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Recycling of silicon scraps by SiC absorption with Al addition in multicrystalline silicon
Recycling of silicon scraps by SiC absorption with Al addition in multicrystalline silicon
- Source :
- Materials Science in Semiconductor Processing. 74:218-224
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
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.
- Subjects :
- Materials science
Silicon
Micro analysis
Mechanical Engineering
Metallurgy
chemistry.chemical_element
02 engineering and technology
Electron
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Chemical reaction
0104 chemical sciences
stomatognathic system
chemistry
Mechanics of Materials
General Materials Science
Ingot
0210 nano-technology
Absorption (electromagnetic radiation)
Carbon
Subjects
Details
- ISSN :
- 13698001
- Volume :
- 74
- Database :
- OpenAIRE
- Journal :
- Materials Science in Semiconductor Processing
- Accession number :
- edsair.doi...........ec7af667c5cb3693958582f8a75c752d
- Full Text :
- https://doi.org/10.1016/j.mssp.2017.10.047