Global Simulating the Detached Solidification Growth of CdZnTe Under Microgravity and Gravity

Global thermal and flow models of detached Bridgman method applied in CdZnTe growth are established and conducted in this paper. Under a microgravity condition, two kinds of boundary conditions on the top surface of the melt (nonslip wall and free surface) are adopted with the gap width ( e ) rangin...

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Bibliographic Details
Published in:Journal of superconductivity and novel magnetism 2010-08, Vol.23 (6), p.1205-1209
Main Authors: Peng, Lan, Zhang, Quan-Zhuang, Fan, Ju-Yan
Format: Article
Language:English
Subjects:
Cadmium zinc tellurides
Characterization and Evaluation of Materials
Condensed Matter Physics
Cross-disciplinary physics: materials science
rheology
Detaching
Exact sciences and technology
Gravitation
Growth from melts
zone melting and refining
Magnetic Materials
Magnetism
Materials science
Methods of crystal growth
physics of crystal growth
Microgravity
Original Paper
Physics
Physics and Astronomy
Simulation
Solidification
Strongly Correlated Systems
Superconductivity
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Summary:Global thermal and flow models of detached Bridgman method applied in CdZnTe growth are established and conducted in this paper. Under a microgravity condition, two kinds of boundary conditions on the top surface of the melt (nonslip wall and free surface) are adopted with the gap width ( e ) ranging from 0∼1 mm, respectively. Under a gravity condition, the nonslip boundary condition on the top surface is adopted with the same range of  e . The results show that under the microgravity condition, the flow is strengthened with the increase of e when the top surface is a nonslip wall. However, they show the opposite rule when the top surface is free surface. Under the gravity condition, the flow is strengthened with a larger crucible radius ( r o ). Velocity distributions on the meniscus show the similar rules in all conditions.
ISSN:1557-1939
1557-1947
DOI:10.1007/s10948-010-0645-8