| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Characterization of Defects Generated from Thermal Stresses in SiC/SiC Composites |
| Author(s) |
David David Arregui-Mena, Takaaki Koyanagi, Yutai Katoh |
| On-Site Speaker (Planned) |
David David Arregui-Mena |
| Abstract Scope |
SiC/SiC composites are candidate materials for fuel cladding of Light Water Reactors (LWRs). Thermal stresses, the reactor environment as well as dimensional changes induce defects that contribute to the drop in properties of SiC/SiC composites. This research comprehensively analyzes the influence of defects generated from thermal stresses via x-ray computed tomography (XCT) and FIB-SEM tomography. These results were part of a neutron irradiation campaign that aimed to simulate temperature gradients similar to what is expected during LWR operation. XCT data shows the defects induced by thermal gradients, whereas the FIB-SEM tomography illustrates the defects localized around the interfaces of the materials. These results identify and quantify which features or defects contribute more to the possible reduction of thermomechanical properties of SiC/SiC cladding. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Composites |