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The surface and the linear tension and the contact angle of a small drop under isothermal conditions

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Abstract

A small lying drop is investigated considering the linear tension at the three-phase boundary under thermodynamic and mechanical equilibrium. Formulas for the surface tension at the liquid-vapor interface, the linear tension, and the contact angle are found by the Gibbs dividing surface method. It is shown that the surface tension and the contact angle decrease while the absolute value of the linear tension increases with decreasing radius of the surface curvature. Comparison of theoretical predictions with experimental data obtained by atomic-force microscopy shows a satisfactory agreement and evidences that the linear tension must be negative.

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References

  1. Rekhviashvili, S.Sh. and Kishtikova, E.V., Zh. Tekh. Fiz., 2011, vol. 81, no. 1, p. 148.

    Google Scholar 

  2. Rekhviashvili, S.Sh., Kishtikova, E.V., and Sokurov, A.A., Vektor Nauki TGU, 2012, no. 4, p. 115.

    Google Scholar 

  3. Rekhviashvili, S.Sh. and Kishtikova, E.V., Prot. Met. Phys. Chem. Surf., 2012, vol. 48, no. 4, p. 402.

    Article  Google Scholar 

  4. Ono, S. and Kondo, S., Molecular Theory of Surface Tension in Liquids, Berlin: Springer, 1960.

    Google Scholar 

  5. Rusanov, A.I., Fazovye ravnovesiya i poverkhnostnye yavleniya (Phase Equilibrium and Surface Phenomena), Leningrad: Khimiya, 1967.

    Google Scholar 

  6. Rowlinson, J.S. and Widom, B., Molecular Theory of Capillarity, Mineola, N. Y.: Dover, 2002.

    Google Scholar 

  7. Babak, V.G., Usp. Khim., 1992, vol. 61, no. 10, p. 1777.

    Article  Google Scholar 

  8. Roldugin, V.I., Fizikokhimiya poverkhnosti (Physical Chemistry of the Surface), Dolgoprudnyi: Intellekt, 2008.

    Google Scholar 

  9. Tolman, R.C., J. Chem. Phys., 1949, vol. 17, no. 3, p. 333.

    Article  Google Scholar 

  10. Gladkikh, N.T., Grigor’eva, L.K., Dukarov, S.V, et al., Phys. Solid. State, 1989, vol. 31, no. 5, p. 13.

    Google Scholar 

  11. Checco, A., Schollmeyer, H., Daillant, J., et al., Langmuir, 2006, vol. 22, p. 116.

    Article  Google Scholar 

  12. Babichev, A.P., Babushkina, N.A., Bratkovskii, A.M., et al., Fizicheskie velichiny: Spravochnik, (Physical Quantities: Reference book), Grigor’ev, I.S. and Meilikhov, E.Z., Eds., Moscow: Energoatomizdat, 1991, p. 1232.

  13. Macdonald, B.F., Cole, R.J., and Koutsos, V., Surf. Sci., 2004, vol. 548, p. 41.

    Article  Google Scholar 

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Correspondence to S. Sh. Rekhviashvili.

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Original Russian Text © S.Sh. Rekhviashvili, E.V. Kishtikova, 2014, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2014, Vol. 50, No. 1, pp. 3–7.

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Rekhviashvili, S.S., Kishtikova, E.V. The surface and the linear tension and the contact angle of a small drop under isothermal conditions. Prot Met Phys Chem Surf 50, 1–4 (2014). https://doi.org/10.1134/S2070205114010110

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  • DOI: https://doi.org/10.1134/S2070205114010110

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