Abstract
Bowden and Tabor1 have shown that the adhesive force between a smooth sphere and a smooth plane due to a surface film of liquid is independent of the amount of liquid held between the surfaces. This is not true for the case of a cylinder in contact with a plane, when the adhesive force per unit length of cylinder is where R is the cylinder radius, r the radius of curvature of the liquid meniscus and v the surface tension. According to (1), A will increase as r is reduced by decreasing the amount of liquid present. The adhesion will not become infinite, but its maximum value will be determined by the tensile strength of the liquid or by the surface roughness.
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References
Bowden, F. P., and Tabor, D., “The Friction and Lubrication of Solids”, 300 (Clarendon Press, 1950).
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KING, G. Influence of Liquid Films on Fibre Friction. Nature 175, 383 (1955). https://doi.org/10.1038/175383a0
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DOI: https://doi.org/10.1038/175383a0
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