Effect of metal purity and testing procedure on surface tension measurements of liquid tin |
| |
Authors: | Przemys?aw Fima Rafa? Nowak Natalia Sobczak |
| |
Affiliation: | (1) Center for High Temperature Studies, Foundry Research Institute, 73 Zakopianska St., 30-418 Krakow, Poland;(2) Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland |
| |
Abstract: | The surface tension of liquid tin of three different grades of purity (99.85, 99.96, and 99.999%) was measured by the classical
sessile drop method over the temperature range 523–1023 K, in heating and cooling regimes. The results obtained show that
the metal purity affects the values of surface tension and its temperature dependence. The highest values of surface tension
and smooth linear temperature dependence were obtained in cooling regime for tin of the highest purity. With increasing content
of impurities, both surface tension and its temperature coefficient decrease while the scatter of the data increases. The
surface tension values measured on heating regime show higher scatter, compared to those obtained in cooling regime, and the
temperature dependence of the surface tension is curvilinear rather than linear. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|