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Volumn 284, Issue 5420, 1999, Pages 1650-1652

Adsorbed layers and the origin of static friction

Author keywords

[No Author keywords available]

Indexed keywords

ADSORPTION; ARTICLE; CRYSTAL; FRICTION; GEOMETRY; LUBRICATION; MOLECULAR DYNAMICS; PHYSICAL CHEMISTRY; PRIORITY JOURNAL; SOLID; SURFACE PROPERTY; VACUUM;

EID: 0005681276     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.284.5420.1650     Document Type: Article
Times cited : (416)

References (38)
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    • note
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    • Real surfaces are rarely perfect single crystals, but including disorder without third bodies does not seem to explain experimental observations. The static friction between stiff random surfaces is a finite-size effect that drops as the inverse of the contact diameter. We find that values can be appreciable on the scale of AFM tips (<40 atomic diameters), but not in micrometer-scale contacts. Elastic deformation at large scales can yield static friction, but the values are exponentially small for weak disorder (5).
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    • note
    • Financial support from NSF grant DMR-9634131 is gratefully acknowledged. We are also grateful to Intel for donating workstations on which these simulations were run.


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