| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Chemical Effects of Ionizing Radiation on Molten Salt Systems |
| Author(s) |
Simon M. Pimblott, Ruchi Gakhar, Gregory P. Horne, Kazihiro Iwamatsu, Alejandro Ramos, Jay A. LaVerne, James F. Wishart |
| On-Site Speaker (Planned) |
Simon M. Pimblott |
| Abstract Scope |
Ionizing radiation in the molten salt reactor environment will drive chemical changes in the composition of the salt and induce additional pathways for corrosive degradation of reactor components. Although the products of radiolysis are largely expected to recombine in the high-temperature molten salts, even a small mechanistic leakage out of the recombination cycle will result in substantial formation of permanent products, such as halogen gas (F<sub>2</sub> or Cl<sub>2</sub> depending on the salt) or metal particles that may deposit on surfaces in the reactor circuit. Thus, it is important to understand the initial products of molten salt radiolysis and their reaction kinetics with solutes. MSR fuel and corroded infrastructure materials are full of potential scavengers for these initial products. State-of-the-art steady-state and pulse radiolysis techniques are being deployed to understand the radiation-induced chemistry of molten chloride salt systems and to develop a predictive multi-scale radiation chemical kinetics model. |
| Proceedings Inclusion? |
Planned: |