Measured thermal diffusivity of Hg1−xCdxTe solids and melts
- 1 July 1983
- journal article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology A
- Vol. 1 (3) , 1615-1619
- https://doi.org/10.1116/1.572241
Abstract
The thermal diffusivity of Hg1−xCdxTe melts is found to rise rapidly with temperature to values characteristic of metals. Solid and melt diffusivities for values of x from 0 to 0.3 and over a temperature range from 150 to 900 °C have been determined by the laser flash method of Parker, Taylor, and Cowan. The diffusivity decreases from a maximum at x=0 in both the solid and the liquid, with the values observed at x=0.3 being about 40% of those for x=0. The solid diffusivity for x=0 is 1.7 mm2/s at 150 °C, decreasing to 0.7 mm2/s at the melting point. The x=0 liquid diffusivity increases from 0.7 mm2/s at the melting point to 3.5 mm2/s at 900 °C.Keywords
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