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- Superlubricity abstract "Superlubricity is a regime of motion in which friction vanishes or very nearly vanishes.Superlubricity may occur when two crystalline surfaces slide over each other in dry incommensurate contact. This effect, also called structural lubricity, was suggested in 1991 and verified with great accuracy between two graphite surfaces in 2004.The atoms in graphite are oriented in a hexagonal manner and form an atomic hill-and-valley landscape, which looks like an egg-crate. When the two graphite surfaces are in registry (every 60 degrees), the friction force is high. When the two surfaces are rotated out of registry, the friction is largely reduced. This is like two egg-crates which can slide over each other more easily when they are "twisted" with respect to each other.Observation of superlubricity in microscale graphite structures was reported in 2012, by shearing a square graphite mesa a few micrometers across, and observing the self-retraction of the sheared layer. Such effects were also theoretically described for a model of graphene and nickel layers. This observation, which is reproducible even under ambient conditions, shifts interest in superlubricity from a primarily academic topic, accessible only under highly idealized conditions, to one with practical implications for micro and nanomechanical devices.A state of ultralow friction can also be achieved when a sharp tip slides over a flat surface and the applied load is below a certain threshold. Such "superlubric" threshold depends on the tip-surface interaction and the stiffness of the materials in contact, as described by the Tomlinson model.The threshold can be significantly increased by exciting the sliding system at its resonance frequency, which suggests a practicalway to limit wear in nanoelectromechanical systems.The similarity of the term superlubricity with terms such as superconductivity and superfluidity is misleading; other energy dissipation mechanisms can lead to a finite (normally small) friction force.".
- Superlubricity thumbnail Incommensurabilité_2.jpg?width=300.
- Superlubricity wikiPageID "592513".
- Superlubricity wikiPageLength "5607".
- Superlubricity wikiPageOutDegree "22".
- Superlubricity wikiPageRevisionID "673224348".
- Superlubricity wikiPageWikiLink Argonne_National_Laboratory.
- Superlubricity wikiPageWikiLink Category:Condensed_matter_physics.
- Superlubricity wikiPageWikiLink Chemical_force_microscopy.
- Superlubricity wikiPageWikiLink Dimensional_analysis.
- Superlubricity wikiPageWikiLink Friction.
- Superlubricity wikiPageWikiLink Friction_force_microscopy.
- Superlubricity wikiPageWikiLink Graphite.
- Superlubricity wikiPageWikiLink Hexagon.
- Superlubricity wikiPageWikiLink Hexagonal.
- Superlubricity wikiPageWikiLink IBM_Mira.
- Superlubricity wikiPageWikiLink LAMMPS.
- Superlubricity wikiPageWikiLink Message_Passing_Interface.
- Superlubricity wikiPageWikiLink Nanoelectromechanical_systems.
- Superlubricity wikiPageWikiLink OpenMP.
- Superlubricity wikiPageWikiLink ReaxFF.
- Superlubricity wikiPageWikiLink Regime.
- Superlubricity wikiPageWikiLink Resonance.
- Superlubricity wikiPageWikiLink Resonance_frequency.
- Superlubricity wikiPageWikiLink Structural_lubricity.
- Superlubricity wikiPageWikiLink Superconductivity.
- Superlubricity wikiPageWikiLink Superfluid.
- Superlubricity wikiPageWikiLink Superfluidity.
- Superlubricity wikiPageWikiLink Tomlinson_model.
- Superlubricity wikiPageWikiLink Unit_commensurability.
- Superlubricity wikiPageWikiLink File:Incommensurabilité_2.jpg.
- Superlubricity wikiPageWikiLink File:Incommensurabilité_4.jpg.
- Superlubricity wikiPageWikiLinkText "Superlubricity".
- Superlubricity wikiPageWikiLinkText "superlubricity".
- Superlubricity hasPhotoCollection Superlubricity.
- Superlubricity wikiPageUsesTemplate Template:Reflist.
- Superlubricity subject Category:Condensed_matter_physics.
- Superlubricity hypernym Regime.
- Superlubricity type Country.
- Superlubricity type Physic.
- Superlubricity comment "Superlubricity is a regime of motion in which friction vanishes or very nearly vanishes.Superlubricity may occur when two crystalline surfaces slide over each other in dry incommensurate contact. This effect, also called structural lubricity, was suggested in 1991 and verified with great accuracy between two graphite surfaces in 2004.The atoms in graphite are oriented in a hexagonal manner and form an atomic hill-and-valley landscape, which looks like an egg-crate.".
- Superlubricity label "Superlubricity".
- Superlubricity sameAs Supraschmierfähigkeit.
- Superlubricity sameAs Supraliukuvuus.
- Superlubricity sameAs Superlubrificazione.
- Superlubricity sameAs Supersmering.
- Superlubricity sameAs m.02t96r.
- Superlubricity sameAs Q841960.
- Superlubricity sameAs Q841960.
- Superlubricity sameAs 超润滑.
- Superlubricity wasDerivedFrom Superlubricity?oldid=673224348.
- Superlubricity depiction Incommensurabilité_2.jpg.
- Superlubricity isPrimaryTopicOf Superlubricity.