| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications VIII
|
| Presentation Title |
Thermal Storage Effect on Thermoelectric Module |
| Author(s) |
Albert T. Wu, Chun-Hsien Wang, Yu-Chien Wang |
| On-Site Speaker (Planned) |
Albert T. Wu |
| Abstract Scope |
For Bi2Te3 and PbTe thermoelectric materials, the working temperature ranges are around 300 to 500 K and 400 to 800 K, respectively. Intermetallic compounds (IMC) would form at the interfaces between the thermoelectric materials and the electrodes when the modules are operating at elevated temperatures for long time. This study investigates the interfacial reaction and its corresponding thermoelectric properties as well as the reliability when the modules were aged at high temperature for different duration of times. For Bi2Te3, both Ni and Co are good diffusion barrier for enhancing the joint reliability. For PbTe, Co is required for inhibiting severe interaction with the electrodes. The growth of IMCs in different systems is examined by scanning electron microscope. The reliability of the joints is evaluated by shear test. The variation of thermoelectric properties with different aging conditions are also studied. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |