Enhancement of mechanical properties and thermoelectric performance of spark plasma sintered P-type Bismuth Telluride by powder surface oxide reduction

In the present investigation, key mechanical design parameters and the thermoelectric performance of powder ball milled spark plasma sintered P-typ e Bi0 · 4Sb1 · 6Te3 material was determined. In particular, the effect of the powder preparation technique on the powder surface oxide layer as well as both the mechanical and thermoelectric properties were determined. All measurements were performed on identically prepared sintered samples in both …