T. Tokiai et al., MICROSTRUCTURE AND THERMOELECTRIC PROPERT IES OF P-TYPE BISMUTH TELLURIDE PREPARED BY HIPPING OF METAL-POWDER MIXTURE, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 103(8), 1995, pp. 797-803
High figure of merit, 2.6x10(-3)K(-1) at 25 degrees C, was achieved in
p-type bismuth telluride ceramics fabricated by hot-isostatically pre
ssing the pulverized metallic powder mixtures, Pulverization behavior
of the metallic powders obeyed the Rittinger's low and the resultant t
hermoelectric properties depended on the pulverizing conditions, Disso
lution-condensation mechanism for densification gave rise to the isotr
opic microstructure and hence isotropic thermoeletric characteristics.