|
|||||
|
|
Development of thermoelectric module based on dense Ca3Co4O9 and Zn0.98Al0.02O legs |
|
| Authors: | Paolo Mele Hiroyuki Kamei Hiroyuki Yasumune Kaname Matsumoto Koji Miyazaki |
| Affiliation: | 1. Institute for Sustainable Sciences and Development, Hiroshima University, Higashi Hiroshima, 739-8530, Japan 2. Department of Material Science and Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan 3. Fukuoka Industry, Science & Technology Foundation — LSI Design Industry, Fukuoka, 814-0001, Japan 4. Department of Mechanical Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan |
| Abstract: | Ca3Co4O9 (p-type) and Zn0.98Al0.02O (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). |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |