Tribological Properties of Zirconium Oxide, Spinel and Mullite Nanopowders as Lubricating Oil Additives

摘要

In work investigated effects of zirconium oxide (ZrO_2), spinel (MgAl_2O_4) and mullite (Al_6Si_2O_(13)) nanosized powders on the base oil tribological properties. The nanosized (30-40nm) powders manufactured by plasma chemical synthesis method. Tribological experiments used on ball-on-disc type tribometer, measured coefficient of friction and determined metalic disc wear. Base oil used selectively purified industrial mineral oil (conform SAE-20 viscosity) without any functional additives. Nanosized powders mixed in base oil at 0.5;;1.0;;2.0;;wt.%. At work concluded, that the adition nanoparticles in base oil, possible reduced friction pair wear and friction coefficient. As the main results include spinel (MgAl_2O_4) nanoparticles 0.5 and 1.0 wt. % concentration ability reduced friction coeffiecient value.