Abstract
The present work investigates zinc oxide nanorods' tribological behavior as an additive in the SAE (20W-40) engine oil. The zinc oxide nanorods were synthesized using the chemical method and characterized using XRD and SEM. The friction and wear characteristics were studied for the samples with varying zinc oxide concentrations (0.01%–0.05%) using a Four-ball tribotester. The results reveal a reduction of up to 88% (87.4559%) and 47% (46.0532%) in the wear scar area (WSA) and wear scar diameter (WSD) for the samples with 0.02% zinc oxide nanorods in comparison with the base oil without the additive.
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