Abstract
Surface energy measurements have been performed on liquid Ga-Sn binary and on Ga-Pb-Sn as well as Ga-Pb-Tl ternary alloys, by the sessile drop technique under ultrahigh vacuum conditions. The purpose of these measurements was to investigate the change in adsorption behavior of Pb in Garich alloys as a consequence of ternary additions. In order to aid in the interpretation of the results, a multilayer model of surface segregation was formulated in the regular solution approximation. The results show evidence of site competition effects between the two solutes, which reduce the surface concentration of Pb in relation to binary Ga-Pb alloys. The effects of Sn on previously studied wetting-related adsorption transitions in Ga-Pb were also investigated. It was concluded that Sn additions are likely to raise the wetting temperature of the Ga-Pb alloy.
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Serre, C., Chatain, D., Muris, M. et al. Surface energy, adsorption, and wetting transitions in ternary liquid alloys. Metall Mater Trans A 32, 2851–2858 (2001). https://doi.org/10.1007/s11661-001-1035-4
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DOI: https://doi.org/10.1007/s11661-001-1035-4