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Home  >  Volume 46 (May, 2018)

30. THEORETICAL PREDICTION OF ALL COMPONENT ACTIVITIES IN TERNARY LEAD-FREE SOLDER ZN-IN-SN ALLOYS AT DIFFERENT TEMPERATURES by Odusote Y. A., Oluyamo S. S. and Aina O. V. Volume 46 (May, 2018 Issue), pp233 –242
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THEORETICAL PREDICTION OF ALL COMPONENT ACTIVITIES IN TERNARY LEAD-FREE SOLDER ZN-IN-SN ALLOYS AT DIFFERENT TEMPERATURES

Odusote Y. A., Oluyamo S. S. and Aina O. V.

Condensed Matter Research Group, Department of Physics, The Federal University of Technology, P. M. B. 704, Akure.

Abstract 

Thermodynamic activities of the constituents in the binary In-Zn,Sn- Zn and In-Sn systems have been theoretically predicted at 700 K, 750 K and 700 K, respectively, using the molecular interaction volume model (MIVM). The results obtained showed good agreement with corresponding experimental data. On this premise, we proceeded to predict the activities of all the components in ternary Zn-In-Sn alloys at the three cross-sections with a constant molar ratios of In:Sn = 1:2, 2:2, 2:1in the temperature range 753-853 K. The results obtained were compared with available experimental data. The study showed that the MIVM model could serve as an alternative approach to the time-consuming and laborious experiments in describing the activities of multicomponent alloy systems using only the corresponding binary infinite dilution activity coefficients.

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