Tribological properties of mineral oils modified with metallic nano-particles

Abstract

The suspensions of metallic nano-particles stabilised with different surfactants can considerably reduce the wear of friction surfaces. Fe and Fe+Cu nano-particles can reduce the wear up to 30-45 % even taking into account the wear resistance properties of surfactants itself. Oils suspensions with nano-particles stabilise the friction torque comparing to friction of pure surfactants' suspensions, in most cases significantly reduce the friction coefficient (up to 40 %) and contribute to reducing trend of friction coefficient. Tribological efficiency of oil modified with surfactant lanolin FVE VO2 and Fe+Cu nano-particles show clear correlation of friction measurements with wear tests. Optical investigations show that it could be partially explained by forming of different wear resistant films on friction surfaceVytauto Didžiojo universitetasŽemės ūkio akademij