Density and Surface Tension Polytherms and Isotherms of Molten Lead-Sodium Alloys

Abstract

⎯Polytherms of density and surface tension of lead alloys with minor sodium percentages were studied in heating mode in a range from Pb-Na melting temperature to 650°C under the atmosphere of pure Grade A He (99.995 %). It has been established that density and surface tension decrease with increased temperature, while increasing sodium content in the alloys to 4%wt leads to a significant decrease in surface tension.