| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Grain Boundaries and Interfaces: Metastability, Disorder, and Non-Equilibrium Behavior
|
| Presentation Title |
Radiation Effects on Interfacial Phenomena in Ceramics |
| Author(s) |
Izabela A. Szlufarska, Hongliang Zhang, Jianqi Xi, Brian Sheldon, Christos Athanasiou, Xing Wang |
| On-Site Speaker (Planned) |
Izabela A. Szlufarska |
| Abstract Scope |
Interfaces are known to play an important role in controlling a plethora of properties relevant for structural materials, including mechanical strength, toughness, and corrosion resistance. However, the atomic and the chemical structures of interfaces are not static when the material is driven out of equilibrium by exposing it to high temperature, stress, or irradiation. In this talk I will discuss the effects of radiation on interfaces in SiC-based materials. I will demonstrate that radiation-induced segregation (RIS) of constituent elements is possible in ceramics, even when they form line compounds, and I will discuss the impact of RIS on corrosion resistance. Finally, I will demonstrate that ion implantation can be used as a tool for nano-engineering of interfaces in SiC-carbon nanotube composites, leading to significant improvements of fracture toughness. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Ceramics, |