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Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification | |
Li, Yanlei1; Chen, Jian2 | |
2020-04-01 | |
发表期刊 | METALS AND MATERIALS INTERNATIONAL |
ISSN | 1598-9623 |
通讯作者 | Li, Yanlei(ldymyy@163.com) |
摘要 | Al-Si solvent refining is a promising process for silicon purification, and the key impurity elements are boron and phosphorus. Thermodynamic calculation and experiments in particular temperatures show that boron and phosphorus segregation coefficients in Al-Si melt decrease with decreasing temperature, and it is not verified in traditional solidification. In order to character boron and phosphorus removal in Al-Si solidification over a temperature range, high purity hypereutectic Al-Si melts were solidified at relatively low cooling rate. It is found that boron and phosphorus removal rates increase with decreasing temperature. The tread that the boron and phosphorus segregation coefficients in the Al-Si melt decease with decreasing temperature is confirmed in solidification over a temperature range. In addition, aluminum content in purified silicon is close to the maximum solid solubility of aluminum in silicon. Graphic Removal rates of boron and phosphorus after solidification of high purity hypereutectic Al-Si melts |
关键词 | Silicon purification Al-Si melt Impurity removal Boron Phosphorus |
DOI | 10.1007/s12540-019-00347-7 |
关键词[WOS] | METALLURGICAL-GRADE SILICON ; SOLID SOLUBILITIES ; IMPURITY GETTER ; PURIFICATION ; EVAPORATION ; SEPARATION ; IRON |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000521842500010 |
出版者 | KOREAN INST METALS MATERIALS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/103640 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Li, Yanlei |
作者单位 | 1.Xinyang Normal Univ, Energy Saving Bldg Mat Collaborat Innovat Ctr Hen, Xinyang 464000, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Hefei 230031, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yanlei,Chen, Jian. Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification[J]. METALS AND MATERIALS INTERNATIONAL,2020,26. |
APA | Li, Yanlei,&Chen, Jian.(2020).Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification.METALS AND MATERIALS INTERNATIONAL,26. |
MLA | Li, Yanlei,et al."Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification".METALS AND MATERIALS INTERNATIONAL 26(2020). |
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