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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Characterization of Materials through High Resolution Coherent Imaging
Presentation Title Ultrafast Dark-field X-ray Microscopy – A New Tool for Multiscale Analysis
Author(s) Leora E. Dresselhaus-Marais
On-Site Speaker (Planned) Leora E. Dresselhaus-Marais
Abstract Scope Defects and structural distortions dictate important hierarchical crystalline and defect dynamics in metals and functional materials. But many processes – from fracture to phase transitions – have dynamics that depend on multiscale dynamics that are difficult to reconcile between mm-A lengthscales and ms-ps timescales. Dark-field X-ray microscopy (DFXM) can now directly image defects in single- and poly-crystals, resolving distortions deep beneath the surface over a wide field of view, with high sensitivity to strain and inclination in the lattice. We have developed time-resolved DFXM over the past 5 years for multiscale analysis of dynamics, and recently extended this to ultrafast timescales at X-ray free electron lasers. I will present the new DFXM toolbox we have developed and demonstrate how it informs dislocation dynamics and thermal engineering. Our DFXM experiments can now collect movies of mesoscale deformation processes in-situ over ms-fs timescales, offering key opportunities to inform models yet untested.
Proceedings Inclusion? Planned:
Keywords Characterization,

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Nanoscale Crystalline Microscopy: The Interest of 3D Bragg Ptychography for Material Science
Advances in Phase Retrieval for In Situ Observation of Dislocation Dynamics in Gold Microcrystals
Catalytic Properties at the Nanoscale Probed by Coherent Diffraction Imaging
Characterisation of Material Defects via Plasmon-enhanced Phase Imaging
Coherent Surface Scattering Imaging with Nanometer Resolution for 3D Mesoscale Structures at Surfaces and Interfaces
Exploring the Formation of Superlattice in Metal Nanocrystals using Bragg Coherent X-ray Diffraction Imaging
Fluctuation Analysis of Coherent Electron Diffuse Scattering for Diffractive Imaging
High-speed Free-run Ptychography at the Australian Synchrotron
Imaging Intact Human Organs across the Scales using Hierarchical Phase-contrast Tomography
Imaging Laser Shockwave Dynamics in Defect-bearing Ablator Materials
In Situ and Operando 3D Imaging of Pt and Pd Electrocatalytic Nanocrystals
In Situ Bragg Coherent X-ray Diffraction Imaging Studies
Internal Strain Changes of Pt Nanoparticles in Response to the High Pressure in Diamond-anvil Cell
Method Developments for High-efficient X-ray Coherent Diffraction Imaging
MHz Microscopy at European XFEL
Nanoscale Imaging of Electrochemically-induced Strain Dynamics in a Locally Polarized Pt Grain
Near Atomic Resolution BCDI through Materials Modeling
Precise Registration Algorithm for High-resolution Imaging Applications
Rationalization of CO2 Adsorption on Ni nanocrystals using Bragg Coherent X-ray Imaging
Resolving the Morphology of a Polyphase Solidification Pattern via In-situ Nanotomography
Searching for Crystals, Twins, Peaks and Dislocations with BCDI
Solving Complex Structures with Electron Ptychography
Structural Evolution of Nanoparticles Under Realistic Conditions Observed with Bragg Coherent X-ray Imaging
The Application of Advanced Coherent Imaging Technique and Element Analysis on a Self-organized Loop Structure
Ultrafast Dark-field X-ray Microscopy – A New Tool for Multiscale Analysis
Using Automatic Differentiation to Solve the Phase Problem in X-ray Bragg Ptychography
"Similarity Mapping" Using Precession Electron Diffraction Data

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