| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Grain Boundaries and Interfaces: Metastability, Disorder, and Non-Equilibrium Behavior
|
| Presentation Title |
Relationships between Grain Boundary Crystallographic Structure and Grain Boundary Properties |
| Author(s) |
Gregory S. Rohrer |
| On-Site Speaker (Planned) |
Gregory S. Rohrer |
| Abstract Scope |
Much of what we know about grain boundaries and the way they move derives from the study of bicrystals using elegant experiments and atomistic simulations. In a bicrystal, the grain boundaries are free to migrate without the constraints imposed by a grain boundary network. In a polycrystal, each boundary is connected to (on average) ten other boundaries at five triple lines. In this talk, I will discuss measurements of grain boundary properties (areas, curvatures, energies, and velocities) from the study of many (on the order of 100,000) grain boundaries in three-dimensional polycrystals. We find that all of these properties vary with all five crystallographic parameters describing the boundary. In addition, we find that some of these properties are dependent on one another and others are independent. The findings highlight the important of grain boundary crystallography and imply the importance of grain boundary atomic structure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Other |