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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Characterization of Materials through High Resolution Coherent Imaging
Presentation Title Internal Strain Changes of Pt Nanoparticles in Response to the High Pressure in Diamond-anvil Cell
Author(s) Stephane Labat, Sarah Yehya, Marie-Ingrid Richard, Felisa Berenguer, Pierre Fertey, Steven Leake, Bjorn Wehinger, Mor Levi, Eugen Rabkin, Mohamed Mezouar
On-Site Speaker (Planned) Stephane Labat
Abstract Scope Tremendous novel properties and new forms of materials have been revealed exclusively under high-pressure. Measuring and understanding the internal strain changes in response to the external pressure produces critical information to unveil the origin of unconventional behavior of crystalline materials in high-pressure environments. We have performed in-situ experiments in diamond-anvil cells (DACs) combining high-pressure and Bragg Coherent Diffraction Imaging. The 33.169 keV incident X-ray beam has been focused to a size of 1 x 1 µm² using a KB mirror and the diffracted X-rays have been recorded by an Eiger9M detector installed at 2 m from the sample. The strain evolution and physical deformation from a single nanoscale crystal of Platinum have been tracked for 5 different levels of pressure, ranging between 0.6 and 7 GPa. It evidences the ability to visualize large inhomogeneity with high spatial resolution (15 nm) and prominent strain sensitivity (0.02 %).
Proceedings Inclusion? Planned:
Keywords Mechanical Properties, Characterization, Nanotechnology

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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