| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
|
| Presentation Title |
Phonon Dispersion, Lifetimes, and Thermal Transport in Nuclear Fuel Materials |
| Author(s) |
Michael E. Manley, Hao Ma, Zilong Hua, Amrita Sen, Tiankai Yao, Matthew Bryan, Ahmet Alatas, Enda Xiao, Chris Marianetti, Marat Khafizov, David Hurley |
| On-Site Speaker (Planned) |
Michael E. Manley |
| Abstract Scope |
The extraction of useful energy from nuclear fuel requires materials that can withstand extreme conditions of high temperatures and radiation levels. Controlling the transport of heat under these conditions is essential for reactor efficiency and safety. To better understand the mechanisms controlling phonon thermal transport it is critical to measure the phonon dispersion curves, including the linewidths. From these measurements it is possible to calculate phonon velocities, lifetimes, and heat capacities, all of which can be used to benchmark thermal transport calculations. In this talk, I will present inelastic x-ray and neutron scattering measurements of phonon dispersion curves and lifetimes in both oxide and metallic nuclear fuel materials, and with and without irradiation. Insights obtained from these measurements should help in the design of safe and efficient of nuclear reactors. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Nuclear Materials, |