Influence of oxygen contamination on the surface tension of liquid tin
作者： A. Passerone , E. Ricci , R. Sangiorgi
DOI: 10.1007/BF00581083
关键词: Materials science 、 Tin 、 Thermodynamics 、 Sessile drop technique 、 Surface-tension values 、 Mineralogy 、 Kinetic energy 、 Drop (liquid) 、 Surface tension 、 Controlled atmosphere 、 Oxygen 、 Mechanical engineering 、 General Materials Science 、 Mechanics of Materials
摘要: The surface tension of liquid tin has been measured by the sessile-drop technique as a function temperature, in range 232 ⩽T (°C) ⩽ 800 and under different atmospheres. It is shown that oxygen strongly affects values that, “nominally” very clean conditions, considerable scatter experimental results occurs. This can be explained taking into account kinetic factors, especially those related to gaseous fluxes around molten drop. By this procedure, number singled out, which corresponds “clean” conditions. On basis these results, following expression for politherm proposed: σ(mN m−1 = 581-0.13) (t-232).
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