Details

Autor(en) / Beteiligte

• Zajączkowski, Andrzej

Titel

Thermodynamics of liquid Pb–In–Sn alloys determined by vapour pressure measurements

Ist Teil von

• Calphad, 2021-12, Vol.75, p.102358, Article 102358

Ort / Verlag

Elmsford: Elsevier Ltd

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Application of Knudsen method for studies of liquid Pb–In and Pb–In–Sn alloys in temperatures 868–1200 and 848–1219 K, respectively, provided experimental data which made it possible to characterize thermodynamic properties of liquid phase of Pb–In and Pb–In–Sn systems. The produced experimental data were used in the optimization procedure aimed at determination of parameters of thermodynamic models of the Pb–In and Pb–In–Sn systems, linking the measured mass change rates with the thermodynamic properties of these systems. The model applied in this procedure uses equations proposed by Pelton and Bale, modified in the scope of this study. They provide an extension of the standard “dilute interaction parameter formalism” to non-dilute solutions. Parameters of the equations were calculated during optimization procedure using the least square method where the author’s experimental database was supplemented with the data which characterize molar enthalpies of mixing of both examined liquid alloys. •The Knudsen method for liquid Pb–In and Pb–In–Sn alloys was applied.•Gibbs energy of liquid Pb–In and Pb–In–Sn alloys was described.•In the description of Gibbs energy modified Pelton and Bale equations were applied.•The applied modification makes Pelton and Bale equations applicable in the description of the whole range of concentrations.