Abstract:
The temperature and concentration dependences of the surface tension of lithium alloys $($up to $33.1$ at $\%)$ on the basis of a eutectic melt of $\rm Pb_{44.7}Bi_{55.3}$ are measured in the range from the liquidus temperature to $700$ K. The margin of error of the experiments was $\sim2\%$. Lithium has a low surface activity in the $\rm Pb_{44.7}Bi_{55.3}$ eutectic melt, which agrees with the criteria of the surface activity of components in binary liquid metal melts.
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