| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
Radiation Effects in Borides: The Role of Interfaces and Layering |
| Author(s) |
Izabela A. Szlufarska, Hongliang Zhang, Shuguang Wei, Muhammad Waqas Qureshi |
| On-Site Speaker (Planned) |
Izabela A. Szlufarska |
| Abstract Scope |
Interfaces play a critical role in radiation resistance of materials, because they provide sinks for radiation-induced defects and control many phenomena that are relevant to the extreme environments of nuclear reactors. In this talk, I will discuss design of binary and multi-component borides with respect to thermokinetic properties of defects. I will focus on layered ternary borides (MAB phases) and on layered high-entropy borides (HEB). Using atomistic simulations, we have determined rules for design or MAB phases with efficient defect recovery processes; these rules are consistent with our experimental findings in selected materials. For HEB, we identified descriptors that correlate with high-temperature stability of these materials. Finally, I will also demonstrate that interfaces in borides are not static during radiation and they undergo radiation-induced segregation (RIS). The mechanism underlying RIS in borides is distinct from those typically observed in metals and it involves trapping of defects as antisites. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Nuclear Materials, |