| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
A-63: Additive Manufacturing of TiNiSn Half-Heusler Thermoelectric Compound |
| Author(s) |
Seoung-Ho Lim, Pyuck-Pa Choi, Chanwon Jung |
| On-Site Speaker (Planned) |
Seoung-Ho Lim |
| Abstract Scope |
Additive manufacturing (AM) has advantages for fabricating complex and customized parts with a single work step. Thus, it is expected to be a new technique to enhance the productivity of thermoelectric devices having diverse shapes. However, studies on producing the half-Heulser thermoelectric compound with AM are not developed well due to the printability issue. Severe thermal distortion from low thermal conductivity is the main obstacle for AM applications. This study describes producing TiNiSn half-Heusler compound with laser-aided directed energy deposition and blending pure Sn powder with pre-alloyed powder until the TiNiSn stoichiometric balance was a strategy to overcome printability issues. The phase and microstructure of the AM-produced specimens were analyzed to discuss the effect of Sn blending. Finally, thermoelectric properties were measured and discussed. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Energy Conversion and Storage, Characterization |