| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Seaborg Institutes: Emerging Topics in Actinide Sciences
|
| Presentation Title |
Advancing the understanding of the thermo-physical properties of nuclear fuels through a combination of experimental and modeling methods |
| Author(s) |
Tsvetoslav R. Pavlov |
| On-Site Speaker (Planned) |
Tsvetoslav R. Pavlov |
| Abstract Scope |
The thermo-physical properties of nuclear fuels govern the operational and off-normal behavior of a nuclear reactor. At Idaho National Laboratory a suite of equipment has been developed and deployed for the measurement of thermo-physical properties of in-reactor irradiated nuclear materials. The equipment comprises of a laser flash analysis (LFA) set-up and a thermal conductivity microscope (TCM). An advanced laser flash data analysis method has been developed to expand the technique’s capabilities. The TCM is an in-house built thermo-reflectance setup designed to measure local thermal conductivity measurements with a resolution of the order 10-50 µm. Thermal diffusivity and thermal conductivity measurements have been performed on neutron irradiated U3Si2, UO2, MOX and TRISO fuels. In addition, solid state physics models have been developed to understand the mechanisms governing the evolution of these properties in nuclear fuels before and after irradiation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Modeling and Simulation |