Predicting cathode material evaporation by the electric arc in PVD processes Nikolay Petkov, Hristo Bahchedzhiev and Tetiana Cholakova Eur. Phys. J. Appl. Phys., 70 3 (2015) 30801 Published online: 24 June 2015 DOI: 10.1051/epjap/2015150043