Proposition of a New Valid Utilization for Shirasu Volcanic Ash Using Renewable Energy

Abstract:

SiC was prepared from Shirasu volcanic ash using solar furnace. The solar furnace is composed by two parts; Fresnel lens and reacting furnace. Fresnel lens is used to concentrate sunlight onto the reacting furnace where the sample was put on. The sample was made from the mixture of SiO₂ formed using Shirasu volcanic ash and graphite, and placed in the carbon crucible inside the reacting furnace. By using light of sun concentrated with Fresnel lens, the sample was irradiated for 15 minutes and the furnace was left until it cooled down to room temperature. Both irradiated and cooling processes were done under Ar atmosphere. After the experiment, the sample was evaluated by XRD and Raman spectroscopy and the result indicated that β-SiC was formed.

• Periodical: Advanced Materials Research (Volume 894)
• Pages: 149-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.894.149
• Online since: February 2014
• Authors: Kosei Sato*, Kouji Maeda, Kensuke Nishioka
• Keywords: Renewable Energy, Shirasu Volcanic Ash, Silicon Carbide (SiC), Solar Furnace

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