The aim of this work is to fill this gap. There exists no clear formalism describing the coupling effect temperature and the oxygen content upon the surface tension of liquid metals. Strictly speaking, when referring to the surface tension of liquid metals, both variables temperature and oxygen content must be specified. For this reason, experimental surface tension data of metals reported in literature are scattered. The surface tension and its temperature dependence are drastically influenced by the level of impurities in the metal such as oxygen, sulphur or carbon. An accurate knowledge of the surface tension of liquid metals is critical for many theoretical and practical applications, especially in the current context of emerging growth of nanotechnology.
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