Numerical modelling of surface waves generated by low frequency electromagnetic field for silicon refinement process

8th International Scientific Colloquium on Modelling for Materials Processing

Gea, V.^1 ; Venels, J.^1 ; Zaeris, .^1 ; Pavlovs, S.^1

University of Latvia, Riga

LV-1002, Latvia^1

关键词: Free-surface dynamics;    Low frequency electromagnetic field;    Metallurgical routes;    Refinement process;    Silicon melts;    So-g si;    Two dimensional numerical models;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/355/1/012020/pdf
DOI  :  10.1088/1757-899X/355/1/012020

来源: IOP

【 摘 要 】

One of the most perspective methods to produce SoG-Si is refinement via metallurgical route. The most critical part of this route is refinement from boron and phosphorus, therefore, approach under development will address this problem. An approach of creating surface waves on silicon melt's surface is proposed in order to enlarge its area and accelerate removal of boron via chemical reactions and evaporation of phosphorus. A two dimensional numerical model is created which include coupling of electromagnetic and fluid dynamic simulations with free surface dynamics. First results show behaviour similar to experimental results from literature.