About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Local Ordering in Materials and Its Impacts on Mechanical Behaviors, Radiation Damage, and Corrosion
|
Presentation Title |
Disorder and Transport in Irradiated Complex Oxides |
Author(s) |
Blas P. Uberuaga |
On-Site Speaker (Planned) |
Blas P. Uberuaga |
Abstract Scope |
Disorder is a natural consequence of irradiation in complex oxides. So is the formation of defects. These two phenomena are intricately linked, with disorder impacting transport and transport evolving disorder. However, the relationship between the two isn’t yet established. Here, we describe integrated computational and experimental studies that provide insight into the coupling between disorder and defect transport in complex oxides such as pyrochlore, spinel, and perovskite. We show that cation disorder has a direct and significant impact on transport while cation transport leads to cation reordering. We further show how cation disorder is not homogeneous across a material, but varies spatially with microstructure. We finally show that both the crystal chemistry and structure impact the coupling between disorder and transport, providing insight into how disorder in these materials impact evolution under extreme environments such as irradiation and corrosion. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Modeling and Simulation, Nuclear Materials |