Two phosphonium cation-based ionic liquids used as lubricant additive. Part II: Tribofilm analysis and friction torque loss in cylindrical roller thrust bearings at constant temperature

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Hernandez Battez, AH (Author) Other; Carlos M C G Fernandes (Author) FEUP; Martins, RC (Author) Other; Graca, BM (Author) Other; Anand, M (Author) Other; Blanco, D (Author) Other; Jorge Seabra (Author) FEUP

Journal

Title: Tribology International

Vol. 109

Pages: 496-504

ISSN: 0301-679X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 18 Citations

Other information

Authenticus ID: P-00M-D9P

DOI: 10.1016/j.triboint.2017.01.020

Abstract (EN): Two phosphonium cation-based ionic liquids (ILs): [P-66614][(iC8)(2)PO2] (IL1) and [P66614] [BEHP] (IL2) were used as an additive to a mineral oil at 0.5 and 1.0 wt%. All IL-containing mixtures and the base oil were tested using a cylindrical roller thrust bearings test configuration. Friction and torque tests were performed and different analytical techniques were used for wear evaluation. The results showed that: IL-containing mixtures decreased friction in comparison with the neat base oil; IL2 performed better than IL1 as antifriction and antiwear additive; and chemical reaction of the ILs with the surface was found related to the tribological behaviour.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9