetorheological elastomer (MRE-hybrid). We fabricate a magnetoresistive sensor based on the obtained MRE-hybrid. We measure the electrical resistance of the MRE-hybrid in a transverse magnetic field of intensity 0 ≤ H (kA/m) ≤ 65, and separately, the electrical resistance under the influence of a compression pressure p ≤ 14.4 kPa. From the obtained results we determine the variation of electrical conductivity with H, and respectively with p.We develop a theoretical model which explains the effects of H and p on electrical conductivity of MRE-hybrid. The obtained results are presented and discussed.
Keywords:Hybrid electro-conductive;magnetorheological elastomer;Magnetoresistive sensor;Graphene nanoparticles;Carbonyl iron;Silicone rubber;Electrical conductivity
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