ABSTRACT
Tribological properties of biodiesel carbon soot particles (BCSPs) as soybean oil additives were examined utilizing a ball-on-disk reciprocating tribometer. The findings revealed that by adding BCSPs to soybean oil, the lubrication performance can be significantly enhanced. The 0.025 wt% BCSPs simultaneously reduce the friction and wear by 29.0% and 25.4%, respectively, at 10 N for 30 min. The formation of carbon tribofilm containing BCSPs and the rolling bearing effect dominates the lubrication mechanism of soybean oil with BCSPs.
