Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4985942 | Tribology International | 2017 | 9 Pages |
Abstract
This paper studies the tribological behavior of the ionic liquid methyltrioctylammonium bis(trifluoromethylsulfonyl)imide ([N1888][NTf2]) as additive at different concentrations (1.25, 2.50, 3.75 and 5.00Â wt%) in a polar base oil (diester). A tribometer using a ball-on-disk reciprocating configuration under fully flooded lubrication was used at a frequency of 15Â Hz, at three different loads (40, 80 and 120Â N), stroke length of 4Â mm, and duration of 45Â min. Worn surface on the disk was studied by confocal microscopy, SEM and XPS. Main results showed similar coefficient of friction for all lubricant samples; but different wear results were found at different loads, probably related with the chemical states found for fluorine on the worn surface and the temperature-dependent adsorption-desorption processes.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
J.L. Viesca, M.T. Mallada, D. Blanco, A. Fernández-González, J. Espina-Casado, R. González, A. Hernández Battez,