CHARACTERISTICS AND APPLICATIONS OF AMORPHOUS COMPOUND FLUID

Abstract

We proposed an amorphous compound fluid (ACF) as a new intelligent or smart fluid. This fluid contains nm-size magnetite and 1μm-sized amorphous particles in a solvent. This report shows, first, experimental data regarding the viscosity of ACF in a cone-type rotating rheometer under a transverse magnetic field and its magnetization under a DC magnetic field. The experimental results are then compared with those for previous magnetic responsive fluids, magnetic compound fluid (MCF), magneto-rheological fluid (MRF), and magnetic fluid (MF). Those magnetic clusters as aggregated particles were investigated by optical observation. Finally, this report shows the experimental results of engineering applications on polishing that utilize the ACF, and compares the results with polishing that utilizes MCF.