| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Mechanistic Understanding of Hydrothermal Corrosion of SiC Under Irradiation |
| Author(s) |
Peng Wang, Gary S Was |
| On-Site Speaker (Planned) |
Peng Wang |
| Abstract Scope |
SiC-SiC composite materials are of growing interest for accident tolerant fuel cladding applications due to their excellent physical and mechanical properties that are desirable for high-temperature environments and under intense radiation conditions. However, under normal operation conditions, hydrothermal corrosion of SiC has been a concern in the light water reactor environment where continuous dissolution of SiC into the water was accelerated under the influence of water radiolysis and irradiation. An in-situ irradiation-corrosion experiment on 3C-SiC using proton beam has demonstrated that hydrothermal corrosion of SiC in high-temperature water depends strongly on both the corrosion potential and irradiation. Corrosion of SiC in water was also studied using ab initio molecular dynamic (AIMD) to elucidate the atomic-scale corrosion mechanism. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Ceramics |