کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7177056 | 1466745 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Refining of metallurgical grade Si by solidification of Al-Si melt under electromagnetic stirring
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Aiming at developing a Si solidification purification process in the Al-Si alloy system, series of experiments on the effect of electromagnetic stirring on refining of metallurgical grade Si(MG-Si) were carried out. By the use of electromagnetic stirring, an increase of size and average mass of primary Si flakes with the increasing voltage of the electromagnet were obtained. Impurity elements formed intermetallic compounds with Al and Si, such as Al7Fe2Si(α phase) and Al5FeSi(β phase). An intermetallic compound type transformation with electromagnetic stirring was observed. The refined Si under the alternative electromagnetic field contains much lower B and P than those without the electromagnetic stirring. An apparent segregation coefficient was introduced to describe the segregation between solid Si and Al-Si melt. The apparent segregation coefficients of B and P are determined to be 0.37 and 0.17, respectively, when the voltage of the electromagnet is 210 V and cooling rate is 0.5 K minâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 222, August 2015, Pages 142-147
Journal: Journal of Materials Processing Technology - Volume 222, August 2015, Pages 142-147
نویسندگان
Boyuan Ban, Yanlei Li, Qiuxia Zuo, Taotao Zhang, Jian Chen, Songyuan Dai,