Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 390, Issue 1-2, Pages 208-211Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2004.07.056
Keywords
Bi-Sb-Te; thermoelectric performance; spark plasma sintering
Ask authors/readers for more resources
In the present study, p-type (Bi,Sb)(2)Te-3 thermoelectric materials have been fabricated through the spark plasma sintering (SPS) method by using powders with various particle sizes. Electrical conductivity (sigma), Seebeck coefficient (alpha), and thermal conductivity (kappa) were evaluated in the temperature range of 300-500 K. The effect of annealing of the sintered samples on thermoelectric properties was also investigated. The maximum figure of merit ZT (ZT = alpha(2)sigmaT/kappa) of the sintered samples in the direction perpendicular to the pressing direction (with c-axis preferred orientation) was 1.15 at about 350 K, corresponding to be about 115% of that of the zone-melted ingot with the same composition in the same crystallographic orientation; while the bending strength was highly improved from about 10 to 80 MPa. (C) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available