In collaboration with the Univeristy of Tennessee,
Prof. Snead and Prof. Trelewicz's paper "Reactor performance and safety characteristics
of two-phase composite moderator concepts for modular high temperature gas cooled
reactors" published in Nuclear Engineering and Design.
In this study, we evaluate the reactor performance and safety characteristics of Be and hydride based moderator concepts relative to a graphite reference using a Ft. Saint Vrain-style fuel block.
Jonathan's paper "Microstructural Dependence of the Incipient to Homogeneous Flow
Transition in Metallic Glass Composites" published in Scripta Materialia.
In this study, we employ a bonded-interface indentation technique to quantify the strain distribution within the plastic zone of Zr-based MGMCs containing a dendritic crystalline phase.
Streit's paper "Revealing the Synergistic Effects of Sequential and Simultaneous Dual
Beam Irradiations in Tungsten via In-situ TEM" published in Journal of Nuclear Materials.
In this study, in-situ sequential (He implantation followed by Kr irradiation and vice-versa) and simultaneous heavy ion Kr irradiations and He implantations are performed on tungsten at 1223 K.
Prof. Trelewicz receives DOE Office of Basic Energy Sciences research grant.
This DOE award of $950,000 will be used toward fundamental materials research in understanding "Irradiation Defect Formation and Evolution in Doped Metallic Interfaces" for nuclear reactor applications.
Prof. Trelewicz receives Office of Naval Research research grant.
This award of $460,000 will be used toward fundamental materials research in “Tailoring Microstructure in L-PBF 316L for Enhancing Corrosion Performance”.
Streit's paper "Temperature Threshold for Preferential Bubble Formation on Grain Boundaries
in Tungsten Under in-situ Helium Irradiation" published in Scripta Materialia.
In this paper, in-situ irradiation/transmission electron microscopy (TEM) is employed to study the effects of low energy (16 keV) helium implantation effects on tungsten (a plasma facing material and divertor candidate for fusion power due to its attractive physical properties) at two elevated temperatures of 1073 and 1223 K.
Jonathan's paper "Shear localization and its dependence on microstructural length
scales in metallic glass composites" published in Materialia.
In this study, we employ instrumented nanoindentation to study the deformation behavior of MGM composites where the crystalline phase was introduced in situ through dendritic solidification.
Prof. Trelewicz presents an invited talk at the Minerals, Metals, and Materials Society
Professor Trelewicz's presentation highlighted our work on "Mechanistic Transitions Underpinning Grain Boundary Segregation Strengthening in Nanocrystalline Alloys".
Streit presents a talk at the Minerals, Metals, and Materials Society Meeting.
Streit's presentation highlighted our work on "Coupled Irradiation Induced Grain Growth and Damage Evolution in Solute Stabilized Nanocrystalline Tungsten".
Prof. Trelewicz presents a talk at the Minerals, Metals, and Materials Society Meeting.
Jason's presentation highlighted our work on "Understanding the Anomalous Corrosion Behavior of Additively Manufactured Stainless Steels through Multi-modal Synchrotron Techniques".
Jason's paper "Multimodal Synchrotron Approach: Research Needs and Scientific Vision"
published in Synchrotron Radiation News.
This report summarizes the outcome of a workshop held during the National Synchrotron Light Source–II (NSLS-II)/Center for Functional Nanomaterials (CFN) 2019 Users’ Meeting at Brookhaven National Laboratory (BNL) on May 22, 2019. Multimodal approaches are defined by the convergence of multiple measurement probes to tackle a single scientific problem.
Prof. Trelewicz presents an invited talk at Forschungszentrum Juelich GmbH, Jülich
Jason's presentation highlighted our work on "Nanoengineered Tungsten Alloys for Future Fusion Reactor Platforms".