| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
In-situ monitoring of molten chloride salt chemistry and corrosion using microelectrode |
| Author(s) |
Changkyu Kim, Adrien Couet |
| On-Site Speaker (Planned) |
Changkyu Kim |
| Abstract Scope |
This study investigates microelectrodes for in-situ monitoring of molten chloride salt chemistry and corrosion, critical for advancing nuclear reactors and ensuring stability. Glass-coated 25 µm diameter tungsten microwires are used to monitor redox reactions and diffusion coefficients of Eu3+ or Ni2+ ions in 500°C LiCl-KCl eutectic salt via cyclic voltammetry. Validation against conventional macro-electrodes confirms their effectiveness in high-temperature environments. Their potential as high temperature scanning electrochemical microscopy (HT-SECM) tools is explored for Ni-Cr alloy corrosion analysis.
These findings deepen understanding of molten salt behavior and grain-level corrosion mechanisms, vital for optimizing next-generation nuclear reactors. Microelectrodes offer high spatial resolution and fast response times, enabling precise characterization of electrochemical processes at specific microstructural sites on corroding surfaces. This capability enhances our knowledge of molten salt chemistry and improves corrosion mitigation strategies, ensuring the long-term stability and reliability of advanced reactor technologies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, High-Temperature Materials, Other |