Tribological behavior of nano TiO2 as an additive in base oil

Performance Evaluation and Lubrication Mechanism of Water-Based Nanolubricants Containing Nano-TiO2 in Hot Steel Rolling

“…This result has been proved in our previous study by using a pin-on-disk tribological test [21]. The other reason for reducing surface roughness may be ascribed to the "polishing effect" of TiO 2 NPs [29], which helps to remove the bumps or peaks embedded in steel substrate, and thus flatten the surface of rolled steel.…”

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

“…Battez et al reported that spherical CuO, ZrO 2 and ZnO nanoparticles as additives in PAO 6 reduced friction and wear due to the third body and tribo-sinterization mechanisms of nanoparticles as proved by EDS and XPS analyses [254]. Ingole et al and Wu et al demonstrated that all the spherical CuO, TiO 2 and diamond nanoparicles used as additives in lubricating oils exhibited good friction reduction and anti-wear behavior, especially for CuO [206,255]. The friction reduction might be attributed to the viscosity effect at low temperature and the rolling effect at high temperature, and the anti-wear mechanism was attributed to the deposition of CuO nanoparticles on the worn surface, which may decrease the shearing stress, thus improving the tribological properties.…”

Tribological Properties of the Lubricant Containing Titanium Dioxide Nanoparticles as an Additive

“…The binding energy of iron (Fe2p) locates at 707.1 and 711.2 eV, respectively, corresponded to Fe 3+ (oxide), i.e. to Fe2O3 [30,32,[40][41][42]44]. Fe2p spectra showed a presence of Fe 2+ and Fe 3+ .…”

“…The new technology is no longer restricted to the surface modification process, but solves the difficult problem through the combination effect of surface modification and an oil-blending process. The new method was first used to prepare a lubricant containing TiO 2 nanoparticles, and it should be helpful for the TiO 2 nanoparticles used as additives in engine oil, gear oil, and other industrial lubricants [39][40][41]. At the same time, tribological properties of TiO 2 nanoparticles in base oil as a lubricating additive were also studied.…”