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 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.
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
J. H. Lee et al., "Effects of Homogenization Treatment on Thermoelectric Properties of Ba8Al16Si30", Materials Science Forum, Vols. 544-545, pp. 275-278, 2007