T. Tokiai et al., RELATIONSHIP BETWEEN THERMOELECTRIC PROPE RTIES AND MICROSTRUCTURE ONP-TYPE (BI2TE3)(0.25)(SB2TE3)(0.75) SYSTEM USING MILLED POWDER, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 103(11), 1995, pp. 1182-1187
We have developed p-type bismuth telluride of (Bi2Te3)(0.25)(Sb2Te3)(0
.75) system with modified PIES method, which shows the figure of merit
and compressive strength of 1.6x10(-3)/K(25 degrees C), and 9.8 MPa,
respectively. Thermoelectric properties showed no anisotropy of electr
ical transport phenomena because the microstructure had no orientation
of the grain growth, The improved compressive strength was presumably
due to small grain sizes. The milling mechanism obeyed Kick's law.