AN INVESTIGATION OF TRIBOLOGICAL BEHAVIOUR OF LUBRICATING OIL WITH THE ADDITION OF NANOPARTICLE ADDITIVES

In this paper the tribological behaviour of silicon oxides (20nm) Nanoparticles and Nickel carbon coted (20nm) nanoparticles additives on 10W30 engine lubricating oil for improve the tribological properties of lubricants is presented. These nanoparticle were add to lubricating oil and which are made of different concentrations (0.5, 1, and 2 wt. %). The tribological behaviour was evaluated on a four ball oil testing machine according to ASTM D4172 B and also viscosity measured on Redwood visc ometer. Result show that the each set of Nanoparticle significantly reduces the friction coefficient and wear of friction pairs and wear surfaces were analyses by scanning electron microscope (SEM).