Time Scales for Cold-Welding and the Origins of Stick-Slip Friction

Details Time Scales for Cold-Welding and the Origins of Stick-Slip Friction Time Scales for Cold-Welding and the Origins of Stick-Slip Friction

2002-03-05

arxiv.org/abs/cond-mat/0203075v1

Physics

Condensed Matter

20 pages, 6 figures

Scientific paper

10.1103/PhysRevB.65.235429

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.

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