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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

Recycling of silicon scraps by SiC absorption with Al addition in multicrystalline silicon

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Indexed by:期刊论文

Date of Publication:2018-02-01

Journal:MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING

Included Journals:SCIE、EI

Volume:74

Page Number:218-224

ISSN No.:1369-8001

Key Words:Silicon carbide; Silicon; Solar energy materials; Metallurgy

Abstract:A new method for SiC elimination from multicrystalline silicon with Al addition by using the chemical reaction between Al and SiC is conducted in this study. Inclusion-free region is obtained when Al addition content increases to 5.4% and 7.9%. SiC particles tend to pile up around Al during the process and precipitate at ingot bottom. Furthermore, Al-Si alloying occurs at the inclusion-free region. The electron probe micro analysis mapping illustrates the existence of carbon in the precipitated Al which indicates the occurrence of chemical reaction between SiC particles and Al during the process. The results can be an effective way to eliminate SiC for silicon scraps recycling.