| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Materials through High Resolution Coherent Imaging
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| Presentation Title |
Exploring the Formation of Superlattice in Metal Nanocrystals using Bragg Coherent X-ray Diffraction Imaging |
| Author(s) |
Ericmoore E. Jossou, Ana Suzana, Longlong Wu, Jiecheng Diao, Tadesse Assefa, Steven Leake, Adam Gabriel, Anton Schneider, Kim Kisslinger, Lin Shao, Yongfeng Zhang, Lynne Ecker, Jian Gan, Ian Robinson, Simerjeet Gill |
| On-Site Speaker (Planned) |
Ericmoore E. Jossou |
| Abstract Scope |
Self-organization of defects in materials can create novel physical properties with potential applications in electronics and nuclear energy systems. In our work, we studied the physical mechanism of self-organization of krypton gas bubbles in nanocrystalline palladium under ion implantation. The formation of superlattices is affected by surface defects sinks which are predominant in nanocrystals compared to bulk metals. Using Bragg coherent X-ray diffraction imaging and transmission electron microscope, we determined the structure of the nanocrystal with the resolution sufficient to resolve each palladium nanoparticle. The reconstructed electron density of the nanocrystal reveals its intrinsic structural heterogeneity, including local deviations of lattice parameters, and the presence of internal defects. Variation in strain and lattice parameters and distribution of defects as a function of implantation conditions and fundamental mechanisms of noble gas ordering in nanocrystals compared to the bulk counterpart will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Other, Nuclear Materials |