About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification X
|
| Presentation Title |
Capturing solidification and melting in real-time at the nanoscale |
| Author(s) |
Ashwin Shahani |
| On-Site Speaker (Planned) |
Ashwin Shahani |
| Abstract Scope |
The ability to directly observe the evolution of microstructure represents a milestone in non-destructive characterization. Synchrotron-based x-ray microtomography has provided valuable information on the solidification of large-scale features (such as dendrites). Yet smaller-scale features (such as eutectic lamellae) have remained out of reach, until now. Here, we showcase the new capabilities in full-field x ray nano-imaging via transmission x-ray microscopy. This technique enables us to obtain unprecedented insights on the evolution of eutectics during solidification, melting, and under external perturbations like an imposed electric field. Our efforts are made possible by a new, two-zone furnace that permits real-time studies of directional solidification. As a result, we can correlate the morphology of the solid-liquid interfaces with the 3D shapes of the eutectic solids frozen behind the growth front. We discuss the broader impacts of these findings on fundamental science and outline some opportunities for future investigations using our new experimental platform. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Characterization, Composites |