Magnetic field stimulated dielectric, electronic and thermal properties of magnetite nano-hollow spheres based magnetorheological fluids
Source abstract
Abstract
We present a combination of dielectric and thermal conduction properties of magnetorheological (MR) fluids with Fe 3O 4 nano-hollow spheres (NHSs). The formation of microstructures in presence of a magnetic field by the suspended NHSs in the base fluids determines the dielectric relaxation and electrical conduction process, depending on the viscosity of the base fluids. We observe a prominent magneto-dielectric effect and an excellent improvement in the electrical conductivity due to chain formation in presence of a magnetic field in the MR fluids. Our thermal conduction experiments establish that not only the heat flow can be improved with the addition of magnetite NHSs in the base fluids, but the direction of heat flow can also be controlled with the orientation of the external magnetic field.
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Research context
OpenAlex topics: Vibration Control and Rheological Fluids · Nanofluid Flow and Heat Transfer · Characterization and Applications of Magnetic Nanoparticles
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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