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DALIAN UNIVERSITY OF TECHNOLOGY Login 中文
姜大川

Associate Professor
Supervisor of Master's Candidates


Title : 中国产学研合作促进会常务理事
Gender:Male
Alma Mater:大连理工大学
Degree:Doctoral Degree
School/Department:材料科学与工程学院
Discipline:Materials Science
Business Address:新三束实验室209
Contact Information:0411-84709784
E-Mail:jdc@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

Electromagnetic separation of silicon carbide inclusions with aluminum penetration in silicon by imposition of supersonic frequency magnetic field

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Indexed by:期刊论文

Date of Publication:2017-03-01

Journal:JOURNAL OF CLEANER PRODUCTION

Included Journals:SCIE、EI

Volume:145

Page Number:45-49

ISSN No.:0959-6526

Key Words:Silicon carbide; Silicon; Electromagnetic; Solar energy material

Abstract:A large amount of silicon in the form of silicon scraps is wasted annually in photovoltaic industry because of the presence of silicon carbide inclusions. Silicon carbide inclusions Must be eliminated so that silicon scraps can be recycled. This study investigated the electromagnetic separation of silicori carbide inclusions in multicrystalline silicon by imposition of supersonic-frequency magnetic field. Silicon carbide particles tend to migrate to the ingot side and to the top and bottom of the central region of the ingot under increasing holding time. During separation process, the penetrating aluminum can react with silicon carbide and then dissolve some of the inclusions. In this work, the separation efficiency reaches up to 893% at a holding time of 45 min. This method is a potentially effective means of recycling silicon scraps. (C) 2017 Elsevier Ltd. All rights reserved.