Abstract
The main aim of this study is to synthesize magneto-rheological fluid in laboratory using silicon oil as carrier oil and it is mixed with variation in concentration of iron particles of size around 4-9 µm, fine lithium grease is used as surfactant. Prepared MR fluid is tested under plate and cone type rheometer for finding is rheological properties like shear stress, shear rate, shear viscosity, storage modulus and loss modulus.
Highlights
The phenomenon can solidify the suspended iron particles and restrict the fluid movement
In this result we can see that the MR sample B has moderate shear stress and moderate shear viscosity when compared to the other two samples, based on the whole shear rate range
It can be seen that the shear stress and shear viscosity increased by magnetic field force
Summary
The phenomenon can solidify the suspended iron particles and restrict the fluid movement. Among all the smart materials magneto rheological fluids are important group. MR fluids are materials with rheological properties are in the proportion to the magnitude of the magnetic field applied and are immediately reversible (Garg and Anderson, 2000). Magneto Rheological fluids belong to the class of yield strength is developed within the fluid. The degree of change is related to the magnitude of the applied magnetic field and can cover in only few milliseconds. A typical MR fluid consists of 20-40% by volume of relatively pure, soft iron particles (carbonyl iron particles) these particles are suspended in synthetic oil, controllable fluids. The essential characteristics of MR mineral oil, water or glycol.
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