A5063312264- Advanced materials and composites
- Metal and Thin Film Mechanics
- Fusion materials and technologies
- Nuclear Materials and Properties
- Advanced Memory and Neural Computing
- Climate Change Policy and Economics
- Integrated Circuits and Semiconductor Failure Analysis
- Diamond and Carbon-based Materials Research
- Catalytic Processes in Materials Science
- Ferroelectric and Negative Capacitance Devices
- Electoral Systems and Political Participation
- Ion-surface interactions and analysis
- Advanced Electron Microscopy Techniques and Applications
- Advanced Materials Characterization Techniques
- Semiconductor materials and devices
- Boron and Carbon Nanomaterials Research
- 2D Materials and Applications
- Graphene research and applications
- Intermetallics and Advanced Alloy Properties
- Magnesium Alloys: Properties and Applications
- Policy Transfer and Learning
- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Modular Robots and Swarm Intelligence
- Healthcare Policy and Management
South Dakota School of Mines and Technology
2024
Materials Processing (United States)
2024
Sandia National Laboratories
2020-2023
University of Illinois Urbana-Champaign
2018-2023
Ewing Marion Kauffman Foundation
2019
Bridge University
2019
Colorado Health Foundation
2019
Health Foundation
2019
Arizona State University
2019
Community Foundation for Greater Atlanta
2019
Political institutions can hinder the adoption of certain policies. Veto-players theory suggests that more political in a state will lead to lower rates policy adoption. Extending this argument climate-change policy, I contend overall climate-policy rates, for cost-concentrated tools, and significant climate Using new data on policies legislative passage 23 OECD states between 1996 2010, find empirical evidence demonstrating number intrinsic negatively affects
Tungsten is the material of choice for plasma-facing components in divertor region future plasma-burning tokamak fusion reactors. However, under low energy helium irradiation at elevated temperatures, significant surface morphology changes are expected, including pores, blisters, and fuzz. Dispersion-strengthened tungsten materials with small additions transition metal carbide dispersoids have been proposed as an alternative to pure tungsten, they shown enhanced thermomechanical properties...
Tungsten is the material of choice for plasma-facing components in divertor region future nuclear fusion reactors. Exposure to low-energy helium ion irradiation results microstructural changes as trapped at defects tungsten matrix. High-temperature exposure formation bubbles subsurface. Dispersion-strengthened materials are tungsten-based with added transition metal carbides alter impurity distribution and grain structure. In this work, thermal release from dispersion-strengthened...
Abstract Aerogels are a promising class of materials for lightweight, high‐performance insulation. However, their high specific surface area contributes to rapid densification the structure at elevated temperatures. Upon densification, favorable properties low thermal conductivity and density lost. Investigation doped metal oxide systems presents route stabilization porous structures temperatures platform study parameters conducive stability. Our work focuses on yttria‐stabilized zirconia...
Abstract Van der Waals (vdW) integration, in which pre-engineered two-dimensional building blocks are physically assembled together a chosen sequence through weak vdW interactions, holds promise toward previously unattainable applications. However, when extended to create 3D/3D monoliths, the lack of physical bonding coupled with inherent rigidity and surface roughness between 3D makes it challenging for broader implementation composites, catalysis, energy Here we demonstrate that...
Abstract The dynamic interactions of ions with matter drive a host complex evolution mechanisms, requiring monitoring on short spatial and temporal scales to gain full picture material response. Understanding the materials under ion irradiation displacement damage is vital for many fields, including semiconductor processing, nuclear reactors, space systems. Despite in service having response radiation damage, typical characterization performed post-irradiation, washing out all information...
Protective CrN-based coatings are of interest for applications requiring a combination corrosion resistance and toughness. Here, the processing-microstructure-properties relationships metallic Cr, binary CrN, nanocomposite CrSiCN reported. Hexamethyldisilazane (HMDS) was used as single-source organosilicon precursor Si C during plasma-enhanced magnetron sputtering (PEMS). By varying availability reactive species coating growth, graded architectures were produced. Scanning transmission...
Additive manufacturing of magnesium (Mg) alloys is interest for the fabrication complex-shaped lightweight materials. This study evaluates microstructure WE43 Mg alloy deposited using laser powder directed energy deposition (LPDED) additive technique in as-deposited and post-processed conditions. As-deposited samples exhibited roughly 2% porosity, which was reduced to below 0.1% after hot isostatic pressing. Despite limited grain growth heat treatment, some grains experienced abnormal...
Increasingly, foundations and nonprofits are seeking to engage their staff in learning reflection activities that assess successes challenges, then generate insights can improve programs funding strategies. Yet, despite the intuitive benefits, there common challenges often stand way of promoting strategic for continuous improvement.
Radiation enhanced diffusion often contributes significantly to the evolution of microstructures subject radiation but can be challenging predict in complex nonmetallic material systems. Here, microstructural presence ion was leveraged explore underlying transport phenomenon. Specifically, situ irradiation nanoparticles reveal rapid densification at room temperature for cerium oxide (CeO2) and yttria stabilized zirconia (YSZ) not magnesium (MgO) or silicon carbide (SiC). This is attributed...
The Foundation
Increasingly, foundations and nonprofits are seeking to engage their staff in learning reflection activities that assess successes challenges, then generate insights can improve strategies.This case study describes how the Ewing Marion Kauffman Foundation cultivated a cohort "learning champions," created simple tools processes more easily capture lessons generated internally externally, provided training facilitation techniques ensure connecting back into strategies drive decision-making.
Journal Article Structure and Phase Stability in Extreme Environments Explored via In-situ TEM Experiments Get access Eric Lang, Lang Sandia National Laboratories, Albuquerque, NM USA Search for other works by this author on: Oxford Academic Google Scholar Nathan Madden, Madden Ryan Schoell, Schoell Trevor Clark, Clark David P Adams, Adams Khalid Hattar Corresponding Author email: khattar@sandia.gov Microscopy Microanalysis, Volume 28, Issue S1, 1 August 2022, Pages 1848–1850,...