Frictional properties of perfluoropolyether monolayers investigated with quartz resonators

Autor:	Larry E. Bailey, Diethelm Johannsmann, Curtis W. Frank, George W. Tyndall, Alexander Laschitsch
Rok vydání:	2001
Předmět:	chemistry.chemical_classification Materials science Physics and Astronomy (miscellaneous) Polymer Dissipation Resonator chemistry visual_art Monolayer visual_art.visual_art_medium Lubrication Ceramic Lubricant Composite material Quartz
Zdroj:	Applied Physics Letters. 78:2601-2603
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1360781
Popis:	The high-frequency frictional properties of thin lubricating layers of perfluoropolyethers coated onto the surface of quartz-crystal resonators were probed by measuring the increase in resonance bandwidth when the quartz surface comes into contact with a ceramic sphere. For a lubricant thickness of up to 11 A, a maximum in bandwidth is observed. The width and the height of the maximum decrease with increasing lubricant thickness. This is attributed to dissipation occurring during intermittent contact between the substrate and the sphere. With a 25 A lubricant film the sphere discontinuously jumps into contact, after which the movements of the sphere and the quartz are locked.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b68aaaf4b362a7f96800ff9cc730f966 https://doi.org/10.1063/1.1360781 Zobrazit plný text záznamu