A near-wearless and extremely long lifetime amorphous carbon film under high vacuum
2015 (English)In: Scientific Reports, ISSN 2045-2322, Vol. 5, 11119Article in journal (Refereed) Published
Prolonging wear life of amorphous carbon films under vacuum was an enormous challenge. In this work, we firstly reported that amorphous carbon film as a lubricant layer containing hydrogen, oxygen, fluorine and silicon (a-C:H:O:F:Si) exhibited low friction (similar to 0.1), ultra-low wear rate (9.0 x 10(-13) mm(3) N-1 mm(-1)) and ultra-long wear life (>2 x 10(6) cycles) under high vacuum. We systematically examined microstructure and composition of transfer film for understanding of the underlying frictional mechanism, which suggested that the extraordinarily excellent tribological properties were attributed to the thermodynamically and structurally stable FeF2 nanocrystallites corroborated using first-principles calculations, which were induced by the tribochemical reaction.
Place, publisher, year, edition, pages
2015. Vol. 5, 11119
IdentifiersURN: urn:nbn:se:uu:diva-257646DOI: 10.1038/srep11119ISI: 000356084800001PubMedID: 26059254OAI: oai:DiVA.org:uu-257646DiVA: diva2:840657