| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermal Transport in Crystalline and Non-crystalline Solids: Theory and Experiments
|
| Presentation Title |
Multi-scale Thermal Transport Characterization of Nuclear Fuels |
| Author(s) |
Zilong Hua, Robert Schley, Amey Khanolkar, Austin Fleming, Colby Jensen, David Hurley |
| On-Site Speaker (Planned) |
Zilong Hua |
| Abstract Scope |
Thermal conductivity of nuclear fuel degrades during operation due to irradiation-induced microstructure damage. The evolution of microstructure is multiscale in nature and includes generation of point defects, line defects and larger three dimensional defects such as pores and small cracks. Laser-based thermal wave microscopy is well suited for this application. Focusing optics can be used to change the heating volume enabling probing thermal transport on multiple length scales. Modulated thermal reflectance and photothermal radiometry are used to investigate thermal transport of porous fuel surrogates on multiple length scales. The validity of a simple porosity correction factor is tested by comparing micron scale results to millimeter scale results. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |