Surface energy of liquid metals – Thermodynamic model
Surface tension of liquid metals and capillarity
Article REF: M67 V3
Surface energy of liquid metals – Thermodynamic model
Surface tension of liquid metals and capillarity

Authors : Nicolas EUSTATHOPOULOS, Béatrice DREVET

Publication date: September 10, 2017 | Lire en français

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3. Surface energy of liquid metals – Thermodynamic model

The physical origin of σ can be easily understood using Skapski's simple "cut bond" model . Assuming that the cohesion of the liquid is ensured by interactions between close neighboring atoms, and denoting by ε the energy of a bond between closer neighboring atoms (by definition ε < 0), the energy u S to be supplied to create a free surface, reduced to the unit area, is written :

uS=−mzε/(2ω)
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