Effects of Homogenization Treatment on Thermoelectric Properties of Ba8Al16Si30

Effects of Homogenization Treatment on Thermoelectric Properties of Ba8Al16Si30

The Arc melting technique was employed to synthesize the type I clathrate of Ba8Al16Si30 compound. Phase transformations during synthesis and homogenization treatment were investigated using X-ray diffraction (XRD) and thermal analysis (TG/DSC). Thermoelectric properties as functions of temperature...

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Veröffentlicht in:Materials science forum 2007-05, Vol.544-545, p.275-278
Hauptverfasser: Choe, Han Cheol, Lee, Jung Il, Kim, Young Ho, Kim, Il Ho, Ur, Soon Chul, Jang, Kyung Wook, Yang, Gon Seung, Lee, Joo Ho
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Sprache:eng
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Zusammenfassung:The Arc melting technique was employed to synthesize the type I clathrate of Ba8Al16Si30 compound. Phase transformations during synthesis and homogenization treatment were investigated using X-ray diffraction (XRD) and thermal analysis (TG/DSC). Thermoelectric properties as functions of temperature and homogenization treatment time were evaluated in this study. Maximum ZT was 0.14 at 590K for homogenized at 1173 K for 168hrs specimen and it is strongly expected to show higher value above 600K.
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.544-545.275