کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
619765 | 881860 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Tribological performance of phosphonium based ionic liquids for an aluminum-on-steel system and opinions on lubrication mechanism Tribological performance of phosphonium based ionic liquids for an aluminum-on-steel system and opinions on lubrication mechanism](/preview/png/619765.png)
A series of asymmetrical tetraalkylphosphonium ionic liquids were synthesized and evaluated as a new kind of lubricant for the contacts of steel/Al using an Optimol SRV oscillating friction and wear tester in ambient condition. The phosphonium ionic liquid shows excellent tribological performance and is superior to the conventional ionic liquids 1-ethy-3-hexylimidazolium hexafluorophosphate (P206) in terms of anti-wear performance and load-carrying capacity. The chemical compositions of the boundary film generated on different contact surfaces were analyzed on a scanning electron microscope with a Kevex energy dispersive X-ray analyzer attachment (SEM/EDS) and X-ray photoelectron spectrometer (XPS). The friction-reduction and anti-wear mechanism were proposed to originate from the layered structure of ionic liquid under boundary lubrication and the tribochemical reaction of anions with the fresh surface, respectively.
Journal: Wear - Volume 261, Issue 10, 30 November 2006, Pages 1174–1179