Abstract
The effects of Cu nano-particles additive (Nano-Cu) and tricresyl phosphate (T306) and their synergetic effects on the tribological performance of lube oil were investigated by using four-ball test machine. The interaction of the two additives was also studied through SEM and XPS analysis. The results showed that the two additives with a certain range of concentration could improve tribological properties of base oil. The synergetic effect of the extreme pressure and antiwear was found in the lube oil containing nano-Cu and T306. When the mass fractions of the two additives in lube oil were 0.5% respectively, the extreme pressure and antiwear properties of the complex system were best. The composite film made by the aggradation film of Cu and the tribochemical reaction film containing FeS, SO42- and PO43- was found on the rubbing surface, which was the reason of synergetic effect.
Original language | English |
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Pages (from-to) | 85-90 |
Number of pages | 6 |
Journal | Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) |
Volume | 21 |
Issue number | 5 |
State | Published - Oct 2005 |
Externally published | Yes |
Keywords
- Nano-Cu
- Synergetic effect
- Tribological properties
- Tricresyl phosphate (T306)