Thermomechanical analysis in directional solidification of CdTe
- Clarkson Univ., Potsdam, NY (United States). Dept. of Mechanical and Aeronautical Engineering
- State Univ. of New York, Stony Brook, NY (United States). Dept. of Material Science and Engineering
Thermoelastic calculations for CdTe grown by the vertical Bridgman method are presented. Finite element calculations are verified by some experimental data. Solidification interface velocity, charge temperature and stress distributions are computed for prescribed ampoule withdrawal rates and several ampoule support systems. The support systems include various materials and seed-wafer transition zone geometries. Crystal stress in excess of the critical resolved shear stress is used as the figure of merit to judge the performance of a particular system. Emphasis is focused on the transition region between the seed and wafer. A processing strategy is proposed and desirable support system characteristics are presented.
- Sponsoring Organization:
- National Aeronautics and Space Administration, Washington, DC (United States)
- OSTI ID:
- 500878
- Report Number(s):
- CONF-960848-; ISBN 0-8194-2197-9; TRN: IM9732%%106
- Resource Relation:
- Conference: Denver `96: 1. conference on space processing of materials, at SPIE International Society for Optical Engineering (SPIE) annual international symposium on optical science, engineering, and instrumentation, Denver, CO (United States), 4-9 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of Space processing of materials; Ramachandran, N. [ed.] [Universities Space Research Association, Huntsville, AL (United States)]; PB: 411 p.; Proceedings/SPIE, Volume 2809
- Country of Publication:
- United States
- Language:
- English
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