Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification

doi:10.1007/s12540-019-00347-7

	Boron and Phosphorus Removal During High Purity Hypereutectic Al-Si Solidification
	Li, Yanlei 2; Chen, Jian 1
刊名	METALS AND MATERIALS INTERNATIONAL
	2020-04-01
卷号	26
关键词	Silicon purification Al-Si melt Impurity removal Boron Phosphorus
ISSN号	1598-9623
DOI	10.1007/s12540-019-00347-7
通讯作者	Li, Yanlei(ldymyy@163.com)
英文摘要	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
WOS关键词	METALLURGICAL-GRADE SILICON ; SOLID SOLUBILITIES ; IMPURITY GETTER ; PURIFICATION ; EVAPORATION ; SEPARATION ; IRON
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	KOREAN INST METALS MATERIALS
WOS记录号	WOS:000521842500010
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103639]
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.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Hefei 230031, Peoples R China 2.Xinyang Normal Univ, Energy Saving Bldg Mat Collaborat Innovat Ctr Hen, Xinyang 464000, 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).