The chemical nature of metal-polytetrafluoroethylene tribological interactions as studied by X-ray photoelectron spectroscopy
References (26)
Chemical aspects of wear processes in polymers — a review
Wear
(1971)- et al.
Wear
(1976) Anal. Chem.
(1970)- et al.
Wear
(1974) - et al.
Appl. Spectrosc.
(1974) - P. Cadman and G. M. Gossedge, unpublished...
- et al.
Friction and Lubrication of Solids
(1950)et al.Friction and Lubrication of Solids
(1964) Plain and filled plastics materials in bearings: a review
Nature (London)
Wear
Cited by (70)
Tribological properties of PAO40@SiO<inf>2</inf>/PTFE/aramid fabric composites subjected to heavy-loading conditions
2022, Tribology InternationalCitation Excerpt :The content of F-C bond in the transfer film associated with the shaft contacting with Fabric-0% appeared to be significantly higher than that of Fabric-6% SiO2 and Fabric-6% PSMS. More importantly, metal-F (685 eV) bonds [33–36] were observed for the transfer films in relation to Fabric-6% SiO2 and Fabric-6% PSMS, but were almost invisible when rubbing with Fabric-0%. This phenomenon inferred that the silica particles could promote the tribo-chemical reaction between PTFE and the shaft surface to form the metal-F bonds.
Easy plasma nano-texturing of PTFE surface: From pyramid to unusual spherules-on-pyramid features
2019, Applied Surface ScienceCitation Excerpt :Hence, though PTFE likely loses fluorine, the impinging metal atoms capture F in fluoride form and as a matter of fact the total F/C atomic ratio stays fairly constant. The formation of metal fluoride, in particular FeF2, is confirmed by the position of the maximum of the Fe 2p3/2 peak, 712 eV, compatible with the presence of such species (see Fig. 7) [22,24,25]. It should be here highlighted that, looking at the shape of the Fe2p region, iron is likely present in various oxidation states, even metal, at 706 eV.
Ultralow wear Perfluoroalkoxy (PFA) and alumina composites
2016, WearCitation Excerpt :PTFE has been shown to transfer to a metal countersample after only a single sliding cycle [51,52]. During these transfer events, carbon–carbon bonds are broken, presenting an opportunity for tribochemistry [5,6,8,11,17,46,47,51–60]. Recently, the mechanism behind this remarkable material has been investigated using various research tools including XPS, FTIR, AFM, nano-indentation, 3D X-ray microtomography, and environmental/vacuum testing [8–12,17].
Formation of metal-F bonds during frictional sliding: Influence of water and applied load
2016, Applied Surface ScienceCitation Excerpt :Two evident F peaks at around 689.0 eV and around 685.3 eV are seen on the worn Al2O3 surface under dry sliding, whilst hardly any peak is observed on the worn Al2O3 surface sliding in water-lubricated conditions. The 685.3 eV peak points at the existence of metalF bonds, while the peak at 689.0 eV is assigned to CF bonds in PTFE [3,19,20]. The detected 689.0 eV peak suggests the existence of PTFE transfer films on Al2O3 ball surface, while the detected 685.3 eV peak indicates the formation of AlF bonds on Al2O3 ball surface.