Abstract
Three-dimensional numerical simulations were conducted for the Top-Seeded Solution Growth (TSSG) process of silicon carbide (SiC) crystals. We investigated the influence of coils frequency and peak current, and an applied rotating magnetic field (RMF) on the melt flow developing in this system. Numerical simulation results show that the Marangoni flow in the melt becomes stronger at higher coils frequencies due to the decreasing coils-induced electromagnetic field strength. Results also show that the use of external RMF may improve supersaturation uniformity along the seed if it is properly adjusted with respect to the coils-induced electromagnetic field strength. Furthermore, it is predicted that the application of RMF and seed rotation in the same direction may enhance supersaturation below the seed.
Highlights
In our previous work [1], we performed a three-dimensional numerical simulation study for theTop-Seeded Solution Growth (TSSG) process of silicon carbide (SiC) crystals to examine the influence of melt flow on the growth process
In order to minimize this adverse effect of Marangoni convection, Wang et al [2] numerically considered the application of a strong static magnetic field and examined its effect under the same growth conditions in the same system
Our previous studies [1,2] have shown that the effect of seed rotation is significant when the effect of magnetic fields are taken into account, while it is limited in the absence of magnetic fields
Summary
In our previous work [1], we performed a three-dimensional numerical simulation study for the. The associated Marangoni convection component of the melt flow was dominant This strong convection makes supersaturation in the melt nonuniform and enhances growth rate variations. In order to minimize this adverse effect of Marangoni convection, Wang et al [2] numerically considered the application of a strong static magnetic field and examined its effect under the same growth conditions in the same system. In order to obtain a more general optimization scheme for the TSSG system of SiC, in the present study, we performed numerical simulations for the influence of coils frequency and current levels, and applied RMF on fluid flow and carbon transport in the melt of this system
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
