TY - JOUR
T1 - Development of thermoelectric module based on dense Ca3Co 4O9 and Zn0.98Al0.02O legs
AU - Mele, Paolo
AU - Kamei, Hiroyuki
AU - Yasumune, Hiroyuki
AU - Matsumoto, Kaname
AU - Miyazaki, Koji
PY - 2014/3
Y1 - 2014/3
N2 - Ca3Co4O9 (p-type) and Zn 0.98Al0.02O (n-type) pellets were prepared by conventional sintering (CS) and Spark Plasma sintering (SPS) starting from the oxides. The best p-type sample was SPS Ca3Co4O9 obtained from pre-sintered pellets, with electrical conductivity σ = 144 S/cm and Seebeck coefficient S = 172 μV/K at 800 °C, while thermal conductivity κ = 2.00 W/m×K and figure of merit ZT = 0.23. The best n-type sample was CS Zn0.98Al0.02O showing σ = 83 S/cm and S = -268 μV/K at 800 °C, while = 5.03 W/m×K and ZT = 0.127. The output power of a module based on SPS Ca3Co4O9 and CS Zn0.98Al0.02O legs was 2.26 mW (with T = 500 °C, ΔT = 248 °C).
AB - Ca3Co4O9 (p-type) and Zn 0.98Al0.02O (n-type) pellets were prepared by conventional sintering (CS) and Spark Plasma sintering (SPS) starting from the oxides. The best p-type sample was SPS Ca3Co4O9 obtained from pre-sintered pellets, with electrical conductivity σ = 144 S/cm and Seebeck coefficient S = 172 μV/K at 800 °C, while thermal conductivity κ = 2.00 W/m×K and figure of merit ZT = 0.23. The best n-type sample was CS Zn0.98Al0.02O showing σ = 83 S/cm and S = -268 μV/K at 800 °C, while = 5.03 W/m×K and ZT = 0.127. The output power of a module based on SPS Ca3Co4O9 and CS Zn0.98Al0.02O legs was 2.26 mW (with T = 500 °C, ΔT = 248 °C).
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U2 - 10.1007/s12540-014-2024-7
DO - 10.1007/s12540-014-2024-7
M3 - Article
AN - SCOPUS:84896940375
SN - 1598-9623
VL - 20
SP - 389
EP - 397
JO - Metals and Materials International
JF - Metals and Materials International
IS - 2
ER -