Temperature dependence of surface tension and capillary waves at liquid metal surfaces |
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Authors: | V Kolevzon |
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Institution: | (1) Institute of Physical Chemistry, University of Karlsruhe, 76128 Karlsruhe, Germany |
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Abstract: | The temperature dependence of the surface tension γ(T) is treated theoretically and experimentally. The theoretical model based on the Gibbs thermodynamics of a one-component
fluid relates ∂γ/∂T to the surface excess entropy density −ΔS. All specific surface effects, namely ordering, capillary waves, and double layer influence the surface entropy, which in
turn governs the sign and the magnitude of ∂γ/∂T. Experimental data collected at a free Hg surface in the temperature range from 0°C to 30°C show that ∂γ/∂T is negative.
Zh. éksp. Teor. Fiz. 114, 2034–2042 (December 1998)
Published in English in the original Russian journal. Reproduced here with stylistic changes by the Translation Editor. |
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