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)

Presentation materials

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