Abstract

Magnetorheological biosuspensions (MRSs) are prepared using honey (HB), turmeric powder (nT) and carbonyl iron (CI) microparticles at various concentrations. By impregnating a cotton fabric with MRSs and compressing the whole system between two copper plates, a magnetoresistor (MRs) is obtained. The resistance R and electrical conductivity σ of MRs are measured as a function of time t for various values of magnetic field intensity H. We show that σ increases with H and is sensibly influenced by the volume fraction ΦCI of carbonyl iron. For fixed ΦCI and H, we show that σ increases with concentration ΦnT of turmeric powder.

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