About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Chemistry and Physics of Interfaces
|
Presentation Title |
On the Structure and Properties of the Spinel/Corundum Interface |
Author(s) |
Blas P. Uberuaga |
On-Site Speaker (Planned) |
Blas P. Uberuaga |
Abstract Scope |
In many scenarios, for example on the surface of corroded steels, multiphase structures of spinel and corundum oxides form. The interface between these two structures plays an important role in determining the continued corrosion behavior of the underlying steel. In this work, we have synthesized epitaxial spinel/corundum bilayers to isolate the interface and examine its structure and properties. We have used ion beam irradiations to determine how those interfaces evolve under damage. By changing the thickness of the layers, we control the misfit dislocation density and examine the impact on disordering processes and damage evolution. Finally, we used atomistic modeling to understand how the interfacial structure depends on the chemical details of the interface and how it impacts the interaction with defects. Together, these studies provide insight into the nature of this interface and how chemistry and crystalline defects impact the mechanisms of initial disordering processes under irradiation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Thin Films and Interfaces, Other |