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Surface tension and density of liquid gold, silver, and tin
Tobias Dubberstein and Hans-Peter Heller
Thermophysical properties, like surface tension and density of liquid gold, silver, and tin were investigated using the conventional measuring techniques of maximum bubble pressure (MBP) and sessile drop (SD) methods. The metals were measured in a temperature range (1337 ≤ T ≤ 1773) K for Au, (1235 ≤ T ≤ 1573) K for Ag and (873 ≤ T ≤ 1073) K for Sn. The surface tension temperature coefficients of the three metals investigated were found to be negative. The scatter of new experimental data with respect to the average values was not significantly high. The surface tension and the density of liquid gold, silver, and tin were found to be within the range of the corresponding literature data obtained by using conventional measuring techniques.
Keywords: Maximum bubble pressure, sessile drop, surface tension, density, noble metals, gold, silver, tin