A5025137918- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Plasma Diagnostics and Applications
- nanoparticles nucleation surface interactions
- Machine Learning in Materials Science
- Advanced Materials Characterization Techniques
- Ion-surface interactions and analysis
- Metal and Thin Film Mechanics
- Nuclear Materials and Properties
- ZnO doping and properties
- Advanced Thermoelectric Materials and Devices
- Electron and X-Ray Spectroscopy Techniques
- Fusion materials and technologies
- Advanced Chemical Physics Studies
- Multiple and Secondary Primary Cancers
- Nanocluster Synthesis and Applications
- Semiconductor materials and devices
- Electrohydrodynamics and Fluid Dynamics
- Intelligence, Security, War Strategy
- Chalcogenide Semiconductor Thin Films
- Economic and Financial Impacts of Cancer
- Pancreatic and Hepatic Oncology Research
- Advanced Physical and Chemical Molecular Interactions
- Diamond and Carbon-based Materials Research
- Surface Chemistry and Catalysis
Government of the United States of America
2023
Los Alamos National Laboratory
2020-2023
Clemson University
2023
Michigan State University
2023
University of California, Los Angeles
2018-2021
National Defense University
2017
University of Nevada, Las Vegas
2013-2015
In the quest of new materials that can withstand severe irradiation and mechanical extremes for advanced applications (e.g. fission & fusion reactors, space applications, etc.), design, prediction control beyond current material designs become paramount. Here, through a combined experimental simulation methodology, we design nanocrystalline refractory high entropy alloy (RHEA) system. Compositions assessed under extreme environments in situ electron-microscopy reveal both thermal stability...
High-entropy materials represent the state-of-the-art on alloy design strategy for future applications in extreme environments. Recent data indicates that high-entropy alloys (HEAs) exhibit outstanding radiation resistance face of existing diluted counterparts due to suppressed damage formation and evolution. An extension HEA concept is presented this paper towards synthesis characterization novel ceramics as emergent application environments where energetic particle irradiation a major...
We have investigated the crystal structure and phase stability, elastic incompressibility, electronic properties of PbS based on high-pressure neutron diffraction, in-situ electrical resistance measurements, first-principles calculations. The refinements show that orthorhombic is structurally isotypic with indium iodide (InI) adopting a Cmcm (B33). cubic-to-orthorhombic transition occurs at ∼2.1(1) GPa 3.8% volume collapse positive Clausius–Clapeyron slope. Phase-transition induced softening...
Zinc oxide (ZnO) undergoes a pressure-induced structural transition from its normal ambient-pressure wurtzite (WZ) phase to rocksalt (RS) around 10 GPa. A recent experiment shows that the high-pressure RS ZnO can be recovered and stabilized at ambient conditions, which raises exciting prospects of expanding range properties ZnO. For fundamental understanding phase, we have performed first-principles calculations determine electronic, phonon, thermodynamic high (20 GPa) (0 pressure....
We propose a systematic method to construct crystal-based molecular structures often needed as input for computational chemistry studies. These include crystal ``slabs" with periodic boundary conditions (PBCs) and non-periodic solids such Wulff structures. also introduce build slabs orthogonal PBC vectors. methods are integrated into our code, Los Alamos Crystal Cut (LCC), which is open source thus fully available the community. Examples showing use of these given throughout manuscript.
668 Background: We investigated the impact of distance traveled to a tertiary care center for treatment in management and outcomes patients with pancreatic adenocarcinoma (PDAC). Methods: Patients treated operable PDAC at single institution from 2010-2019 were retrospectively reviewed. Data was collected on demographics, tumor characteristics, social determinants health, diagnostic/staging work-up, surgical details, outcomes. divided into three groups based our institution: Group A, <10...
High-entropy materials represent the state-of-the-art on alloy design strategy for future applications in extreme environments. Recent data indicates that high-entropy alloys (HEAs) exhibit outstanding radiation resistance face of existing diluted counterparts due to suppressed damage formation and evolution. An extension HEA concept is presented this paper towards synthesis characterization novel ceramics as emergent application environments where energetic particle irradiation a major...
Current global conflict trends are pulling NATO away from its traditional collective defense mission into stability and reconstruction (S&R) operations with greater frequency.S&R environments require to collaborate support host nation governments, international organizations, a range of non-governmental organizations address security, political, social challenges.However, encounters difficulty collecting sharing intelligence information in these environments.This inability communicate...
Short-range order (SRO) in multicomponent concentrated alloys affects their mechanical response. Hence, is paramount to understand how composition modifies the chemical ordering system design materials with optimal properties. We present here a methodology predict SRO and thermodynamic properties chemically complex systems apply it WTaCrVHf quinary alloy. observe that addition of Hf significantly SRO, mainly at intermediate low temperatures, matching experimental observations.
We propose a systematic method to construct crystal-based molecular structures often needed as input for computational chemistry studies. These include crystal ``slabs" with periodic boundary conditions (PBCs) and non-periodic solids such Wulff structures. also introduce build slabs orthogonal PBC vectors. methods are integrated into our code, Los Alamos Crystal Cut (LCC), which is open source thus fully available the community. Examples showing use of these given throughout manuscript.
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