Ki. Schiffmann, MICROFRICTION AND MACROFRICTION OF METAL-CONTAINING AMORPHOUS HYDROCARBON HARD COATINGS DETERMINED BY AFM AND PIN-ON-DISK TESTS, Tribology letter, 5(1), 1998, pp. 109-116
Metal containing amorphous hydrocarbon films (Me-C:H) have excellent t
ribological properties and an adjustable electrical conductivity. Fric
tion force microscopy investigations on gold- and tungsten-C:H films s
how a non-linear dependence of friction on the load in the nanonewton-
range which can be explained by Hertz model of elastic contact. The ef
fective friction coefficient and the interfacial shear stress strongly
depend on the type of metal and the metal concentration inside the fi
lm. Microfriction and macrofriction (pin-on-disk) show a high qualitat
ive correspondence.