| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Activation Energy of Simulated Surface Diffusion in Nanoporous Gold. |
| Author(s) |
Conner Marie Winkeljohn, Sadi Md Shahriar, Erkin Seker, Jeremy Mason |
| On-Site Speaker (Planned) |
Conner Marie Winkeljohn |
| Abstract Scope |
Nanoporous gold (np-Au) has applications in a wide variety of fields, from optical sensors to biomedical devices. Part of the reason it has found use in such diverse areas is because its morphology can be varied to accommodate the required length scale of each device. This morphological evolution is thought to be governed by the surface diffusion of gold atoms, and a thorough characterization of surface diffusion in np-Au would expand the range of attainable morphologies and allow accurate predictions of the conditions in which the morphology is stable. This talk explores the relationship between the curvature of the surface and the activation energy for surface diffusion. Specifically, molecular dynamics simulations are used to estimate the surface diffusion coefficient for a variety of surface curvatures. Given the high surface curvatures present in np-Au, this relationship will likely be critical in developing accurate models of np-Au morphology evolution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Nanotechnology, Modeling and Simulation |