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 :
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Surface energy of liquid metals – Thermodynamic model
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