Preparation and Rheological Analysis of Mr Fluids

In this paper, the detailed procedure for the preparation and rheological analysis of MR (Magneto-Rheological) fluids is detailed. Three MR fluid samples were prepared using a carrier fluid (silicon oil) which is mixed with Fe particles in addition to additive grease. The grease also serves the purpose of a coating material for the Fe particles. The samples were prepared in-house using an experimental set-up. The sedimentation analysis of fluid samples was done along with off state testing of fluids for its rheological properties. MR fluids are special nature of fluids which are mainly used for vibration control, in which changes in magnetic fields result into drastic changes in yield stress. This change is entirely reversible which is very quick, as it depends entirely on the value of magnetic field.