Axisymmetric, time-dependent simulations of the high-pressure vertical Bridgman growth of large-diameter cadmium zinc telluride are performed to study the effect of accelerated crucible rotation (ACRT) on crystal growth dynamics. The model includes details of heat transfer, melt convection, solid-liquid interface shape, and dilute zinc segregation. Application of ACRT greatly improves mixing in the melt, but causes an overall increased deflection of the solid-liquid interface. The flow exhibits a Taylor-Gortler instability at the crucible sidewall, which further enhances melt mixing.
|Original language||English (US)|
|Title of host publication||Fluids Engineering|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||12|
|State||Published - 2000|
|Event||ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000 - Orlando, United States|
Duration: Nov 5 2000 → Nov 10 2000
|Name||ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)|
|Conference||ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000|
|Period||11/5/00 → 11/10/00|
Bibliographical noteFunding Information:
This manuscript is based on a presentation given at the 2000 International Mechanical Engineering Congress and Exposition, Orlando, FL, November 5-10, 2000. This work was supported in part by Sandia National Laboratory under contract SNL/LG-5513 and by the National Aeronautics and Space Administration, Microgravity Materials Science. Computational resources were provided by the University of Minnesota Supercomputing Institute and the Army High Performance Computing Research Center under the auspices of the Department of the Army, Army Research Laboratory cooperative agreement DAAH04-95-2-0003/contract DAAH04-95-C-0008, the content of which does not necessarily reflect the position or policy of the government, and no official endorsement should be inferred.
© 2000 by ASME.