Experimental investigation of the effects of gravity on thermosolutal convection and compositional homogeneity in bridgman grown,compound semiconductors |
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Authors: | RK Crouch AL Fripp WJ Debnam IO Clark PG Barber FM Carlson |
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Institution: | NASA-Langley Research Center, Hampton, VA 23665 U.S.A. |
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Abstract: | Lead-tin-telluride has been grown in a thermally stable mode (solutally unstable) and in a solutally stable (thermally unstable) mode in a Bridgman configuration. Significant differences in the crystal morphology and the compositional homogeneity have been found between the two configurations. In addition, for the solutally stable configuration, evidence has been found that the flow characteristics in the melt change drastically during the course of the run. |
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