Lee, Deuk-Hee Lee, Jae-Uk Jung, Sung-Jin Baek, Seung-Hyub Kim, Ju-Heon Kim, Dong-Ik Hyun, Dow-Bin Kim, Jin-Sang 2024-01-20T09:33:58Z 2024-01-20T09:33:58Z 2021-09-05 2014-06 0361-5235 https://pubs.kist.re.kr/handle/201004/126739 In this work, p-type 20%Bi2Te3-80%Sb2Te3 bulk thermoelectric (TE) materials were prepared by mechanical deformation (MD) of pre-melted ingot and by mechanical alloying (MA) of elemental Bi, Sb, and Te granules followed by cold-pressing. The dependence on annealing time of changes of microstructure and TE properties of the prepared samples, including Seebeck coefficient, electrical resistivity, thermal conductivity, and figure-of-merit, was investigated. For both samples, saturation of the Seebeck coefficient and electrical resistivity were observed after annealing for 1 h at 380A degrees C. It is suggested that energy stored in samples prepared by both MA and MD facilitated their recrystallization within short annealing times. The 20%Bi2Te3-80%Sb2Te3 sample prepared by MA followed by heat treatment had higher a Seebeck coefficient and electrical resistivity than specimens fabricated by MD. Maximum figures-of-merit of 3.00 x 10(-3)/K and 2.85 x 10(-3)/K were achieved for samples prepared by MA and MD, respectively. English SPRINGER WASTE HEAT BI2TE3 POWER Effect of Heat Treatment on the Thermoelectric Properties of Bismuth-Antimony-Telluride Prepared by Mechanical Deformation and Mechanical Alloying Article 10.1007/s11664-014-3037-1 1 JOURNAL OF ELECTRONIC MATERIALS, v.43, no.6, pp.2255 - 2261 JOURNAL OF ELECTRONIC MATERIALS 43 6 2255 2261 scie scopus 000336372400119 2-s2.0-84901916732 Engineering, Electrical & Electronic Materials Science, Multidisciplinary Physics, Applied Engineering Materials Science Physics Article WASTE HEAT BI2TE3 POWER Bismuth antimony telluride thermoelectric property mechanical alloying mechanical deformation powder metallurgy