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 (December), 422 - 430.
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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 |
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ISSN: | 0301-679X |
Uncontrolled Keywords: | Ionic liquid; polar oil; additive; lubrication |
Group: | Faculty of Science & Technology |
ID Code: | 29877 |
Deposited By: | Symplectic RT2 |
Deposited On: | 17 Oct 2017 14:35 |
Last Modified: | 14 Mar 2022 14:07 |
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