Indian Journal of Science and Technology

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This paper focuses on the synthesis and characterization of ferro fluid (smart fluid). The colloidal mixtures of magnetite in carrier fluid were made by different chemical processes. The characteristics like particle size, turbidity, density, viscosity, and damping were studied. The average particle size after repeated filtering measured to 12 nm. The turbidity variation was found to be almost negligible. The damping coefficient varied from 0.2418 Ns/m to 0.8348Ns/m in the magnetic field. The effect of magnetic field on viscosity was studied on in house made viscometer and calibrated with the existing Redwood viscometer. It was possible to change the viscosity with the change in magnetic field. Such smart fluid could be used in a semi active shock absorber of a vehicle for better performance.

Keywords

Ferro Fluid, Viscosity, Magnetic Field, Smart Fluid
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