| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Materials and Science
|
| Presentation Title |
Structural Changes in Molten Salt Fuel and/or Waste Stream Compounds Cs2UCl6 and Cs2UO2Cl4 from Room Temperature to Melting |
| Author(s) |
Benjamin Walusiak, Alice Iulia Smith, Sven C. Vogel, Stepehn Scott Parker, Shane Collin Mann, Alberto Bucio Gomez, Adam W. Phelan, Christopher L. Cahill |
| On-Site Speaker (Planned) |
Benjamin Walusiak |
| Abstract Scope |
Recently the advantages of molten uranium chloride fuels have been recognized for fast spectrum molten salt reactors (FSMSR’s) in particular. Attention should therefore be given to uranium chloride phases, including those that could form as fission in the reactor progresses, or in MSR waste streams. Cesium, being a major fission product, is known to form salts with uranium and uranyl chlorides in the form of Cs2UCl6, and Cs2UO2Cl4 (U4+ and U6+ respectively). Although these compounds are known, their behavior from room temperature to melting, including phase transitions and lattice expansion, has not been completely and unambiguously carried out. As such, a rigorous structural characterization of these phases, from room temperature to melting, has been performed. Phase transitions, including melting, and crystal lattice changes have been characterized by powder X-ray diffraction (PXRD, George Washington University), differential scanning calorimetry (DSC), and time of flight neutron diffraction (Los Alamos National Laboratory). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Phase Transformations, |