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Assessment of sliding friction of a nanostructured solid lubricant film by numerical simulation with the method of movable cellular automata (MCA)

  • Tribofilms formed during dry sliding usually exhibit a nanocrystalline structure and complicated composition. In the present study, tribofilms consisting mainly of a solid lubricant, namely graphite nanoparticles, are considered. Systems providing such tribofilms are candidates for anti-friction applications. Since sliding action always leads to mixing of the materials at both sides of the tribological interface, it was of major interest to study the impact of different amounts of a hard constituent, SiC in the considered case, within the soft matrix systematically. Furthermore, the impact of normal pressure was considered. A mechanically mixed layer was observed for the whole range of normal pressures and SiC volume fractions. The calculated coefficient of friction decreased significantly with increasing thickness of this layer but was only marginally affected by SiC volume fraction, which is good news for anti-friction applications.

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Autoren/innen:Werner ÖsterleORCiD, Andrey Dmitriev, Heinz Kloß
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Titel des übergeordneten Werkes (Englisch):WTC 2013 - 5th World tribology congress
Jahr der Erstveröffentlichung:2013
Herausgeber (Institution):Associazione Italiana di Tribologia
Erste Seite:1
Letzte Seite:4
Freie Schlagwörter:Friction; Nanostructure; Numerical simulation; Third body film
Veranstaltung:WTC 2013 - 5th World tribology congress
Veranstaltungsort:Torino, Italy
Beginndatum der Veranstaltung:08.09.2013
Enddatum der Veranstaltung:13.09.2013
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:02.12.2013