Vladimir Pejaković (Author), Mitjan Kalin (Author)

Abstract

Ionic liquids are getting increased attention due to their potential use as additives or lubricants. One of parameters that influence their performance is anion alkyl chain length. Three chain lengths in imidazolium sulfate ionic liquids were varied in three different types of tests in order to study the friction performance in all lubrication regimes at different shear rates. Results show significant effect of alkyl chain length on friction behaviour and surface topography. The shortest chain length ionic liquid had the poorest friction performance whilst longer alkyl chain lengths performed significantly better, which was evidenced by the electrical contact resistance. Although friction behaviour was not generally reduced with ionic liquid mixtures, clear tribological improvement was observed in high shear conditions depending on alkyl chain length. Atomic force microscopy (AFM) analysis revealed correlation between ionic liquid chemistry and surface topography of samples after the experiments, with significantly increased roughness for short chain ionic liquid mixture.

Keywords

friction;ionic liquid;alkyl chain length;roughness;topography;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 531.43(045)
COBISS: 13929499 Link will open in a new window
ISSN: 0954-0075
Views: 540
Downloads: 497
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: trenje;ionska tekočina;alkilna dolžine verige;hrapavost;topografija;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2016-12-31
Pages: str. 463-477
Volume: ǂVol. ǂ27
Issue: ǂiss. ǂ8
Chronology: Dec. 2015
DOI: 10.1002/ls.1289
ID: 11061047