location: Current position: Home >> Scientific Research >> Paper Publications

电子束熔炼去除冶金级硅中磷、铝、钙的研究

Hits:

Indexed by:期刊论文

Date of Publication:2010-06-20

Journal:功能材料

Included Journals:PKU、ISTIC

Volume:41

Issue:z1

Page Number:144-147

ISSN No.:1001-9731

Key Words:硅;电子束熔炼;除杂;挥发速率

Abstract:采用电子束熔炼方法提纯了冶金级硅材料.实验结果表明随熔炼时间延长,硅中挥发性杂质元素P、Al、Ca的含量逐渐降低.熔炼40min后,硅中P含量可以降至2.2×10-5%(质量分数);Al、Ca的最低含量为8.5×10-5%和1.5×10-4%(质量分数).P、Al、Ca的挥发去除为一阶反应过程,反应速率常数分别为0.11、0.12和0.13min-1.

Pre One:电子束熔炼冶金级硅中杂质钙的蒸发行为

Next One:Investigation on the removal of phosphorus, aluminum, calcium from metallurgical grade silicon using electron beam melting