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About this Abstract
Meeting	2021 TMS Annual Meeting & Exhibition
Symposium	Characterization of Materials through High Resolution Imaging
Presentation Title	X-ray Based Nanodiffraction to Study Strain in Materials for Nuclear Energy
Author(s)	Ericmoore E. Jossou, Mehmet Topsakal, Xiaojing Huang, Khalid Hattar, Hanfei Yan, Yong Chu, Cheng Sun, Lingfeng He, Jian Gan, Lynne Ecker, Simerjeet Gill
On-Site Speaker (Planned)	Ericmoore E. Jossou
Abstract Scope	Understanding microstructural and strain evolutions induced by fission gas in nuclear fuel is crucial for designing next generation of nuclear reactors, as it is responsible for volumetric swelling and catastrophic failure in metallic fuels. Depth-resolved synchrotron X-ray nanodiffraction uniquely permits the measurement of lattice strain associated with irradiation-induced defects with sub-micron spatial resolution while X-ray fluorescence (XRF) enables 2D imaging of fission gas bubble positions with nanoscale resolution. Here, our recent work on residual lattice strain caused by krypton-ion-implantation in tungsten using a correlative multi-modal approach will be presented. For instance, the heterogeneous distribution of local defects accounts for the compressive and expansive lattice strain observed in the tungsten matrix. Beyond providing a detailed understanding of irradiation-induced microstructural changes in ion irradiated single crystal materials, this work demonstrates the utility of multi-modal scanning nanofocused X-ray measurements for the optimization of materials for the future nuclear reactors.
Proceedings Inclusion?	Planned:
Keywords	Characterization, Nuclear Materials, Other

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