Curvature Dependence of the Liquid-Vapor Surface Tension beyond the Tolman Approximation.

@article{Bruot2016CurvatureDO,
  title={Curvature Dependence of the Liquid-Vapor Surface Tension beyond the Tolman Approximation.},
  author={Nicolas Bruot and Fr{\'e}d{\'e}ric Caupin},
  journal={Physical review letters},
  year={2016},
  volume={116 5},
  pages={
          056102
        }
}
Surface tension is a macroscopic manifestation of the cohesion of matter, and its value σ_{∞} is readily measured for a flat liquid-vapor interface. For interfaces with a small radius of curvature R, the surface tension might differ from σ_{∞}. The Tolman equation, σ(R)=σ_{∞}/(1+2δ/R), with δ a constant length, is commonly used to describe nanoscale phenomena such as nucleation. Here we report experiments on nucleation of bubbles in ethanol and n-heptane, and their analysis in combination with… CONTINUE READING
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