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Modeling of some physicochemical properties in the liquid Au–Bi–Sn alloys relevant for Pb-free soldering

Equipe of Physical Chemistry of Materials and Nanomaterials: Cleanup, Environment and Sustainable Development, Faculty of Sciences, University of Mohammed V-Rabat, Ibn Battouta Av, P.B. 1014, Rabat, Morocco

E-mail Address: mchaar_22@live.fr

Corresponding author.

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Salma Belmoujoud

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Abdelaziz Sabbar

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Mouloud El Moudane

Department of Chemistry, Laboratory of Materials, Nanotechnology and Environment Faculty of Sciences, University of Mohammed V-Rabat, Av. Ibn Battouta, P.B. 1014, Rabat, Morocco

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, and

Ahmed Ghanimi

Department of Chemistry, Laboratory of Materials, Nanotechnology and Environment Faculty of Sciences, University of Mohammed V-Rabat, Av. Ibn Battouta, P.B. 1014, Rabat, Morocco

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https://doi.org/10.1142/S0219633617500158Cited by:3 (Source: Crossref)

Abstract

In this paper, some geometrical models such as Kohler, Muggianu, Toop, and Hillert have been used to estimate the molar volume of Au–Bi–Sn ternary systems based on the data of sub-binary systems over a wide temperature range (673–973K). The density of Au–Bi–Sn alloys was calculated from the calculated molar volume and using theoretical equation along three cross-sections $x_{Au}$ / $x_{Bi} = 1$ /2, 1/1 and 2/1. In addition, the viscosity of Au–Bi–Sn alloys was calculated by using Seetharaman–Sichen equation over a wide temperature range (673–1273K). The density of these alloys show linear dependence on temperature for all investigated compositions, while the molar volumes increase with increasing temperature and Sn compositions. The results show, as a function of temperature, that the increase in concentration of tin influences the viscosity of the Au–Bi–Sn alloys. The calculated values of density of Au–Bi–Sn alloys are compared with the experimental values reported in the literature, and a good agreement was observed.

Keywords:

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