Nanometer crystal titanium oxide with a particle size of about 20 nm was prepared using ethanol supercritical fluid drying technique. Tribology properties of 500 SN oil with the nanometer particles were measured using four-ball and block-on-ring tribotester. Results indicated that wear resistance and load carrying capacity of 500 SN base oil were improved and friction coefficient was decreased by an addition of the nanometer particles. There was an optimal content of titanium oxide in the oil, which gave the highest maximum nonseized load. Nanometer titanium oxide took effect by its deposition on rubbing surface.
Wear – Elsevier
Published: Mar 15, 1998
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