| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments II
|
| Presentation Title |
New Additive Manufacturing Route for Thermoelectric Materials Shaping and the Impact of the Geometry on the Conversion Energy: The Case of Silicides Compounds |
| Author(s) |
Yohann Thimont, Alexia Mortagne Coderch, Geoffroy Chevalier, Benjamin Duployer, Amélie Galodé, David Berthebaud, Franck Gascoin, Lionel Presmanes |
| On-Site Speaker (Planned) |
Yohann Thimont |
| Abstract Scope |
Thermoelectric materials allow to convert the heat waste into electricity. Additive manufacturing (AM) techniques using laser are a promising process in the aim to obtain low cost thermoelectric (TE) materials without machining step but reveals difficulty because of their low thermal conductivity leading to the presence of cracks, phases degradation and porosity. In the presented work, thermoelectric Silicides materials were elaborated by an alternative AM technique coupled to a specific sintering step. Materials show good density (>95%) without cracks, no phase degradation and keep shaping with similar transport properties than those obtained by the conventional route. The benefice of the shaping is also demonstrated and reports that shape including fins leads to higher output voltages with a gain of 16% for an applied temperature of only 75°C. This new route could be used for various TE compounds, should allowing the manufacturing of cheaper novel and more efficient TE devices. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Additive Manufacturing, Ceramics |