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Sanaz Hadidchi
Sanaz Hadidchi

Public Documents 1
Numerical study of the effects of crucible movement on the Ge growth process in an in...
Sanaz Hadidchi
Mohammad Hossein Tavakoli

Sanaz Hadidchi

and 1 more

November 15, 2024
The present study examines the impact of fixed versus moving graphite crucibles on the germanium crystal growth process in an inductive CZ furnace. In particular, the aim is to perform a computational study of the impacts on the temperature and flow characteristics within the system, the form of the interface between crystal and melt, and stress and dislocation density in the ingot. Results show that as the crucible moves upward during the crystal formation phase, while a portion of the molten material solidifies where its open surface contacts the crucible wall, the solidified portion at the bottem of the crucible is effectively eliminated. Additionally, the upward movement of the crucible results in a more convex crystal-melt interface with greater penetration into the melt than when a stationary crucible is used. Furthermore, the crucible's relative motion alters the stress distribution and dislocation density.

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