Temperature Dependence of Viscosity and Surface Tension in Zn-Cd Liquid Alloy Using Optimization Method

H. K. Limbu^1, and G.P. Adhikari¹

¹Department of Physics, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal

Cite this paper:
H. K. Limbu and G.P. Adhikari. Temperature Dependence of Viscosity and Surface Tension in Zn-Cd Liquid Alloy Using Optimization Method. International Journal of Physics. 2020; 8(3):81-89. doi: 10.12691/ijp-8-3-1

Abstract

We have computed interchange energy by estimating the best fit experimental and theoretical values at 800K using Flory’s model. Taking these values at 800K, interchange energy at different temperatures are calculated using optimization method and with the help of which free energy of mixing, heat of mixing and entropy of mixing are obtained. The partial excess free energy is calculated with the help of values of free energy of mixing which is used to find surface tension. Butler’s equation and Layered structure approach have been used to calculate surface tension of Zn-Cd alloy. Viscosity is obtained from Singh and Sommer’s formulation, Moelwyn-Hughes equation, and Kaptay equation.

Keywords:
Flory’s model different temperatures surface tension viscosity interchange energy optimization method

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