Characteristics of magnetic compound fluid (MCF) in a rotating rheometer

As a new intelligent or smart fluid, we propose a magnetic compound fluid (MCF). This fluid has nm size magnetite and μm size iron particles in a solvent. The magnetic field effect on flow characteristics of MCF can demonstrate midpoint between magnetic fluid (MF) and magneto-rheological fluid (MRF). For example, the magnitude of shear stress to shear rate under a steady magnetic field in MCF can be larger than MRF by varying the compound rate of the magnetite and iron particles. This report shows an experimental data of shear stress to shear rate of MCF in rotating rheometers of cone and concentric cylinder types under transverse and longitudinal magnetic fields.