Formation and Initial Growth of Single-Asperity Solid-State Bonds

Abstract
A gold needle point in contact with a gold flat has been used to study the formation and initial growth of single-asperity solid-state bonds. In the absence of external pressure, the growth of the bonded area can be expressed analytically by a diffusion-controlled rate equation. Values for the coefficient of self-diffusion determined from these experiments are in reasonable agreement with those given in the recent literature.

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