Analysis of selected properties of DLC films

This paper is oriented to the study of advanced materials on the base of - DLC (diamond like carbon) coatings - namely a: C (amorphous carbon films). The type and thickness of deposited coatings by PVD method can influence their quality and adhesion to the substrate. PVD process parameters are strongly affecting the coatings and substrate interface as well as the adhesion and tribological properties. Experimental samples were made of commercial CrMoCo alloy-substrate system used for artificial joints. Amorphous carbon layers were deposited by equipment UVNIPA-1-001. The wear resistance of the coatings was evaluated by microtribotest and DSI curves measured by the NanoTest NT 600 apparatus at different maximal loads from 5, 10, 20, 50, and 100 mN with diamond Berkovich tip using the analysis developed.