Abstract
The capillary force was measured by atomic force microscopy between a gold coated sphere mounted on a cantilever and gold surfaces with different roughnesses. For smooth surfaces the capillary adhesive force surpasses in magnitude any dispersion, e.g., van der Waals/Casimir and/or electrostatic forces. A substantial decrease in the capillary force was observed by increasing the roughness ampltitude a few nanometers in the range of 1–10nm. From these measurements two limits can be defined: a smooth limit where a closely macroscopic size contact surface interacts through the capillary force and a rough limit where only a few asperities give a capillary contribution.
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Dates
Type | When |
---|---|
Created | 18 years ago (Sept. 5, 2007, 6:37 p.m.) |
Deposited | 2 years, 2 months ago (June 22, 2023, 6:23 p.m.) |
Indexed | 4 weeks, 2 days ago (Aug. 6, 2025, 9:46 a.m.) |
Issued | 18 years ago (Sept. 3, 2007) |
Published | 18 years ago (Sept. 3, 2007) |
Published Online | 18 years ago (Sept. 5, 2007) |
Published Print | 18 years ago (Sept. 3, 2007) |
@article{van_Zwol_2007, title={Influence of random roughness on the adhesion between metal surfaces due to capillary condensation}, volume={91}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2768919}, DOI={10.1063/1.2768919}, number={10}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={van Zwol, P. J. and Palasantzas, G. and De Hosson, J. Th. M.}, year={2007}, month=sep }