Abstract
The process of melting small spherical particles in contact with a plane solid surface is considered on the basis of a thermodynamic approach. It is shown that (i) the surface of the substrate affects the melting process of a small particle even if the liquid adsorbate does not wet the substrate. The melting temperature of the particle decreases with decreasing contact angle between the liquid adsorbate and the solid substrate. (ii) If the interaction between the substrate and the adsorbate is weak (the contact angle between the liquid adsorbate and substrate is close to 180°) then the probability of the particle melting at the bulk melting temperature is less than 1.
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