20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Synthesis Thermoelectric Material Mg${}_2$Si by Quartz Tube Vacuum Furnace from Starting Mg Powder and SiO${}_2$ Rice Husk

21 May 2015, 13:00
3h 30m
Board: MNA-68
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Mr Phonlakit Khowjalern (Department of Physics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Rd., Ladgrabang, Bangkok 10520, Thailand)

Description

Magnesium silicide (Mg${}_2$Si) is a promising for thermoelectric materials due to display a high performance for thermoelectric power generation with ZT about 0.9 at operation temperature 600 to 800 K. This work, Mg${}_2$Si compound was prepared from starting powder of SiO${}_2$, which was attracted from rice husk, and Mg powder. The sintering process was performed in quartz tube vacuum at temperature 650 ${}^{\circ}$C with argon atmosphere. Then MgO composition was demolished by chemical process. XRD patterns showed the pure phased of Mg${}_2$Si. Thermoelectric characterization and properties will be reported.

Primary author

Mr Phonlakit Khowjalern (Department of Physics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Rd., Ladgrabang, Bangkok 10520, Thailand)

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