Effect of Ti addition on B removal during silicon refining in Al-30%Si alloy directional solidification
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- 作者：Xiaolong Baia ; b ; Boyuan Banb ; Jingwei Lib ; Zhiqiang Fua ; Zhijian Penga ; Chengbiao Wanga ; Jian Chenb ; jchen@ipp.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：B removal ; Ti addition ; Al-Si alloy ; Directional solidification ; Apparent segregation coefficient
- 刊名：Separation and Purification Technology
- 出版年：2017
- 出版时间：1 March 2017
- 年：2017
- 卷：174
- 期：Complete
- 页码：345-351
- 全文大小：2136 K
文摘
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Al-30 wt.% Si alloys were cast by directional solidification.
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The effect of Ti addition on B removal during silicon refining is studied.
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The B content in the refined primary Si is reduced to less than 1 ppmw.
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Apparent segregation coefficients of B during the process are calculated.
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The mechanism of high B removal rate during the purification process is revealed.