Possibility of Complete Collecting Eutectic Si and Primary Si as Purified Si During Al-Si Solvent Refining with Zr Additions

doi:10.1007/s12633-022-01851-z

HFCAS OpenIR

	Possibility of Complete Collecting Eutectic Si and Primary Si as Purified Si During Al-Si Solvent Refining with Zr Additions
	Chen, Chen 1,2; Li, Jingwei3 ; Chen, Jian1 ; Ban, Boyuan1
	2022-04-01
发表期刊	SILICON
ISSN	1876-990X
通讯作者	Ban, Boyuan(banboyuan@rntek.cas.cn)
摘要	The possibility of complete collecting eutectic Si and primary Si as purified Si during Al-Si solvent refining with Zr additions has been studied. From the ICP results, the B content in the eutectic Si is significantly higher than that in the primary Si with the low Zr addition (Zr addition <= 330 ppmw, B-max=233 ppmw). With the excessive Zr addition, the B element in the melt is more and more distributed in the ZrB2 phase (over 95% with 3000 ppmw Zr addition), which causes the B content of primary Si and eutectic Si remained low level. Through the consistency of the estimated X-ZrB2 in this work with the theoretical value, the mechanism of the high-efficiency B removal is clearly revealed. The EDS analysis shows that the ZrSi2 phase is trapped and mixed in the collected Si crystal, which caused the Zr content in the Si crystal increasing abnormally, and the subsequent HCl + HF leaching process can effectively eliminate the trapped and mixed ZrSi2 phase in the Si phase. After leaching treatment, the B and Zr contents of eutectic Si and primary Si can reach the same level. This suggests that all Si crystals in Al-Si alloy can be used as purified Si, which greatly increases the recovery ratio of Si.
关键词	ZrB2 and ZrSi2 phases Primary Si Eutectic Si Leaching Refining
DOI	10.1007/s12633-022-01851-z
关键词[WOS]	METALLURGICAL-GRADE SILICON ; DIRECTIONAL SOLIDIFICATION ; CARBIDE FORMATION ; CRYSTAL-GROWTH ; BORON REMOVAL ; B REMOVAL ; PURIFICATION ; ALLOY ; MELT ; SEPARATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51804294] ; National Natural Science Foundation of China[51874272] ; National Natural Science Foundation of China[52111540265] ; Anhui Provincial Natural Science Foundation[1808085ME121] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Science[PECL2021QN003] ; Hefei Institutes of Physical Science, Chinese Academy of Sciences Director's Fund[YZJJZX202018] ; International Clean Energy Talent Program by China Scholarship Council
项目资助者	National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Science ; Hefei Institutes of Physical Science, Chinese Academy of Sciences Director's Fund ; International Clean Energy Talent Program by China Scholarship Council
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000777195200001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/128664
专题	中国科学院合肥物质科学研究院
通讯作者	Ban, Boyuan
作者单位	1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Chen, Chen,Li, Jingwei,Chen, Jian,et al. Possibility of Complete Collecting Eutectic Si and Primary Si as Purified Si During Al-Si Solvent Refining with Zr Additions[J]. SILICON,2022.
APA	Chen, Chen,Li, Jingwei,Chen, Jian,&Ban, Boyuan.(2022).Possibility of Complete Collecting Eutectic Si and Primary Si as Purified Si During Al-Si Solvent Refining with Zr Additions.SILICON.
MLA	Chen, Chen,et al."Possibility of Complete Collecting Eutectic Si and Primary Si as Purified Si During Al-Si Solvent Refining with Zr Additions".SILICON (2022).