| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Materials through High Resolution Coherent Imaging
|
| Presentation Title |
Structural Evolution of Nanoparticles Under Realistic Conditions Observed with Bragg Coherent X-ray Imaging |
| Author(s) |
Marie-Ingrid Richard, Maxime Dupraz, Corentin Chatelier, Clément Atlan, Sarah Yehya, David Simonne, Stéphane Labat, Steven Leake, Ewen Bellec, Tobias Schulli, Olivier Thomas, Joel Eymery, Eugen Rabkin |
| On-Site Speaker (Planned) |
Marie-Ingrid Richard |
| Abstract Scope |
The advent of the new 4th generation x-ray light sources represents an unprecedented opportunity to conduct in situ studies on the structure of nanoparticles during their operation. Here, we will illustrate how Bragg coherent x-ray imaging allows to image in three dimensions and at the nanoscale the strain and defect dynamics inside nanoparticles during heat treatment and catalytic reactions. This imaging technique can be coupled with molecular statics simulations to investigate the 3D strain and stress fields in nanoparticles. We will also discuss the possibility to enable extremely high-resolution and high-energy imaging with Bragg coherent x-ray diffraction at 4th generation x-ray light sources. Finally, we will highlight the potential of machine learning to predict characteristic structural features in nanocrystals just from their 3D Bragg coherent diffraction patterns. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Energy Conversion and Storage, Mechanical Properties |