What is Magnetorheological Fluid?

Magnetorheological fluid (MR fluid for short) is a controllable fluid and is one of the most active research groups in intelligent materials. Magnetorheological fluid is a suspension made of small soft magnetic particles with high magnetic permeability and low hysteresis and non-magnetic liquid. Under the condition of zero magnetic field, this suspension shows the characteristics of Newtonian fluid with low viscosity; under the action of strong magnetic field, it shows the characteristics of Bingham with high viscosity and low fluidity.