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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：研究生院常务副院长
其他任职：辽宁省凝固控制与数字化制备技术重点实验室主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程
办公地点：研究生院；材料科学与工程学院
联系方式：tmwang@dlut.edu.cn
电子邮箱：tmwang@dlut.edu.cn
An efficient method to purify metallurgical grade Si by electromagnetic semi-continuous casting of Al-30Si melt
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论文类型：期刊论文
发表时间：2016-12-15
发表刊物：MATERIALS LETTERS
收录刊物：SCIE、EI、Scopus
卷号：185
页面范围：59-62
ISSN号：0167-577X
关键字：Solidification; Segregation; Purification; Rotating magnetic field; Semi-continuous casting
摘要：This paper reported a very simple and energy-saving method to refine metallurgical grade Si (MG-Si) for use in solar cell materials. Refined Si was prepared by using a rotating magnetic field (RMF) to separate the primary Si continuously from hypereutectic Al-30Si melt during semi-continuous casting. Purification testing of the refined Si indicates that the contents of almost all metallic elements can be reduced to the solar grade levels (<= 0.1 ppmw) by electromagnetic separation with solidification refining just twice, while those of the non-metallic impurities B and P can be effectively controlled within the acceptable levels (B < 0.3 ppmw, P < 0.5 ppmw) by solidification refining for three times. (C) 2016 Elsevier B.V. All rights reserved.