Abstract
The technology of solar grade silicon production intended for solar cells manufacturing consists in three successive stages: silica raw material ore enrichment, carbothermic reduction of silica to obtain metallurgical silicon grade (MG-Si) and purification of metallurgical silicon grade for obtaining the silicon solar grade (SoG-Si). Our work was focused on the preparation of the charge (SiO2 and C) to obtain the metallurgical silicon grade, which aims to study the silica thermo-mechanical properties as raw material for the carbothermic process. Various experiments at laboratory scale were developed on quartz samples as the explosion tests, heat tests, and mechanical tests in order to derive friability indices, thermal resistance and heat index. The results have allowed us to make a preliminary conclusion on silica intended for carbothermic process based on its thermo-mechanical characteristics as well as its better performance in the muffle furnace.
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Kefaifi, A., Sahraoui, T., Kheloufi, A., Berbar, Y., Drouiche, N. (2014). Thermomechanical Properties of Quartz Intended for Carbothermic Process for Silicon Production. In: Oral, A., Bahsi, Z., Ozer, M. (eds) International Congress on Energy Efficiency and Energy Related Materials (ENEFM2013). Springer Proceedings in Physics, vol 155. Springer, Cham. https://doi.org/10.1007/978-3-319-05521-3_23
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DOI: https://doi.org/10.1007/978-3-319-05521-3_23
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