Abstract
The dynamic viscosities of the melts of pure tin and eutectic Sn-Ag, Sn-Cu, and Sn-Ag-Cu alloys are studied in heating followed by cooling, and the maximum heating temperature was 1200°C. An irreversible decrease in the viscosity is found in the temperature range 800–1000°C in the polytherms of all melts. This finding is related to the loss of a local order in a melt and can be used to develop temperature regimes for the production of lead-free solders.
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Original Russian Text © E.V. Rozhitsina, S. Gruner, I. Kaban, W. Hoyer, V.E. Sidorov, P.S. Popel’, 2010, published in Rasplavy, 2010, No. 2, pp. 26–31.
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Rozhitsina, E.V., Gruner, S., Kaban, I. et al. Dynamic viscosities of pure tin and Sn-Ag, Sn-Cu, and Sn-Ag-Cu eutectic melts. Russ. Metall. 2011, 118–121 (2011). https://doi.org/10.1134/S0036029511020108
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DOI: https://doi.org/10.1134/S0036029511020108