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Surface tension and viscosity–temperature dependence and mutual causal correlation in tin-silver alloys

   Hüseyin ARSLAN

A B S T R A C T
Thermo-physical properties for binary and multi-components alloys are important for controlling and designing
metallurgical processes. However, it is difficult to get data from systems of a high order in terms of experience.
On the theoretical level, different formalisms have been adopted for determining the structural, transport, and
electronic properties, therefore, most thermo-physical data from calculations theoretical. Indeed, to choose the
best substitute alloy, many criteria must be taken into account, in particular the surface tension, density, viscosity,
and friccohesity. The Sn-Ag binary alloy is one of the most common lead-free solders. It is characterized
by more interesting thermo-physical properties. In the present work, we have suggested novel empirical expressions
of these physicochemical properties against the temperature where the corresponding obtained optimal
coefficients are expressed with mole composition of tin which permit us to combine the two dependences and
propose unified equations correlating thermophysical properties of the alloy as the function of both the independent
variables the temperature and composition.

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