| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Hierarchical Multiscale Modeling Framework to Predict Surface Morphology of Plasma Facing Components |
| Author(s) |
Brian D. Wirth |
| On-Site Speaker (Planned) |
Brian D. Wirth |
| Abstract Scope |
Harnessing fusion energy requires materials that can cope in extreme environments, which is more challenging by a lack of representative laboratory-scale environments which can mimic the harsh fusion reactor conditions. As a result, computational materials modeling is the mainstay of the research on fusion materials. For plasma facing components like tungsten, low-energy helium and hydrogen isotope plasma implantation is known to produce a drastic surface topology evolution referred to as fuzz. In this presentation, an atomistically informed predictive model is described. This model describes the formation and the early stage of evolution of the fuzz-like surface morphology mediated by dynamical processes that are characterized by disparate spatiotemporal scales. In our modeling framework, large-scale MD simulation results are used to parameterize constitutive equations required for the closure of the continuum-scale model for the surface morphological response of the plasma-facing material and compared to experimental measurements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Nuclear Materials, |