| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Molten Chloride Salt Corrosion of Ultra-high Temperature Ceramics |
| Author(s) |
Brian Carpman, James Kelly, Stephen Raiman |
| On-Site Speaker (Planned) |
Brian Carpman |
| Abstract Scope |
Molten chloride salts have been proposed as heat transfer fluids for high temperature systems such as nuclear reactors, concentrated solar power, and thermal energy storage, because of their high temperature stability and heat transfer properties. However, these chloride salts present new challenges due to their corrosivity. For this reason, ultrahigh temperature ceramics (UHTCs) are viewed as a potential salt-facing material. Our goal was to test using additively manufactured UHTCs in a heat exchanger between molten chloride salt and supercritical CO₂. Tungsten carbide, molybdenum carbide, titanium carbide, silicon carbide, titanium diboride, and Haynes 230 were exposed to purified and unpurified KCl-MgCl₂ at 800℃. Samples were then characterized with SEM, EDS, and optical microscopy. Additionally ceramic blends intended to improve CO₂ oxidation resistance and sinterability were tested. This talk will discuss corrosion resistance UHTCs in molten chloride salts. Future work with additively manufactured UHTCs also be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, High-Temperature Materials, |