Award Data

The objective of the proposed project is to develop innovative new analytical instrumentation and methodology capable of performing fully automated, non-destructive analysis of semiconductor sensor elements and arrays locate on three inch diameter wafers. The instrumentation would be capable of analyzing II-VI compounds and alloys, particularly HgCdTe. The methodology would employ state-of-the-a ...

Cured aircraft composite materials present a particularly difficult challenge for recycling technology. Those materials have mostly thermosetting epoxy matrices and occur in intimate association with metals, paints, and coatings. Current techniques for recycling thermoset composites, mostly for automotive sheet molding compounds (SMC), involve pulverizing the material for use as fillers. Th ...

Although technologies derived under the Integrated High Performance Turbine Engine Technology (IHPTET) initiative should result in higher performance of gas turbine engines, the durability of engine components continues to be one of the most important design issues which impacts their affordability and robustness. It is currently very difficult to measure or predict the fatigue life of engine com ...

Space structures and high-speed interceptor technology can be significantly enhanced if lighter weight composite structural materials that possess inherently high-strength damage-resistant properties can be developed on a cost-effective basis. A novel laminated sandwich composite concept is proposed that has the potential to significantly improve upon stiffened composites in use today. Current sti ...

This Phase I effort is to synthesize and develop material processing systems that possess the mechanical properties, and processing characteristic for use in flexible electronic and photonic devices. We will demonstrate the feasibility of fabricating in this effort to optimize the modulator/switch and investigate ways to render it manufacturable and multichip module packagable. This would include ...

The stress analysis and fatigue life prediction of the bonded repaired damaged zone of the aircraft structure is a challenging problem for designers. The lack of accurate life prediction methodologies limit the utilization of composite materials to repair the damaged structure. It is proposed to develop analytically and experimentally validated computer program modules for stress analysis and fa ...

The need for compact solid state ultraviolet light sources includes clinical light sources for a variety of surgeries, analytical instrumentation sources and communications systems based on shorter wavelengths that will be able to handle higher information densities. Such advanced optoelectric applications demand totally new materials. Of those available, silicon carbide is the most promising for ...

Integration of many different devices on a single silicon carbide (SiC) substrate is necessary to realize the full potential of high temperature or high power devices for markets ranging from industrial and consumer to military systems to transportation power and control. Integration requires that the entire device package, individual devices, contacts and interconnect materials, be ...

The III-V nitrides, (Al, In, Ga)N, are promising materials for high temperature, high power and high frequency devices due to the wide bandgaps, high electron saturation velocity and high electronic mobility transistor (HEMT) structures available in this alloy system. These devices would find wide-spread commercial use as power amplifiers in base station transmitters for personal communications ...

Commercially viable silicon carbide device manufacturing processes depend on an ability to grow'low defect density epitaxial layers. Low defect density epitaxial layers start with pristine SiC substrate surfaces. Epi-ready pristine SiC surfaces are not commercially available. The results of this-programme should remedy this. In Phase I we will demonstrate a cost-effective, reproducible ex-situ sur ...