Thermal and Electrical Properties of Sn-Zn-Bi Ternary Soldering Alloys


Sn-Zn based solder is a possible replacement of Pb solder because of its better mechanical properties. The alloys need to be studied and explored to get a usable solder alloy having better properties. In this work, eutectic Sn-9Zn and three Tin-Zinc-Bismuth ternary alloys were prepared and investigated their thermal and electrical properties. Thermo-mechanical Analysis and Differential Thermal Analysis were used to investigate thermal properties. Microstructural study is carried out with Scanning Electron Microscope. The alloys have single melting point. The co-efficient of thermal expansion and co-efficient of thermal contraction varies with alloy composition and temperature range. Electrical conductivity changes with Bi addition.

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Wadud, M. , Gafur, M. , Qadir, M. and Rahman, M. (2015) Thermal and Electrical Properties of Sn-Zn-Bi Ternary Soldering Alloys. Materials Sciences and Applications, 6, 1008-1013. doi: 10.4236/msa.2015.611100.

Conflicts of Interest

The authors declare no conflicts of interest.


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