Measurement of particle adhesion force and effective contact radius via centrifuge equipped with horizontal and vertical substrates

A centrifugal method was used to analyze and evaluate particle–surface interactions. Particles with count median diameters of 9.7, 14.5, 32.8 μm were removed from horizontally vertically mounted metal substrates. point-mass model is conventionally the forces exerted on particles during centrifugation. Conversely, in this study, a rigid-body employed considering particle diameter effective contact radius between substrate. As moments force horizontal vertical substrates simultaneously formulated, adhesion could be determined based angular velocities obtained at given removal fraction. It quantitatively demonstrated that as diameter, relative humidity, and/or initial load increase surface roughness decreases, increases. Furthermore, increased increased.