INVESTIGATIONS ON CHARACTERIZATION OF HONGE OIL BASED MAGNETORHEOLOGICAL FLUIDS
Keywords:
Magnetorheological Fluids, Biodegradable Carriers, Honge Oil, Flow CharacteristicsAbstract
Magnetorheological (MR) fluids belong to the class of smart materials which mainly consist of carrier liquid and suspensions. Flow characteristics of these fluids are an important aspect to determine their suitability for various applications. Mineral oils, silicon oil, synthetic oils etc. are commonly used carrier liquids. Some of these liquids are neither-biodegradable, nor environmental friendly and of high cost. In this work, four different bio-degradable vegetable oils are considered for their suitability as carrier liquid. After evaluating basic properties relevant for MR fluids for all oils, one among that was selected as carrier liquid and then stability analysis at higher temperature was carried out. In the second phase of experimentation, two combinations of MR fluids have been prepared indigenously from the selected carrier liquid for examining flow characteristics of the MR fluid using a capillary viscometer experimental setup. It was observed that, at low magnetic field, the flow rate was not changed, but as it
increased the flow rate gradually decreased and finally completely stopped with further increase in magnetic field. At this condition the theoretical yield stress are also determined.
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