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Theoretical investigation of some physicochemical properties in the liquid Sn–Ag–Cu alloys

Group of Physical Chemistry of Materials and Nanomaterials: Cleanup, Environment and Sustainable Development, Faculty of Sciences, University of Mohammed V-Rabat, Av. Ibn Battouta, PB 1014, 10500 Rabat, Morocco

E-mail Address: mcharr_22@live.fr

Corresponding author.

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Abdelaziz Sabbar

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Mouloud El Moudane

Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, University of Mohammed V-Rabat, Av. Ibn Battouta, PB 1014, 10500 Rabat, Morocco

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, and

Ahmed Ghanimi

Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, University of Mohammed V-Rabat, Av. Ibn Battouta, PB 1014, 10500 Rabat, Morocco

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https://doi.org/10.1142/S0219633617500407Cited by:2 (Source: Crossref)

Abstract

Some physicochemical properties such as surface tension, molar volume, density and viscosity of liquid Sn–Ag–Cu alloys have been calculated using Kohler, Muggianu, Toop and Hillert geometrical models along three cross-sections namely $x_{Ag}$ $x_{Ag}$ / $x_{Cu} = 1 ∕ 2$ $x_{Cu} = 1 ∕ 2$ , 1/1 and 2/1. Indeed, Guggenheim, Kozlov–Romanov–Petrov and Kaptay equations have also been extended to estimate the surface tension and viscosity based on the thermodynamic data of the investigated system over wide temperature ranges of 823–1123K and 773–1173K, respectively. The results show that the three investigated properties, surface tension, density and viscosity, decrease with increasing tin for all studied models. On the other hand, a different behavior of these properties as a function of the temperature was noted. This evolution depends on the composition of the studied alloys.

On the contrary, the molar volume increases with increase of temperature and tin compositions. It should be noted that the surface tension, density and molar volume show a linear dependence on temperature for all the investigated compositions. For viscosity, a curvilinear dependence has been observed. The calculated surface tensions and densities were compared with those reported experimentally for Sn–Ag–Cu alloys along the cross-section $x_{Ag}$ $x_{Ag}$ / $x_{Cu} =$ $x_{Cu} =$ 1/1.

Keywords:

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