About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Synergistic Irradiation, Corrosion, and Microstructural Evolution in Nuclear Materials
|
Presentation Title |
Quantification of the Oxidizing Effects of Neutron Activation Reactions in FLiBe |
Author(s) |
Lorenzo Vergari, Ryan Hayes, Massimiliano Fratoni, Raluca Scarlat |
On-Site Speaker (Planned) |
Lorenzo Vergari |
Abstract Scope |
Fluoride salts used in solid- and liquid-fueled molten salt reactors and in the blanket of fusion reactors are subjected to neutron irradiation. Activation of the salt constituents leads to the production of several activation products, most notably hydrogen (specifically tritium) and oxygen isotopes. Quantifying production rates of tritium and other hydrogen isotopes is important for the design of tritium management systems. Furthermore, each activation reaction leads to changes in the chemical composition and in the redox potential of the salt and can be a driver for the transfer of electrons from structural materials to component of the melts, thereby increasing corrosion rates as compared to the unirradiated case. In this talk, the production rates of the main activation products of 2LiF-BeF2 (FLiBe) in Fluoride-Salt-Cooled-High-Temperature-Reactors and fusion blankets are estimated and their impact on corrosion rates is discussed, making reference to previous experiments on irradiation-corrosion synergies in molten salts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Other, Other, Other |