| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications XI
|
| Presentation Title |
A Tentative of an Initial Materials Specification of the Process Influence on Sulfide-based Ceramics for Enhancing their Thermoelectric Performances |
| Author(s) |
Cedric Bourges, Guillaume Lambard, Toshiyuki Nishimura, Satoshi Ishii, Takao Mori |
| On-Site Speaker (Planned) |
Cedric Bourges |
| Abstract Scope |
The influence of the sulfur off-stoichiometry induced by the process is not well investigated and mostly considered as a ‘negative’ feature that harms the image of sulfide-based ceramics and restricts their applications. In my presentation, I will introduce the initial material specification, that we developed, using the example of a Cu-based sulfide as key materials for the understanding of the process influence on metal-sulfide ceramics. I will evidence that depending to the synthesis and / or densification methods it is possible to control a certain degree of order / disorder in strategic metal-sulfides ceramics for tuning their TE properties. The strong relationship between the process employed and the sulfur off-stoichiometry will be discussed together with its influences on the resulting physico-chemical and electrical/thermal transport properties. A tentative of rationalization of the relationship and mechanism by machine learning will be introduced. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Energy Conversion and Storage, |