Effect of the pulling, crystal and crucible rotation rate on the thermal stress and the melt–crystal interface in the Czochralski growth of germanium crystals

Abstract

The effect of the pulling rate on the melt–crystal interface shape and melt streamline is investigated.

Modelling and Control of Thermal Stress in TSLAG (Tb3Sc1.95Lu0.05Al3O12) Magneto-Optical Crystals Grown by Czochralski Method

“…Therefore, it can be concluded that under stable melt flow structure conditions, the concavity of c-m interface increases continuously in the TSLAG crystal growth process. Moreover, for the same crystal height, a higher crystal rotation speed leads to a greater concavity of the c-m interface, which has been reported in studies on Cz crystal growth [17,18].…”

Computational Analysis of Radiative Heat Transfer in Czochralski Furnace and 3D Anisotropic Thermal Stress in Li2MoO4 Bulk Crystal

“…The temperature and flow fields in the elements of a growth furnace result from the coupling of several heat transfer modes, namely, conduction in all furnace parts, convection in the melt and growth atmosphere, and radiation inside the semitransparent crystal and between the furnace elements. [16][17][18][19][20][21] Radiative heat transfer plays a key role in the growth process, and it acts directly on the temperature gradients and thermal stress in the crystal influencing then its quality.…”