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Mechanism of B removal by solvent refining of silicon in Al-Si melt with Ti addition

文献类型：期刊论文

作者Ban, Boyuan1; Li, Jingwei1; Bai, Xiaolong1; He, Qiuxiang1; Chen, Jian1; Dai, Songyuan1,2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2016-07-05
卷号672期号:无页码:489-496
关键词Boron Refining Solidification Al-si-ti-b System
DOI10.1016/j.jallcom.2016.02.198
文献子类Article
英文摘要Solvent refining of Al-Si-B alloy samples with different amounts of Ti additions are carried out, which confirms a high B removal rate with excessive Ti addition. An apparent segregation coefficient is introduced to characterize the segregation between primary Si and Al-Si melt, which are determined to be 0.0471 with 575 ppma Ti addition at the cooling rate of 50 mK.s(-1). Temperature dependence of X-Ti(l) X-in Al-Si melt(B(l))2 (in Al-Si melt), individual Ti and B contents in the Al 29.3at.%Si melt from 1323 to 1123 K are calculated. It proves that TiB2 precipitates before the primary Si formation, which causes the decrease of B contents in the Al-Si melt and contributes to the high B removal rate. Moreover, BSE/SEM observation of TiB2 and (Al,Ti,Si) phase indicates a new competitive reaction mechanism in Al-Si-Ti-B system. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词METALLURGICAL-GRADE SILICON ; BORON REMOVAL ; MOLTEN SILICON ; RICH CORNER ; SOLIDIFICATION ; TITANIUM ; SYSTEM ; PURIFICATION
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000373464000068
资助机构"100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; 51404231) ; 51404231) ; 51404231) ; 51404231) ; "100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; "100-talent Program" of Chinese Academy of Sciences ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Natural Science Foundation of China(51474201 ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; National Basic Research Program of China(2011CBA00700) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; Anhui Provincial Natural Science Foundation(1508085QE81) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; China Postdoctoral Science Foundation(2014M561846) ; 51404231) ; 51404231) ; 51404231) ; 51404231)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22357]  
专题合肥物质科学研究院_应用技术研究所
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Peoples R China
2.North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
推荐引用方式
GB/T 7714		 Ban, Boyuan,Li, Jingwei,Bai, Xiaolong,et al. Mechanism of B removal by solvent refining of silicon in Al-Si melt with Ti addition[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,672(无):489-496.
APA Ban, Boyuan,Li, Jingwei,Bai, Xiaolong,He, Qiuxiang,Chen, Jian,&Dai, Songyuan.(2016).Mechanism of B removal by solvent refining of silicon in Al-Si melt with Ti addition.JOURNAL OF ALLOYS AND COMPOUNDS,672(无),489-496.
MLA Ban, Boyuan,et al."Mechanism of B removal by solvent refining of silicon in Al-Si melt with Ti addition".JOURNAL OF ALLOYS AND COMPOUNDS 672.无(2016):489-496.

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来源：合肥物质科学研究院

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