Abstract
The surface tension and density of Co–Sn and Co–Sb melts with introduced Al2O3 nanoparticles (dav = 41 nm) are studied by the sessile drop method. The related change in the structural properties of the metal, in particular, the inversion of the temperature coefficient of surface tension, has been revealed. The influence of formed Co + (Al2O3–Sn/Sb) ensembles on the melt density is considered in terms of the quasi-chemical theory of metallic melts. For example, for the Co–Sn–Al2O3 system, the looseness, as a rule, decreases; in the Co–Sb–Al2O3 system, on the contrary, it increases. This finding indicates a different influence of Co + (Al2O3–Sn) and Co + (Al2O3–Sb) ensembles on the change in the cluster structure of the melt and its surface properties.
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Notes
From here on, the element contents are given in wt %.
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ACKNOWLEDGMENTS
We thank A.A. Rakitin for his assistance with this study.
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This work was supported by state assignment no. 075-00715-22-00.
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Translated by K. Shakhlevich
See part I [1].
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Anuchkin, S.N., Burtsev, V.T. & Samokhin, A.V. Interaction of Exogenous Aluminum Oxide Nanophases with Tin and Antimony in Cobalt Melts. II. Surface Tension and Density. Russ. Metall. 2023, 54–61 (2023). https://doi.org/10.1134/S0036029523010032
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DOI: https://doi.org/10.1134/S0036029523010032