Power measurements during mechanical milling. An experimental way to investigate the energy transfer phenomena

Abstract

Energy transfer and power consumption during milling have been theoretically evaluated through an already assessed model. Electrical and mechanical power consumptions during milling have been measured. The experimental results are perfectly in line with the prediction of the collision model and comparison between experimental and theoretical power absorptions is quite satisfactory. The dependence of the power consumption on the rotation speed of the planetary mill and the effect of the filling of the milling device on the energy transfer and power consumption have clearly been established. Practical consequences on the choice of the proper milling conditions have been illustrated by examining different kinds of reactions promoted under different milling conditions.