Modelling and experiments for the convecto-diffusive removal of impurities from the solidification front

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• 作者：J. Altenberend ; ^{jochen.altenberend@gmail.com} ; Y. Delannoy ; A. Nehari ; G. Chichignoud ; K. Zaidat
• 关键词：Solar grade silicon ; Segregation ; Silicon refining ; Turbulence ; Taylor-Couette flow
• 刊名：Journal of Crystal Growth
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：458
• 期：Complete
• 页码：80-86
• 全文大小：1020 K
• 卷排序：458

文摘

Turbulent flow was proposed to remove impurities from the solidification front. A theoretical model for mass transfer was developed for silicon. Stirring velocity should be about 105 higher than the solidification rate. Solidification experiments with turbulent couette flow confirmed theory.