A5038272900- Nuclear Materials and Properties
- Fusion materials and technologies
- Ion-surface interactions and analysis
- Nuclear reactor physics and engineering
- Electron and X-Ray Spectroscopy Techniques
- Advanced Materials Characterization Techniques
- High Temperature Alloys and Creep
- Nuclear Physics and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Block Copolymer Self-Assembly
- Integrated Circuits and Semiconductor Failure Analysis
- Solidification and crystal growth phenomena
- Astronomy and Astrophysical Research
- Metal and Thin Film Mechanics
- Nuclear materials and radiation effects
- Fluid Dynamics and Thin Films
- Stellar, planetary, and galactic studies
- Microstructure and mechanical properties
- Gamma-ray bursts and supernovae
- Advanced materials and composites
- Advanced Electron Microscopy Techniques and Applications
- Diamond and Carbon-based Materials Research
- X-ray Spectroscopy and Fluorescence Analysis
- Surface and Thin Film Phenomena
- Thermodynamic and Structural Properties of Metals and Alloys
Oregon State University
2018-2024
Sandia National Laboratories
2018-2023
University of Tennessee at Knoxville
2023
Carolinas Medical Center
2022
Touro College
2022
University of New Mexico
2019
Integrated Dynamic Electron Solutions (United States)
2019
Lawrence Livermore National Laboratory
2019
Sandia National Laboratories California
2018
University of Wisconsin–Madison
2016-2017
We present kilohertz-scale video capture rates in a transmission electron microscope, using camera normally limited to hertz-scale acquisition. An electrostatic deflector rasters discrete array of images over large camera, decoupling the acquisition time per subframe from readout time. Total-variation regularization allows features overlapping subframes be correctly placed each frame. Moreover, system can operated compressive-sensing mode, whereby deflections are performed known pseudorandom...
Inconsistencies in ring-pull testing methods for thin-walled tubes make it difficult to compare a material's mechanical properties the hoop direction presented past publications. The effect of test setup, specifically mandrel diameter, was investigated nuclear fuel cladding iron-chromium-aluminum (FeCrAl) alloy, C26M (Fe-12Cr-6Al-2Mo). Mandrel diameter can change how ring deforms and friction effects, further convoluting results from testing. To address impact size relation gaugeless samples...
The effects of irradiation on 3C-silicon carbide (SiC) and amorphous SiC (a-SiC) are investigated using both in situ transmission electron microscopy (TEM) complementary molecular dynamics (MD) simulations. single ion strikes identified the TEM experiments, utilizing a 1.7 MeV Au3+ beam with nanosecond resolution, contrasted to MD simulation results defect cascades produced by 10–100 keV Si primary knock-on atoms (PKAs). simulations also structures that could possibly be responsible for...
Palladium can readily dissociate molecular hydrogen at its surface, and rapidly accept it onto the octahedral sites of face-centered cubic crystal structure. This include radioactive tritium. As tritium β-decays with a half-life 12.3 years, He-3 is generated in metal lattice, causing significant degradation material. Helium bubble evolution high concentrations result blister formation or exfoliation must therefore be well understood to predict longevity materials that absorb A over-pressure...
Abstract Development of new, radiation-tolerant materials that maintain the structural integrity and safety margins over course a nuclear power reactor’s service life requires ability to predict degradation phenomena. Modern post-irradiation examination methods make use specialized high-flux test reactors dedicated characterization facilities limit occupational exposure prevent spread radioactive contamination. This article illustrates these advanced techniques characterize precipitates in...