Letter | Published:

Strain resulting from adhesive action of water in capillary bridges

Naturevolume 256pages717718 (1975) | Download Citation



WE report here on the measurement of adhesive forces of thin films of water between glass plates. Our approach differed from the traditional method of measuring the force necessary to rupture the liquid film in tension1–3; we used interferometry to measure the elastic strains produced around the bridges. The main pupose of the study was to assess the degree of agreement between measured adhesive forces and those predicted by classical capillary theory.

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  1. 1

    McFarlane, J. S., and Tabor, D., Proc. R. Soc., A 202, 224–243 (1950).

  2. 2

    O'Brien, W. J., and Yu, C. U., Surf. Sci., 32, 739–742 (1972).

  3. 3

    O'Brien, W. J., and Hermann, J. J., J. Adhes., 5, 91–103 (1973).

  4. 4

    Timoshenko, S., Theory of Elastic Stability, 314–316 (McGraw-Hill, New York, 1936).

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  1. University of Michigan, Ann Arbor, Michigan, 48104

    • P. L. FAN
    •  & W. J. O'BRIEN


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