Author： Fima Przemysław Sobczak Natalia
Publisher： Springer Publishing Company
ISSN： 0195-928X
Source： International Journal of Thermophysics, Vol.31, Iss.6, 2010-06, pp. : 1165-1174
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Abstract
The surface tension and density of liquid Ag and Ag–Cu alloys were measured with the sessile drop method. The sessile drop tests were carried out at temperatures from 1098K to 1573 K, on cooling (temperature decreasing stepwise) under a protective atmosphere of high purity Ar (6N). The density of liquid Ag and Ag–Cu alloys decreases linearly with increasing temperature, and an increase in concentration of copper results in a lower density. The surface tension dependence on temperature can be described by linear equations, and the surface tension increases with increasing Cu content. The results of the measurements show good agreement with existing literature data and with thermodynamic calculations made using the Butler equation.
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