This article presents the phenomena of melt flow, heat transfer, and solidification in Czochralski (CZ) melt growth processes of optical crystals, with emphasis on the effect of internal radiative heat transfer on the temperature distributions in oxide melt and crystal, melt convection, and melt-crystal interface shape. An integrated numerical model has been developed for simulating the physical phenomena in generic CZ furnaces, which includes the models for electromagnetic induction in crucible, surface exchange radiation in furnace, internal radiation in semi-transparent oxide melt and crystal, Marangoni convection in the melt, and solidification. Each developed model compares well with available analytical solutions. Numerical simulations were carried out for the prediction of fluid flow and heat transfer in furnaces. The simulation results show that the variation in optical properties of melt and crystal strongly impact their temperature distributions. It also affects the melt flow profile and intensity. The interface shape becomes more deeply convex toward the melt, as the optical thickness of the melt increases. However, the optical thickness of the crystal exhibits a minor impact on the interface shape. The results also show that the natural convection is dominated in the melt and the Marangoni flow enforces the natural convection.
Skip Nav Destination
ASME 2003 Heat Transfer Summer Conference
July 21–23, 2003
Las Vegas, Nevada, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-3695-9
PROCEEDINGS PAPER
An Integrated Model for Czochralski Melt Growth of Optical Crystals
S. P. Song,
S. P. Song
Washington State University, Pullman, WA
Search for other works by this author on:
B. Q. Li,
B. Q. Li
Washington State University, Pullman, WA
Search for other works by this author on:
K. G. Lynn
K. G. Lynn
Washington State University, Pullman, WA
Search for other works by this author on:
S. P. Song
Washington State University, Pullman, WA
B. Q. Li
Washington State University, Pullman, WA
K. G. Lynn
Washington State University, Pullman, WA
Paper No:
HT2003-47403, pp. 229-237; 9 pages
Published Online:
December 17, 2008
Citation
Song, SP, Li, BQ, & Lynn, KG. "An Integrated Model for Czochralski Melt Growth of Optical Crystals." Proceedings of the ASME 2003 Heat Transfer Summer Conference. Heat Transfer: Volume 3. Las Vegas, Nevada, USA. July 21–23, 2003. pp. 229-237. ASME. https://doi.org/10.1115/HT2003-47403
Download citation file:
5
Views
Related Proceedings Papers
Related Articles
Immersed Boundary Method for Radiative Heat Transfer Problems in Nongray Media With Complex Internal and External Boundaries
J. Heat Transfer (February,2017)
A Numerical Simulation of Combined Radiation and Natural Convection in a Differential Heated Cubic Cavity
J. Heat Transfer (February,2010)
Local and Global Simulations of Bridgman and Liquid-Encapsulated Czochralski Crystal Growth
J. Heat Transfer (November,1998)
Related Chapters
Radiation
Thermal Management of Microelectronic Equipment
Radiation
Thermal Management of Microelectronic Equipment, Second Edition
Numerical Simulation Research on a Fixed Bed Gasifier
International Conference on Information Technology and Management Engineering (ITME 2011)