Award Data

With the 4 billion tons of uranium estimated to be dissolved in the earth & apos;s oceans, an essentially unlimited resource is available to those with easy and affordable access. With decades of research towards the extraction of uranium from seawater, focus has been directed towards the selectivity of the adsorbent material, the cost of the material, and the ability of the adsorbent to be recycl ...

Computer simulations of multi-phase flows are important for many applications. In the proposed work, we plan to advance Eulerian-Lagrangian methods by using Adaptive Mesh Refinement for multi-scale resolutions, and CPU-GPU parallelization to drastically reduce computing time. Eulerian-Lagrangian methods treat the gas/liquid phase as a continuum (Eulerian) fluid, and solid particulates as discrete ...

With the promise of low cost and high capacity, silicon-based materials have emerged as the anode of the future for lithium ion batteries. Commercial success has been hindered by limited cycle life, expensive precursors and non-scalable processes. The overall approach will use low- cost microsilicon starting material and readily scalable methods to attain nanostructure amenable to high capacity an ...

This Fast Track SBIR project aims at developing electrically insulated scanning probes suitable for high resolution electrical nano-imaging in conductive solutions. These probes, when used in atomic force microscopy, enable scanning electrochemical microscopy (AFM-SECM) to be performed. This method is increasingly important for the scientific study of applications including nano-electrodes for sol ...

Many of todays most challenging problems in science and engineering involve multiple, complex, coupled physical systems requiring advanced modeling techniques. These often involve combustion or other sources of energy release, fluid-structure interaction (FSI), computational fluid dynamics (CFD) or computational structural mechanics (CSM). Large-scale modeling and simulation of multiphysics pro ...

Although several critical energy saving technologies under development today require Gallium Nitride (GaN) based semiconductor devices, a source of high quality and inexpensive GaN wafers does not yet exist. This lack of GaN wafers adds complexity to GaN device production and makes development of new GaN device based products slower and more costly. Lowest cost, highest volume, wafer production a ...

Gallium Nitrides (GaN) device market size is second only to silicon and is projected to be $50-100 billion in size as markets mature for GaN power devices, solid state lighting, and hundreds of other new applications. Even with this remarkable forecast, GaN epitaxy is still produced primarily on foreign (non-GaN) substrates, typically sapphire, silicon, or silicon carbide, which cause billions of ...

Tungsten and its alloys are candidates for plasma facing component heat sinks and armor due to their low sputtering rate, high melting point, high thermal conductivity, high strength at elevated temperatures and low tritium inventory. However during service, the plasma facing components will be exposed to a high flux of 14MeV neutrons from the plasma and low energy neutrons from the blanket, whic ...

In order to raise the inlet gas temperatures to improve thermal efficiency of industrial gas turbines (IGT), turbine blade materials are required to have superior creep rupture resistance. Ni-base single crystal (SX) blades have higher creep strength in comparison with directionally solidified blades, and are widely used in aerospace engines. However, their use in IGTs, which require larger size c ...

Future particle physics experiments at the high energy frontier, such as LHC, HL-LHC, ILC, CLIC or Multi-TeV Muon Collider, will all require silicon detectors capable of reconstructing charged particle trajectories with high accuracy in the presence of significant high occupancy. These experiments will impose stringent demands on the data links to transfer the data from the silicon detector to the ...