| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
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| Symposium
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Methods, Techniques, and Materials Discovery of Irradiation Effect Using In-situ Microscopy
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| Presentation Title |
Revealing 3D Microstructures in Nuclear Materials with High-energy X-rays |
| Author(s) |
Jonathan Almer, Peter Kenesei, Jun-Sang Park, Hemant Sharma, Xuan Zhang, Meimei Li |
| On-Site Speaker (Planned) |
Jonathan Almer |
| Abstract Scope |
High-energy x-rays from 3rd generation synchrotron sources, including the Advanced Photon Source (APS), possess high penetration power and high spatial, reciprocal space, and temporal resolution. These characteristics enable 3D imaging using both density and scattering contrast. Within the X-ray Science Division at the APS, we have developed 3D techniques to study polycrystalline materials through (i) absorption-based tomography, (ii) high-energy diffraction microscopy (HEDM or 3DXRD) and (iii) scattering tomography. HEDM provides diffraction information (strain, orientation, shape and size) of individual grains in aggregates while complementary scattering tomography provides spatially resolved but grain-averaged information. Use of these techniques for both ex situ and in situ studies of nuclear-relevant materials will be presented, along with descriptions of enabling in situ equipment. Further developments will be discussed in the context of the imminent APS upgrade, which will include a new high-energy x-ray beamline and Activated Materials Laboratory on the APS premises.
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| Proceedings Inclusion? |
Planned: |