| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Plateau–Rayleigh Instability with a Grain Boundary Twist |
| Author(s) |
Fadi Abdeljawad, Omar Hussein, Keith Coffman, Khalid Hattar, Shen Dillon |
| On-Site Speaker (Planned) |
Fadi Abdeljawad |
| Abstract Scope |
Recent advances in sintering-based additive manufacturing have enabled the fabrication of hierarchical microstructures with intricate nanoscale features, including nanolattices, nanoporous materials, and stochastic nanostructures. These microstructures enable a myriad of functional and engineering applications. However, the thermal and microstructural stability of such high surface-to-volume geometries remains poorly understood. Herein, we present recent work aimed at understanding interfacial kinetic processes that govern microstructure formation and evolution during nanoscale sintering. Atomistic simulations reveal large variations in sintering rates as a function of grain boundary geometry. Theoretical and computational studies demonstrate the paramount role of local particle packing in coarsening and densification rates and interfacial instabilities of sintered rod geometries. Our work provides much needed process-structure linkages related to the processing of heterostructured materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Thin Films and Interfaces |