About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
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Presentation Title |
Accelerated Fuel Qualification using In Situ Neutron Diffraction |
Author(s) |
Edward G. Obbard, Jennifer Helen Stansby, Vanessa K. Peterson, Denise Adorno Lopes, Patrick A. Burr, Joseph Bevitt, Anna Paradowska, Elizabeth S. Sooby, Joshua T. White, Pär Olsson |
On-Site Speaker (Planned) |
Edward G. Obbard |
Abstract Scope |
We are exploring how in situ neutron diffraction will accelerate the future qualification of nuclear fuels. Here, we present case studies for our work at the Australian Centre for Neutron Scattering on U3Si2, UN, and UB2. Neutron diffraction brings decisive advantages to the analysis of uranium compounds used in fuel. We have measured hydriding strains, reaction products during in situ D2O steam corrosion, and deuterium location to validate DFT modelling of the U3Si2 hydride. For UN, we measured thermal expansion, and corrosion rates, to measure activation energy in corrosion of pure UN, Zr- and Cr- doped UN in steam. Initial work on UB2 investigates intermediate corrosion products, and corrosion onset temperatures in steam. Initial results from neutron tomography and strain scanning are presented, showing how complementary neutron techniques, applied to nuclear fuel materials, may be designed to achieve the overall goal of shortening fuel development time. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Nuclear Materials, Energy Conversion and Storage |