Abstract
Research into the curved interfaces is an important problem of first-order phase transitions. The curvature dependence of the surface tension is important for the description of nucleation phenomena and fluids in microcapillaries or nanopores. When the droplet radius becomes very small, its surface tension is different from that of a large droplet. It is difficult to determine a size dependence of the surface tension by an experiment; only theoretical models are available. Several models for the size dependence based on the Gibbs–Tolman–Koenig–Buff (GTKB) equation have been published recently. With the usage of the GTKB equation, the exact relationship between the microdroplet surface tension and the radius can be obtained. Different models are discussed, and a new approximation of the size dependence of the surface tension is presented.
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Acknowledgments
The research was supported by the Czech Science Foundation under Grant P101-13-20467P.
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Kalová, J., Mareš, R. Size Dependences of Surface Tension. Int J Thermophys 36, 2862–2868 (2015). https://doi.org/10.1007/s10765-015-1851-1
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DOI: https://doi.org/10.1007/s10765-015-1851-1