TY - JOUR
T1 - Global analysis of heat transfer in CZ crystal growth of oxide taking into account three-dimensional unsteady melt convection
T2 - Effect of meniscus shape
AU - Jing, C. J.
AU - Ihara, S.
AU - Sugioka, K. I.
AU - Tsukada, T.
AU - Kobayashi, M.
N1 - Funding Information:
The authors would like to express their sincere thanks to the staff member of the Center for Computational Materials Science of the Institute for Materials Research, Tohoku University, for their continuous support in the use of the SR8000 supercomputing facilities. The present work was partly supported by Casio Science Promotion Fundation. In addition, project 50576079 partly supported by NSFC.
PY - 2008/1/4
Y1 - 2008/1/4
N2 - A global model of heat transfer analysis for the Czochralski crystal growth of oxides, in which a three-dimensional unsteady melt flow was taken into account, was developed in our recent study. In the model, however, the focal point was the methodology of formulating the model by coupling a conventional global model of heat transfer, which is based on a pseudosteady axisymmetric assumption, with a model of a three-dimensional, unsteady melt flow via two interface models. Therefore, for simplicity, the shape of the melt free surface was assumed to be flat. In this study, the global model was further developed by considering the meniscus of the melt free surface. It was found that the meniscus of the melt free surface caused the melt flow to be more unstable and shifted the critical Reynolds number at which the melt/crystal interface inversion occurs toward a much lower value.
AB - A global model of heat transfer analysis for the Czochralski crystal growth of oxides, in which a three-dimensional unsteady melt flow was taken into account, was developed in our recent study. In the model, however, the focal point was the methodology of formulating the model by coupling a conventional global model of heat transfer, which is based on a pseudosteady axisymmetric assumption, with a model of a three-dimensional, unsteady melt flow via two interface models. Therefore, for simplicity, the shape of the melt free surface was assumed to be flat. In this study, the global model was further developed by considering the meniscus of the melt free surface. It was found that the meniscus of the melt free surface caused the melt flow to be more unstable and shifted the critical Reynolds number at which the melt/crystal interface inversion occurs toward a much lower value.
KW - A1. Computer simulation
KW - A1. Convection
KW - A1. Heat Transfer
KW - A1. Interfaces
KW - A2. Czochralski method
KW - B1. Oxides
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U2 - 10.1016/j.jcrysgro.2007.10.001
DO - 10.1016/j.jcrysgro.2007.10.001
M3 - Article
AN - SCOPUS:36549038991
SN - 0022-0248
VL - 310
SP - 204
EP - 213
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1
ER -