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Meeting 7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
Symposium ICME 2023
Presentation Title Coupled Thermal-solidification Process Simulation of Sapphire Growth
Author(s) Raluca Andreea Trasca, Werner E▀l, Georg Reiss, Sina Lohrasbi, Peter Raninger
On-Site Speaker (Planned) Peter Raninger
Abstract Scope In this work coupled thermal-solidification simulations of sapphire growth in single-boule furnaces with Heat Exchange Method (HEM) are presented. The heat transfer in the furnace is modelled via ANSYS Fluent« by considering: 1) heat conduction and radiation in furnace, 2) heat conduction, laminar convection and radiation in sapphire melt, and 3) heat conduction and internal radiation in sapphire crystal. The crystal growth is modelled by the enthalpy-porosity approach. The physical models used in simulations are validated with measurement data from a real furnace, which capture the crystal-melt interface position during the technological growth process. A simplified furnace geometry is considered to study the effect of different side and top heater powers on the crystal-melt interface during the growth process. A main focus is put on the possibilities for upscaling the sapphire crucible dimensions (height and width) to make the process more efficient and to be able to produce larger wafers.
Proceedings Inclusion? Planned: Other
Keywords Aluminum,


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