Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers.
作者： Ioan Bica , Eugen Mircea Anitas , Liviu Chirigiu
DOI: 10.3390/NANO10102060
关键词:
摘要: We present a simple, low-cost, and environmental-friendly method for the fabrication of hybrid magnetorheological composites (hMCs) based on cotton fibers soaked with mixture silicone oil (SO), carbonyl iron (CI) microparticles, oxide microfibers (μF). The obtained hMCs, various ratios (Φ) SO μF, are used as dielectric materials manufacturing electrical devices. equivalent capacitance resistance investigated in presence an external magnetic field, flux density B. Based recorded data, we obtain variation relative constant (ϵr′), conductivity (σ), Φ, show that, by increasing distance between CI dipoles increases, this leads to significant changes behaviour ϵr′ σ field. results explained developing theoretical model that is dipolar approximation. They indicate hMCs can be magneto-active electric/magnetic field sensors transducers.
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