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Meeting MS&T23: Materials Science & Technology
Symposium Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments IV
Presentation Title Phase Stability of Delta-ZrH Under Ion Irradiation
Author(s) Darren Parkison, Matheus Tunes, Wei-Ying Chen, Thomas Nizolek, Yongqiang Wang, Matthew Chancey, Tarik Saleh, Peter Hosemann, Caitlin Kohnert
On-Site Speaker (Planned) Darren Parkison
Abstract Scope Transition metal hydrides are being studied as moderators for advanced nuclear concepts where size is a critical factor. Zirconium hydrides (ZrHx), in particular, are of great interest due to their low thermal neutron cross section and high hydrogen content. However, hydrogen release and subsequent phase transformations could be problematic in nuclear systems. This release can lead to changes in the moderating efficiency and mechanical properties of the material. To this end, understanding the stability of ZrH in non-equilibrium conditions (i.e., under irradiation) is critical to the further development of ZrH moderators. In-situ TEM ion irradiation was conducted at the IVEM facility at Argonne National Laboratory over a range of temperatures to explore this phenomenon. Results on the phase stability of ZrH under ion irradiation at different temperatures will be presented.


Accelerated Assessment of Microstructure-Mechanical Property Relationships in Ni Based Superalloys
Accelerated Creep Testing for High-Temperature and Nuclear Applications
Advanced In-situ Strain Mapping for Zr Oxidation by 4D-STEM
Assessing the Ability of Nuclear Fuel Performance Codes to Predict Radially Resolved Properties in Oxide Fuels
Capturing 3D Evolution of Twin Networks in Titanium as a Function of Applied Strain
Effect of Solutes on the Radiation Induced Segregation in Ferritic Alloys at ∑3- grain Boundaries
Effect of Strain Rate on Tensile Properties of C250 Maraging Steel
Enabling Multiscale Materials Characterization with Machine Learning
Four-dimensional Scanning Transmission Electron Microscopy (4D-STEM) Characterization of Intergranular Corrosion of Austenitic Stainless Steels in Lead-bismuth Eutectic
High-Temperature Irradiation Behavior of Piezoelectric Aluminum Nitride
In Situ SEM Nanomechanics at Cryogenic Temperatures
Interdiffusion Behaviour of UN with Zircaloy-4 via Diffusion Couple Studies
M-1: Novel Method for Fabricating and Analysis of 3D Printed Composite for Radiation Shielding Containing Metalized Halloysite Nanotube
Mapping Elemental Distributions Across Thin Corrosion Films Formed on Nuclear Reactor Core and Structural Materials via Ex-situ And In-situ Atom Probe Tomography
Multimodal Characterization of Materials Corrosion in Molten Salts
Phase Stability of Delta-ZrH Under Ion Irradiation
Probing Nanoscale Properties of Radioactive Material by Advanced Correlative Microscopy
STEM-based Mapping of Nanoscale Point Defects Produced via Temperature, Irradiation, And Corrosion
Structural Stability of REE-PO4 (REE=Sm,Tb) under Swift Heavy Ion Irradiation
Thermodynamic Modeling and Calculation of Phase Formation Processes Under Irradiation Conditions of Uranium-plutonium Nitride Fuel
Transition Metal Carbonitride Materials Exposed to Swift Heavy Ions

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