Abstract
Slurry containing SiC powder and oil is used to cut ingots with a wire in a solar cell wafering process. The slurry, which is generally recycled due to its high price, produces a residue known as sludge during the recycling process. The sludge is mainly composed of SiC, Si, and oil. This study proposed a method to remove Si and oil from sludge to obtain a high-purity SiC powder of approximately 98.5% in an economically feasible manner. Additionally, this study utilized the recycled SiC powder to develop a porous SiC ceramic heat sink with thermal conductivity of about 10W/mK and showed that the heat sink can be used as an efficient apparatus to release heat of electronics.
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Mekhilef, S., Saidur, R., and Safari, A., “A Review on Solar Energy Use in Industries,” Renewable and Sustainable Energy Reviews, Vol. 15, No. 4, pp. 1777–1790, 2011.
Möller, H. J., “Basic Mechanisms and Models of Multi-Wire Sawing,” Advanced Engineering Materials pp. 501–513, 2004.
Bidiville, A., Wasmer, K., Michler, J., Nasch, P., Van der Meer, M., and Ballif, C., “Mechanisms of Wafer Sawing and Impact on Wafer Properties,” Progress in Photovoltaics: Research and Applications, Vol. 18, No. 8, pp. 563–572, 2010.
Nasch, P. M. and Sumi, R., “Meeting Current and Future Wafering Challenges,” Solid State Technology, Vol. 52, No. 3, pp. 32–36, 2009.
Wang, H., Tan, Y., Li, J., Li, Y., and Dong, W., “Removal of Silicon Carbide from Kerf Loss Slurry by Al-Si Alloying Process,” Separation and Purification Technology, Vol. 89, pp. 91–93, 2012.
Lin, Y.-C., Wang, T.-Y., Lan, C.-W., and Tai, C. Y., “Recovery of Silicon Powder from Kerf Loss Slurry by Centrifugation,” Powder Technology, Vol. 200, No. 3, pp. 216–223, 2010.
Wang, T., Lin, Y., Tai, C., Sivakumar, R., Rai, D., and Lan, C., “A Novel Approach for Recycling of Kerf Loss Silicon from Cutting Slurry Waste for Solar Cell Applications,” Journal of Crystal Growth, Vol. 310, No. 15, pp. 3403–3406, 2008.
Joyce, D. B. and Schmid, F., “Recycling Fast-Sliced Silicon Swarf,” Proc. of the 24th EU PVSEC, 2009.
Wu, Y.-F. and Chen, Y.-M., “Separation of Silicon and Silicon Carbide using an Electrical Field,” Separation and Purification Technology, Vol. 68, No. 1, pp. 70–74, 2009.
Lin, Y.-C. and Tai, C. Y., “Recovery of Silicon Powder from Kerfs Loss Slurry using Phase-Transfer Separation Method,” Separation and Purification Technology, Vol. 74, No. 2, pp. 170–177, 2010.
Tsai, T.-H., “Silicon Sawing Waste Treatment by Electrophoresis and Gravitational Settling,” Journal of Hazardous Materials, Vol. 189, No. 1, pp. 526–530, 2011.
Yoko, A. and Oshima, Y., “Recovery of Silicon from Silicon Sludge using Supercritical Water,” Journal of Supercritical Fluids, Vol. 75, pp. 1–5, 2013.
Kwon, W. T., Kim, S. R., Kim, Y. H., Lee, Y. J., Jung, E. J., et al., “A Study on the Synthesis of SiC Powder from the Silicon Sludge of the Photovoltaic Industry,” Materials Science Forum, Vol. 724, pp. 49–52, 2012.
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Lee, YL., Jeong, ST. & Park, SJ. Study on manufacturing of recycled SiC powder from solar wafering sludge and its application. Int. J. of Precis. Eng. and Manuf.-Green Tech. 1, 299–304 (2014). https://doi.org/10.1007/s40684-014-0036-x
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DOI: https://doi.org/10.1007/s40684-014-0036-x