A5026119695- Glass properties and applications
- Nuclear materials and radiation effects
- Recycling and utilization of industrial and municipal waste in materials production
- Radioactive element chemistry and processing
- Metallurgical Processes and Thermodynamics
- Phase Equilibria and Thermodynamics
- Concrete and Cement Materials Research
- Particle physics theoretical and experimental studies
- Nuclear and radioactivity studies
- Magnetic properties of thin films
- Heusler alloys: electronic and magnetic properties
- Advanced Thermoelectric Materials and Devices
- Luminescence Properties of Advanced Materials
- Graphite, nuclear technology, radiation studies
- High-Energy Particle Collisions Research
- Thermodynamic properties of mixtures
- Nuclear Materials and Properties
- Magnetic and transport properties of perovskites and related materials
- Pigment Synthesis and Properties
- Material Dynamics and Properties
- Surface and Thin Film Phenomena
- Quantum Chromodynamics and Particle Interactions
- Iron and Steelmaking Processes
- Topological Materials and Phenomena
- Engineering Applied Research
University of America
2015-2024
Catholic University of America
2015-2024
United States Department of State
2016-2022
South Dakota State University
2019
Chapman University
2019
Pacific Northwest National Laboratory
2014
Savannah River National Laboratory
2013
Pharmaceutical Formulations (United States)
2013
United States Department of Energy
2013
State Laboratory
2013
How the bulk of Universe's visible mass emerges and how it is manifest in existence properties hadrons are profound questions that probe into heart strongly interacting matter. Paradoxically, lightest pseudoscalar mesons appear to be key further understanding emergent structure mechanisms. These mesons, namely pion kaon, Nambu-Goldstone boson modes QCD. Unravelling their partonic interplay between Higgs-boson mechanisms a common goal three interdependent approaches -- continuum QCD...
The original Redlich–Kwong equation, together with the usual quadratic mixing rules, has been used to calculate phase diagrams for binary fluid mixtures and classify them according system of van Konynenburg Scott. Global (maps) showing extent various diagram classes in space parameters are presented. While molecules equal size results very similar those known der Waals maps become topologically different unequal sizes; some complicated classes, which otherwise cover small domains on or...
Optical and transport properties of materials depend heavily upon features electronic band structures in proximity to energy extrema the Brillouin zone (BZ). Such are generally described terms multi-dimensional quadratic expansions corresponding definitions effective masses. Multi-dimensional expansions, however, permissible only under strict conditions that typically violated by degenerate bands even some non-degenerate bands. Suggestive such as "band warping" or "corrugated surfaces" have...
Nearly 100 tests were performed with prototypical melters and off-gas system components to investigate the extents which technetium is incorporated into glass melt, partitioned stream, captured by treatment during waste vitrification. The employed several simulants, spiked 99mTc Re (a potential surrogate), of low activity separated from nuclear wastes in storage Hanford tanks, planned for immobilization borosilicate glass. Single-pass retention averaged about 35 % increased significantly...
Technetium-99 is an abundant, long-lived (τ1/2 = 213 000 years) fission product that creates challenges for the safe, long-term disposal of nuclear waste. Although 99Tc receives attention largely because its high environmental mobility, it also causes problems during incorporation into waste glass volatility Tc(VII) compounds. This decreases amount stabilized in and contamination melter off-gas system. The approach to decreasing has received most reduction volatile species less Tc(IV) melt....
Vitrification has emerged as the treatment option of choice for most dangerous radioactive waste. But dealing with nuclear waste legacy Cold War will require state-of-the-art facilities and advanced glass formulations.
Abstract Several cobalt-based Heusler alloys have been predicted to exhibit Weyl Semimetal behavior due time reversal symmetry breaking. Co 2 TiGe is one of the ferromagnetic semimetals. In this work, we report weak localization and small anomalous Hall conductivity in half-metallic thin films grown by molecular beam epitaxy. The longitudinal resistivity shows semimetallic behavior. Elaborate analysis magnetoconductance presence a quantum correction present even up room temperature reduction...
Technetium-99 (Tc) and iodine-129 (I) are two long-lived fission products of high volatility, which makes their study in glass structure challenging. Both technetium iodine have broad ranging multivalent chemistry complex reactivity dependent on redox conditions; may vary from Tc0 to Tc7+ I- I7+. Relatively few studies been done speciation glass, part because low retention at the temperatures required for melting. To better understand structural behavior Tc I various nuclear waste glasses, a...
We report the growth and characterization of Co2FeAl nanowires. Nanowires are grown using electrospinning method diameters range from 50 to 500 nm. These nanowires exhibit cubic crystal structure with a lattice constant a=5.639 Å. The ferromagnetic behavior very high Curie temperature. temperature dependent magnetization displays an anomaly in 600–850 K, which disappears at higher external magnetic fields.
Large low field magnetoresistance (LFMR) of about 28% is observed in La0.67Sr0.33MnO3 nanowires with 80 nm diameter at T=300 K. A gradual decrease the LFMR has been found increase wire diameter. The drops to zero for wires above 280 are grown by means electrospinning process and exhibit distorted orthorhombic crystal structure. large considered as a grain boundary effect several perovskite systems. these manganites reduced dimensions may be useful room temperature device applications.
The $^{1}H$($e,e^\prime K^+$)$\Lambda$ reaction was studied as a function of the Mandelstam variable $-t$ using data from E01-004 (FPI-2) and E93-018 experiments that were carried out in Hall C at 6 GeV Jefferson Lab. cross section fully separated into longitudinal transverse components, two interference terms four-momentum transfers $Q^2$ 1.00, 1.36 2.07 GeV$^2$. kaon form factor extracted Regge model by Vanderhaeghen, Guidal, Laget. results establish method, previously used successfully...