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Two major opportunities are outlined in the proposed Phase II work. The first opportunity is the demonstration of doped ZnO bulk crystal growth with specific electrical properties. The second opportunity is the growth of nitride heterostructures on thesesubstrates. High quality, doped ZnO bulk substrates of 50mm diameter will be made possible with Cermet's proven crystal growth technology. The gro ...

Programs such as Airborne Laser and Space-Based Laser are in need of highly mass efficient structural materials to achieve system performance targets. This naturally leads to graphite fiber reinforced polymers for many system components. For someapplications, such as cryogen storage vessels, these materials are subject to micro cracking under little or no structural loading. New materials with ...

We propose to develop a prototype suite of recursive partitioning (RP) methodologies to provide advanced warning of failure, malfunction and/or performance degradation for Airborne Laser Program subsystems in service. Through better monitoring and analysisof the status of its systems, prediction of equipment life remaining can be made and corrective action taken to enhance the availability of the ...

72853-Ultrafast (sub-nanosecond), ultrahigh spatial resolution (sub-micron), and highly efficient scintillator detectors are required for many time-resolved energetic photon imaging and detection applications. However, current scintillator screens only can achieve spatial resolutions in the range of tens microns, response times in the range from hundreds nanoseconds to tens microsecond, and poor ...

Developments of multi-color FPA's are important for use in missile defense systems (such as GMD and THAAD) applications. Key to meeting these system requirements is development of multi-color HgCdTe focal plane arrays with high pixel uniformity, reducedreadout noise, improved resolution, and higher temperature of operation, to reduce cost and volume of these sensors and seekers.Magnolia Optical Te ...

This proposal is aimed at demonstrating the applicability of a method for data-based, online, real-time monitoring of machine health state and predicting imminent failures. The data driven prognostic system will be based on a new, general state-space basedapproach to parameter tracking in dynamical systems. This method is applicable to systems where the parameters drift at a slower rate than the o ...

The team of Physical Sciences Inc. (PSI) and Ohio State University (OSU) proposes to develop and test a novel method for electrical production of singlet molecular oxygen for application to an atomic iodine transfer laser. OSU has developed a supersonic,low pressure discharge and applied it to flows of nitrogen with efficient excitation of the gas. They propose to use this method that tailors th ...

Maintenance prognostics is concerned with the prediction of an abnormal operation (fault) within a system's component. The fault can be due to a breakdown of a part within the component, lack of syncronization internally or with other components, and soforth. Furthermore, being notified that a failure will occur when it is too late to prevent the failure is generally not of value. Thus, a progn ...

Cermet, in collaboration with researchers at Georgia Institute of Technology, proposes to implement a lattice matched III-Nitride technology using existing substrates. The implementation of a lattice matched substrate promises to produce near dislocationfree III-Nitrides for the first time while the use of an existing substrate technology dramatically lowers development cost and reduces the devel ...

Silicon has long been the semiconductor of choice for high-voltage power electronic applications. Recently, SiC has attracted attention because SiC is projected to have better performance than silicon. [1] SiC power switching devices have yet to becommercialized, largely due to SiC crystal defects, most notably the device-killing micropipe defect, which does not permit high total current parts t ...