The Development and Evaluation of New Measuring Methods of the Adhesion Force of Single Particles

Abstract

To make clear the problems in the measurement of the adhesion force of powder, new measuring principles and methods were developed, in which emphasis was laid on extending measuring ranges especially to high temperature condition. As measuring methods for the adhesion force of single particles, vibration and impaction separation methods were developed, and it was found that in separating a particle, the rolling motion by tangential force was very important, for which a fundamental equation was derived. The application of this tangential force to the adhesion measurement was proposed. Some additional measurements were carried out at high temperature to investigate the effect of temperature on the adhesion force of single particles.