A5048490301- Nuclear Materials and Properties
- Fusion materials and technologies
- Nuclear reactor physics and engineering
- High Entropy Alloys Studies
- Molten salt chemistry and electrochemical processes
- Diamond and Carbon-based Materials Research
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Advancements in Solid Oxide Fuel Cells
- Additive Manufacturing and 3D Printing Technologies
- Boron and Carbon Nanomaterials Research
- Hydrogen Storage and Materials
- Catalysis and Oxidation Reactions
- High Temperature Alloys and Creep
- Mechanical stress and fatigue analysis
- High-Temperature Coating Behaviors
- Innovations in Concrete and Construction Materials
University of California, Berkeley
2019-2025
Los Alamos National Laboratory
2023-2025
Government of the United States of America
2023
The development of microreactor technology presents an efficient solution for providing portable electricity, catering to both human space exploration needs within our solar system and supplying power remote Earth-bound areas. miniaturization nuclear reactors poses immediate new challenges materials science with respect the capability controlling reactions via thermalization highly-energetic neutrons. In a microreactor, neutron moderation takes place in compact geometries, thus moderator are...
Refractory High-Entropy Alloys (RHEAs) are promising candidates for structural materials in nuclear fusion reactors, where W-based alloys currently leading. Fusion must withstand extreme conditions, including i) severe radiation damage from energetic neutrons, ii) embrittlement due to H and He ion implantation, iii) exposure high temperatures thermal gradients. Recent RHEAs, such as WTaCrV WTaCrVHf, have shown superior tolerance microstructural stability compared pure W, but their...
This paper presents the polarization characteristics of electrochemical oxygen pumps (EOPs) during transfer from/to liquid lead-bismuth eutectic (LBE). A thick-walled (1.5 mm) one-end closed tube yttria partially stabilized zirconia was used as a solid electrolyte. Three different electrode air/LSM (lanthanum strontium manganite), air/LSCF cobalt ferrite) and LBE/PbO were compared. The obtained by linear sweep voltammetry in LBE at 450°C various dissolved concentrations LBE. EOP with showed...
Refractory High-Entropy Alloys (RHEAs) hold promising potential to be used as structural materials in future nuclear fusion reactors, where W and its alloys are currently leading candidates. Fusion must able withstand extreme conditions, such (i) severe radiation-damage arising from highly-energetic neutrons, (ii) embrittlement caused by implantation of H He ions, (iii) exposure high-temperatures thermal gradients. Recent research demonstrated that two RHEAs - the WTaCrV WTaCrVHf can...
The fabrication of bulk delta-phase Zirconium Hydride ($δ$-ZrH) using Zircaloy-4 as a precursor is herein reported. Characterization electron-microscopy methods indicate that the fabricated material single-phase. Sn-rich segregation zones have been observed to form direct result hydriding process. These findings experimentally validate previous \textit{ab initio} calculations on influence H incorporation in constitutional elements such Sn, Fe and Cr. effect Sn pre-existing Zr(Fe,Cr)$_{2}$...
The development of microreactor technology presents an efficient solution for providing portable electricity, catering to both human space exploration needs within our solar system and supplying power remote Earth-bound areas. miniaturization nuclear reactors poses immediate new challenges materials science with respect the capability controlling reactions via thermalization highly-energetic neutrons. In a microreactor, neutron moderation takes place in compact geometries, therefore...