The Effect of Magnetic Field on the Rheological Properties of Magnetic Fluids

The concentration dependences of the viscosity of magnetic fluids Fe–glycerol/water, Fe–ethylcellulose/DMAA, FeOx–polyoxypropylene diol/water, FeOx–ethylcellulose/DMAA, Fe7Ni3–ethylcellulose/DMAA, and Fe7Ni3–glycerol/water have been determined in a magnetic field and outside the field. Applying a magnetic field increases the viscosity of magnetic fluids by 2–4 times, and the concentration dependence of the magnetic-field effect on viscosity can be described by a curve with a maximum.