TY - JOUR
T1 - Thermoelectric properties of p-type (Bi2Te3)x(Sb2Te3)1-x prepared via bulk mechanical alloying and hot pressing
AU - Yang, J.
AU - Aizawa, T.
AU - Yamamoto, A.
AU - Ohta, T.
PY - 2000/9/14
Y1 - 2000/9/14
N2 - In the present paper, starting from elemental Bi, Sb and Te granules with 5 N purity and 1-5 mm diameter, p-type single phase (Bi2Te3)x(Sb2Te3)1-x (x=0.20, 0.225, 0.25, 0.275 and 0.30) thermoelectric materials with high densification (>99% theoretical density) were prepared via bulk mechanical alloying (BMA) and hot pressing (HP). Their thermoelectric properties, are less composition sensitive in the composition range of x≤0.25 and are comparable to that of those materials prepared by travelling heater method (THM); the figures of merit of (Bi2Te3)x(Sb2Te3)1-x are about 3×10-3/K. When x>0.25, the figures of merit of (Bi2Te3)x(Sb2Te3)1-x decreased rapidly with increasing x.
AB - In the present paper, starting from elemental Bi, Sb and Te granules with 5 N purity and 1-5 mm diameter, p-type single phase (Bi2Te3)x(Sb2Te3)1-x (x=0.20, 0.225, 0.25, 0.275 and 0.30) thermoelectric materials with high densification (>99% theoretical density) were prepared via bulk mechanical alloying (BMA) and hot pressing (HP). Their thermoelectric properties, are less composition sensitive in the composition range of x≤0.25 and are comparable to that of those materials prepared by travelling heater method (THM); the figures of merit of (Bi2Te3)x(Sb2Te3)1-x are about 3×10-3/K. When x>0.25, the figures of merit of (Bi2Te3)x(Sb2Te3)1-x decreased rapidly with increasing x.
UR - http://www.scopus.com/inward/record.url?scp=0034274430&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034274430&partnerID=8YFLogxK
U2 - 10.1016/S0925-8388(00)01063-X
DO - 10.1016/S0925-8388(00)01063-X
M3 - Article
AN - SCOPUS:0034274430
VL - 309
SP - 225
EP - 228
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -