Effects of Homogenization Treatment on Thermoelectric Properties of Ba8Al16Si30


Article Preview

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.



Materials Science Forum (Volumes 544-545)

Edited by:

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

Online since:

May 2007




[1] G. Slack, in: CRC Handbook of Thermoelectrics, edited by D.M. Rove, CRC Press, Boca Raton, (1995), p.407.

[2] N.P. Blake, D. Bryan, S. Lattumer, L. Mollnitz, G.D. Stucky and H. Metiu: J. Chem. Phys., Vol 114, (2001), p.10063.

[3] T.C.W. Mak, G.D. Zhou: Crystallography in Modern Chemistry (J. Wiley & Sons, Inc., New York, 1992).

[4] B. Eisenmann, H. Schäfer, R. Zagler: J. Less-Common Met. Vol. 118 (1986), p.43.

[5] G. Cordier, P. Woll: J. Less-Common Met. Vol. 169 (1991), p.291.

[6] D. Nataraj, J. Nagao, M. Ferhat and T. Ebinuma: Proc. 21st ICT (2002), p.72.

[7] D. Nataraj and J. Nagao: J. Solid State Chemistry, Vol. 177, (2004), p. (1905).

[8] S. Latturner, X. Bu, N. Blake, H. Metiu and G. Stucky: J. Solid State Chemistry Vol. 151, (2000), p.61.

DOI: https://doi.org/10.1006/jssc.2000.8622

[9] J. Martin, S. Erickson and G. S. Nolas: Proc. 24th Intl. Conf. Thermoelectrics (2005), p.223.

[10] P. Rogl: Proc. 24th Intl. Conf. Thermoelectrics (2005), p.440.