| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Materials and Science
|
| Presentation Title |
Microstructural and Mechanical Characterization of High Burnup UO2 Fuel |
| Author(s) |
Fabiola Cappia, David Frazer, Kaustubh Bawane, Colby Jensen, Dan Wachs |
| On-Site Speaker (Planned) |
Fabiola Cappia |
| Abstract Scope |
Safety and transient testing are essential pillars for both the development of Accident Tolerant Fuels and the optimization of fuel economics beyond current burnups. The successful interpretation of the transient testing results relies upon the knowledge of the initial microstructure of fuel and cladding, as it plays into the response of the system during the test. One example is the phenomenon of fine fragmentation that occurs in light-water reactor fuel at high burnup. The lack of information regarding the initial conditions of the fuel microstructure has hindered the development of a fully mechanistic fragmentation criterion and the determination of the conditions under which pulverization is predominant. The better knowledge of irradiation-induced phenomena could help the prediction of its performance. In this context, we applied many advanced techniques to determine properties relevant for safety and performance. The results are interpreted in the context of engineering scale post-irradiation examinations and irradiation conditions |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Nuclear Materials, Ceramics |