Lubrication performance of an ammonium cation-based ionic liquid used as an additive in a polar oil.

Viesca Rodriguez, J.L., Mallada, M.T., Blanco, D., Fernandez-Gonzalez, A., Espina-Casado, J., Gonzalez, R. and Hernandez Battez, A., 2017. Lubrication performance of an ammonium cation-based ionic liquid used as an additive in a polar oil. Tribology International, 116, 422 - 430. (In Press)

Full text available as:

[img] PDF
Manuscript - TRIBOLOGY INTERNATIONAL-17.pdf - Accepted Version
Restricted to Repository staff only until 5 August 2018.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

821kB

DOI: 10.1016/j.triboint.2017.08.004

Abstract

This paper studies the tribological behavior of the ionic liquid methyltrioctylammonium bis(trifluoromethylsulfonyl)imide ([N 1888 ][NTf 2 ]) as additive at different concentrations (1.25, 2.50, 3.75 and 5.00 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 15 Hz, at three different loads (40, 80 and 120 N), stroke length of 4 mm, and duration of 45 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.

Item Type:Article
ISSN:0301-679X
Uncontrolled Keywords:Ionic liquid; polar oil; additive; lubrication
Group:Faculty of Science & Technology
ID Code:29877
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:17 Oct 2017 14:35
Last Modified:17 Oct 2017 14:49

Downloads

Downloads per month over past year

More statistics for this item...
Repository Staff Only -