Phys. Rev. B 65, 235429 (2002) [5 pages]Time scales for cold welding and the origins of stick-slip frictionReceived 18 January 2002; published 18 June 2002 Data from an instrument that measures conductance, stiffness, and rupture strength of junctions indicates that when two macroscopic metal surfaces are brought into contact a nanometer size junction spontaneously forms over a long time scale (∼60 s). Furthermore, the parameters of junction rupture match the observed dynamics of stick-slip friction. This suggests that stick-slip friction has its origins in the formation and rupture of junctions that form between surfaces in contact. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.235429
DOI:
10.1103/PhysRevB.65.235429
PACS:
68.35.Af
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