Journal ArticleDOI
Friction and wear of PTFE composites at cryogenic temperatures
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TLDR
In this article, the authors investigated the tribological behavior of PTFE composites against steel at cryogenic temperatures and found that the friction coefficient decreases with temperature down to 77 K, but did not follow a linear evolution further down to extreme low temperatures.About:
This article is published in Tribology International.The article was published on 2002-07-01. It has received 97 citations till now. The article focuses on the topics: Tribology.read more
Citations
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Wear of polymer composites
TL;DR: In this paper, a review of the use of polymers and polymer composites in various tribological situations has become state of the art, in particular some of the authors' approaches in designing polymeric composites to operate under low friction and low wear against steel counterparts.
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Thermally Activated Friction
TL;DR: In this paper, the temperature dependence of the kinetic friction between a highly oriented pyrolytic graphite surface and a silicon nitride probe tip has been evaluated through atomic force microscopy measurements performed under an ultra-high vacuum environment over the temperature range 140-750 K.
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Cryogenic Friction Behavior of PTFE based Solid Lubricant Composites
TL;DR: In this article, the effect of temperature on the friction coefficient of solid lubricants was evaluated using an adjusted Arrhenius equation, which correlates the coefficient of friction of the polymer materials to their viscoelastic behavior.
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Transition from thermal to athermal friction under cryogenic conditions.
TL;DR: A distinct transition to a largely athermal behavior is detected and is shown to result from the onset of interfacial wear, entailing an alternative energy dissipation pathway.
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Lubrication of polycarbonate at cryogenic temperatures in the split Hopkinson pressure bar
TL;DR: In this paper, the dynamic friction behavior of polycarbonate (PC) was investigated at ambient (26°C) and low temperature (−60°C), using a split Hopkinson pressure bar (SHPB) and specimens of varying thicknesses.
References
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Polymer Properties at Room and Cryogenic Temperatures
TL;DR: In this article, the authors present a list of general polymer features and their relationship with specific heat properties, including the Grueneisen relation and the thermal expansion and thermal conductivity of polymers.
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Self-lubricating polymer composites and polymer transfer film lubrication for space applications
TL;DR: The use of self-lubricating polymers and polymer composites in space is somewhat limited today as mentioned in this paper, however, there is potential for these materials to make a significant impact on future space missions if properly utilized.
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ESCA study on tribochemical characteristics of filled PTFE
Gong Deli,Xue Qunji,Wang Hongli +2 more
TL;DR: In this article, the ECA analyses were performed on the frictional tracks on metal blocks covered with the transfer films of PTFE-based composites containing zinc, copper, and lead powders.
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Tribological behaviour of materials at cryogenic temperatures
TL;DR: In this article, the authors presented results of low temperature investigations on the tribological behavior of polymers and composites as well as of TiN and carbon coating systems, and different cryotribometers were constructed for different cooling and loading conditions in the temperature range from 4.2 K up to room temperature.
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Investigation of adhesion wear of filled polytetrafluoroethylene by ESCA, AES and XRD
TL;DR: In this article, the wear behavior of polytetrafluoroethylene (PTFE)-based composites incorporated by metal powders or metal oxides was studied by rubbing against smooth surfaces of steel, aluminium and copper on a reciprocating tester.