Surface tension and contact angles of molten cadmium telluride |
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Authors: | R. Balasubramanian W. R. Wilcox |
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Affiliation: | (1) Department of Chemical Engineering and Center for Advanced Materials Processing, Clarkson University, 13676 Potsdam, New York, USA |
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Abstract: | The surface tension and contact angle of molten cadmium telluride (CdTe) were measured as a function of temperature by the sessile drop technique. A FORTRAN code was developed to calculate the surface tension of sessile drops, with the contact angle ranging from O to 180°. The wetting of cadmium telluride melt was studied on different surfaces. The surface tension of cadmium telluride was about 160 ±5 dynes · cm–1[1.6 m–1] at the melting point of 1093°C. The contact angle of CdTe melt was about 65° on a quartz optical flat, 75° on commercial fused quartz, and 125° on boron nitride coated quartz.Paper presented at the Tenth Symposium on Thermophysical Properties, June 20–23, 1988, Gaithersburg, Maryland, U.S.A. |
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Keywords: | cadmium telluride contact angle melting point surface tension vapor pressure |
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