Simultaneously removal of P and B from Si by Sr and Zr co-addition during Al–Si low-temperature solvent refining

作     者：Chen Chen Jingwei Li Qiuxia Zuo Boyuan Ban Jian Chen Chen Chen;Jingwei Li;Qiuxia Zuo;Boyuan Ban;Jian Chen

作者机构：Key Lab of Photovoltaic and Energy Conservation MaterialsInstitute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China University of Science and Technology of ChinaHefei 230026China School of Materials Science and EngineeringHefei University of TechnologyHefei 230009China State Key Laboratory of Mineral ProcessingBGRIMM Technology GroupBeijing 100160China State Key Laboratory of Complex Nonferrous Metal Resources Clean UtilizationKunming University of Science and TechnologyKunming 650504China Engineering Research Center of High Performance Copper Alloy Materials and ProcessingMinistry of EducationHefei University of TechnologyHefei 230009China Shandong Aluminum Vocational CollegeWeihai 264400China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2023年第30卷第2期

页      面：365-377页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51804294,51874272,52111540265) Anhui Provincial Natural Science Foundation(No.1808085ME121) the Key Laboratory of Photovoltaic and Energy Conservation Materials,Chinese Academy of Science(No.PECL2021QN003) Hefei Institutes of Physical Science,Chinese Academy of Sciences Director’s Fund(No.YZJJZX202018) International Clean Energy Talent Program by China Scholarship Council Open Foundation of State Key Laboratory of Mineral Processing(No.BGRIMM-KJSKL-2022-23) Open Foundation of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization(No.CNMRCUKF2205) 

主　　题：Al2Si2Sr phase zirconium boride phase phase directional solidification solvent refining 

摘      要：To remove the key impurity elements,P and B,from primary Si simultaneously,Sr and Zr co-addition to Al-Si alloy systems during solvent refining has been *** reacts with Al,Si,and P in the melt to form a P-containing Al_(2)Si_(2)Sr phase and Zr reacts with B to form a ZrB_(2) *** the Al-Si-Sr-Zr system,high removal fractions of P and B in the primary Si,with 84.8%-98.4%and 90.7%-96.7%,respectively,are achieved at the same time,*** best removal effect is obtained in the sample with the addition of Sr-32000+Zr-3000μg·kg^(-1),and the removal fractions of P and B in the purified Si reach 98.4%and 96.1%.Compared with the Sr/Zr single-addition,the removal effects of Sr and Zr co-addition on P and B do not show a significant downward trend,indicating that the nucleation and growth of the B/P-containing impurity phases are mutually ***,an evolution model is proposed to describe the nucleation and the growth stages of Sr/Zr-containing compound phases,which reveals the interaction between the impurity phases and the primary Si.