Temperature dependence of friction under cryogenic conditions in vacuum
| Autor: | Peter Taborek, Justin Burton, J. E. Rutledge |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Cryostat
Materials science Physics::Instrumentation and Detectors Mechanical Engineering Surfaces and Interfaces Systematic variation Atmospheric temperature range Steel ball Surfaces Coatings and Films High speed video Mechanics of Materials Ball (bearing) Sapphire Dynamical friction Composite material |
| Zdroj: | Tribology Letters. 23:131-137 |
| ISSN: | 1573-2711 1023-8883 |
| DOI: | 10.1007/s11249-006-9115-7 |
| Popis: | We have constructed a sliding block cryotribometer designed to measure friction at cryogenic temperatures and UHV conditions. An optical cryostat and high speed video was used to monitor the motion of the block. The temperature range of the measurements was 4–460 K. Both the static and dynamic friction coefficients were determined for a steel ball on stainless steel, sapphire, and PTFE (Teflon) plates, and for a sapphire ball on a sapphire plate. For all material combinations, no systematic variation of friction with temperature was observed in the temperature range 4–200 K. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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