| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging
|
| Presentation Title |
Limited Angle X-ray Nanotomography Captures Solidification in 4D |
| Author(s) |
Soumyadeep Dasgupta, Kyle Farmer, Paul Chao, Shanmukha Kiran Aramanda, Xianghui Xiao, Elizabeth Holm, Ashwin Shahani |
| On-Site Speaker (Planned) |
Soumyadeep Dasgupta |
| Abstract Scope |
By studying solidification in real-time, we gain direct insight on the interfacial dynamics, leading to improved control, design, and development of technological materials. In particular, synchrotron x-ray nanotomography offers a 3D view of microstructural evolution at the nanoscale. Unfortunately, the temporal resolution is limited by the hardware capabilities of the microscope. To improve the temporal resolution to the sub-minute regime, we employ Limited Angle Tomography (LAT). We investigate via LAT the directional solidification of a near-eutectic Al-Al3Ni alloy as a proof-of-concept. A novel image processing and composite reconstruction approach allow us to mitigate artifacts generated by LAT and visualize the eutectic solidification process in 3D space and time. This technique offers promise not only in solidification science but also in 3D characterization of other phenomena which require higher temporal resolution within a limited viewing window. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Characterization, Solidification |