Award Data

ACR will develop a beryllium replacement material suitable for use in the systems manufactured by Raytheon Missile Systems, Tucson, AZ. The work will include the identification of suitable materials such as metal alloys of magnesium or other materials as seen fit based on the required material properties of stiffness, density, strength and machinability. The processing knowledge gained during th ...

Over the past 10 to 15 years, there has been a move towards the integration of ¡§advanced¡¨ materials with improved performance in hostile propulsion environments. Tantalum carbide is stable to very high temperatures (~3900„aC) under non-oxidizing conditions, but is relatively soft and erodes appreciably with aluminized propellants. In an effort to improve the strength and erosion resista ...

DNA microarray technology, in combination with statistical and predictive modeling tools, could be used to evaluate thousands of genes against distinct gene expression patterns induced by chemical/biological agents to provide early identification and speed therapeutic intervention. The overall objective of this Phase II effort is to leverage existing public domain resources and commercial tools t ...

In the wake of the September 11th attacks and subsequent Anthrax scares, researchers worldwide are working to expand our ability to rapidly assess what poses a terrorism threat to the public. The rapid detection of specific pathogens is required for biod

During this Phase 2 program, which has been submitted under Pre-2002 MDA Phase 2 Guidelines, we propose to transition the status of potentially ultrahigh temperature-capable, highly cost-effective, HfN-based monolithic ceramics and cermets (two-phase ceramic + metallic) materials from the laboratory scale to engineering status. It is our hope and expectation that follow-on funding for our Phase 1 ...

Exothermics and their Phase 2 partner Northrop Grumman Space Technology seek to increase the reliability, producibility and performance of cryocoolers which cool Long and Very Long Wave Infrared (LWIR and VLWIR) focal planes in space surveillance systems. The materials proposed for investigation address the regenerator, a critical thermodynamic component in pulse tube and Stirling cryocoolers. In ...

Teh objective of the proposed work is to develop a process for the fabrication large-area aluminum nitride (AlN) wafers of up to 2" in diameter for III-nitride substrate applications. The growth process is based on a sublimation technique that utilizes adequately prepared SiC wafers as large-area seeds. A multi-step process developed in Phase I will be upscaled to larger area deposition, and will ...

Ultra-high performance multi-function RF electronics are required by the United States Department of Defense to enable next generation radar and sensor networks in response to an increasingly diverse array of threats to our military and our homeland. An elegant potential solution is that of gallium nitride (GaN) RF electronics, which has shown great promise on currently available yet foreign subs ...

Kyma Technologies, Inc. will demonstrate high-performance gallium nitride (GaN) microelectronic devices for X-band radar applications using single crystal semi-insulating GaN substrates. FETs for power amplifiers will benefit from lower defects resulting from growth on a native GaN substrate. The thermal conductivity of the GaN substrates will be characterized and device structures will be modeled ...

Gallium nitride substrates are now being produced by several manufacturers, however significant market penetration is being limited by high prices and low quantities. This Phase II program is aimed at addressing both of these issues by developing a growth process for the production of 1cm thick boules at a growth rate of 1mm per hour. The Phase I program met and exceeded the goals of demonstrati ...