- Investigation on the removal of phosphorus, aluminum, calcium from metallurgical grade silicon using electron beam melting
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- 论文类型： 期刊论文
- 发表时间： 2010-06-01
- 发表刊物： Gongneng Cailiao/Journal of Functional Materials
- 收录刊物： EI、PKU、ISTIC、Scopus
- 卷号： 41
- 期号： SUPPL. 1
- 页面范围： 144-147
- ISSN号： 10019731
- 摘要： Behavior of phosphorus, aluminum and calcium in metallurgical grade silicon has been investigated during electron beam melting with melting time modified. The results showed that the content of phosphorus, aluminum and calcium gradually decreased with time passing, and the lowest content of these impurities were 2.2 10-5wt% P, 8.5 10-5 wt% Al and 1.5 10-4 wt% Ca respectively. The removal rates of these elements were expressed by the first order equation. Rate constants for phosphorus, aluminum and calcium were 0.11, 0.12, 0.13 min-1 respectively.
