Kosenkov D. V.1, Sagadeev V. V.1
1Kazan National Research Technological University, Kazan, Russia
Email: dmi-kosenkov@yandex.ru
A systematic analysis of the emissivity of liquid metals as a function of melting point, surface tension, and the position of elements in the Periodic Table has been carried out. Stable correlations between emissivity and thermodynamic characteristics, as well as the periodicity of emissivity variation within periods, have been established. The analysis suggests the existence of a common factor shaping both radiative and surface properties in the near-surface region of the melt. The obtained dependences can be applied to predict emissivity under conditions where direct measurements are difficult and can be used in modeling thermal radiation in high-temperature systems. Keywords: emissivity, liquid metals, periodicity, surface tension, melting point, correlation.
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