Award Data

Nevada Composites has developed Green-AeroSM toolinglightweight ceramic tooling that is stable under high pressure and long-duration cure cycles and can be washed out with water after cures. Tools have a composite-compatible Coefficient of Thermal Expansion (CTE), provide tight tolerances, are free-standing, and are of affordable cost. For BMDS applications Green-AeroSM offers both improved per ...

The goal of this project is ultimately to develop a new mechanism to enable rigid body armor plates to defeat armor piercing threats. Our Phase I results showed three separate mechanisms for defeating both traditional armor piercing rounds as well as new AP rounds that use tungsten carbide penetrator cores. With these mechanisms now understood, our Phase II work will focus on optimizing the physic ...

ABSTRACT:The LWIR spectrum is well suited for moderate- to long-range free space communications because of its atmospheric window and low scattering by dust, haze, precipitation, and fog. The recent impressive laser development of QCLs is poised to provide the high speed LWIR transmitter for such a free space communication system; a corresponding advance in LWIR detectors is needed to enable the h ...

ABSTRACT:Type II strained-layer superlattice (SLS) materials are predicted to have much lower Auger recombination rates than those of HgCdTe, leading to lower dark currents; however, they are limited by Shockley-Read-Hall recombination via defect states near mid-gap. Hydrogenation is a technique that has proven to be effective in electrically passivating defects in various semiconductor-based devi ...

ABSTRACT: Sierra Engineering Inc. (Sierra) believes that existing chemical kinetic models can be efficiently incorporated into commercial CFD codes to predict the mixing, pyrolysis, soot formation and carbon deposition within film cooled rocket engines. During this Phase I STTR effort we will demonstrate that this analysis capability is practical and that we can generate appropriate model validati ...

Continuously advancing ballistic missile threats require an interceptor missile system which has greater basing flexibility and highly advanced performance in terms of burnout velocity and Divert and Attitude Control (DACS). Liquid systems are the ideal candidate to fit this role because of higher performance than solids; however, they tend to be a significant safety risk due to toxicity, corrosi ...

methyst Research Inc. will design, fabricate and test a high uniformity, large area, low noise infrared trap-detector detector for the 1- 4.5 μm wavelength range. This state of the art detector will have a large area (e.g., 1-1.8 cm diameter active area) with a spatial variability of internal quantum efficiency of less than 0.1 % between 1 μm and 4.5 μm. In addition, the internal quantum effici ...

Statement of the Problem Isotopologues are a critical tool in monitoring plant hydrobiogeochemical and microbial systems and processes. The most abundant elements utilized and exchanged by plants, microbes and ecosystems are carbon (C), hydrogen (H), oxygen (O) and nitrogen (N), all of which have naturally occurring stable isotope forms that can be used as natural tracers for understanding and int ...

Methane, is the third most prevalent greenhouse gas whose atmosphere concentration is currently over 1.7 ppm. Methane is about 21 times more potent when compared to CO2. Even though its concentration in the atmosphere is more than 200 times lower than carbon dioxide, methane is responsible for 20% of the greenhouse effect. The main natural resources for methane include wetlands, termites and the o ...

The production of oil and gas from shale reservoirs has revolutionized the petroleum industry in the United States. The success of the shale plays is the result of technological advancement much of which credit belongs to the improved understanding of the complexities of shale and the variables that affect their productivity. Over the past decade, advances in shale characterization and stimulation ...