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Influence of electric potentials on friction of sliding contacts lubricated by an ionic liquid

: Dold, C.; Amann, T.; Kailer, A.

Fulltext urn:nbn:de:0011-n-3435935 (572 KByte PDF)
MD5 Fingerprint: 19b253fabe1de2880db61b5d93b68a6f
Created on: 3.5.2016

Physical chemistry, chemical physics : PCCP 17 (2015), No.16, pp.10339-10342
ISSN: 1463-9076
Deutsche Forschungsgemeinschaft DFG
SPP 1191; Ionic Liquids
Journal Article, Electronic Publication
Fraunhofer IWM ()
ionic liuquids; electrotribology; electrorheology; polarisation; orientation

Tribological investigations on the macroscopic scale revealed that friction can be influenced in situ by applying electric potentials, if electrically conductive fluid such as an ionic liquid is used as a lubricant. Enrichment of charged ions at a steel interface occurs by applying electric surface potentials in a three-electrode setup. As a consequence, the lubrication conditions change. It is supposed that electrically influenced surface adsorption and electrokinetic effects are the main mechanisms by which friction is varied.