Award Data

THE MATERIALS USED IN THIN-FILM PHOTOVOLTAIC CELLS AND MANY OTHER SEMICONDUCTOR DEVICES ARE FREQUENTLY GROWN USING CHEMICAL VAPOR DEPOSITION (CVD) OR OTHER VAPOR-BASED PROCESSES. MANY OF THE PROCESS GASES USED, FOR EXAMPLE, ARSINE, PHOSPHINE, AMMONIA, DIBORANE, AND SILANE, ARE HIGHLY REACTIVE. CONTAMINATION, CHEMICAL OR PARTICULATE, OF THESE REACTIVE GASES SERIOUSLY INTERFERES WITH DEVICE PERFORMA ...

ALUMINUM COATED GLASS FIBERS HAVE FOUND BROAD BASED USE AS RADAR CHAFF, HOWEVER, EXISTING METHODS OF MANUFACTURE ARE GENERALLY HIGH COST AND DO NOT OPTIMIZE ADHESION BETWEEN METAL AND GLASS WHICH MAY LEAD TO PERFORMANCE LOSS DURING HANDLING OR PROCESSING. BY UTILIZING A HIGH SPEED, LOW CAPITAL COST PROCESS SUCH AS CHEMICAL VAPOR DEPOSITION (CVD) IN COMBINATION WITH NOVEL INTERLAYER TECHNOLOGY, A P ...

THE OBJECTIVE OF THIS EFFORT IS TO PROVIDE A REVIEW AND ANALYSIS OF EXISTING AIRCRAFT MAINTENANCE SHELTER STRUCTURES AND MATERIALS AND MOBILE HEATING/COOLING SYSTEMS. ONE ATTRACTIVE APPROACH IS TO REFINE PRIOR WORK ON THE LOCARCH SHELTER PROGRAM IN A TEAMING EFFORT WITH LOCKHEED GEORGIA COMPANY, THE ORIGINAL DEVELOPER. SHOULD NO EXISTING SHELTER HARDWARE PROVIDE SATISFACTORY PERFORMANCE, THE EFFOR ...

THE RECENT DISCOVERY OF HIGH TEMPERATURE SUPERCONDUCTING MATERIALS HAS LED TO RENEWED INTEREST IN THE APPLICATION OF SUPERCONDUCTIVITY. THE NEW CERAMIC SUPERCONDUCTORS OFFER THE OPPORTUNITY OF USING THESE MATERIALS AS DETECTORS OF INFRARED RADIATION MORE CONVENIENTLY THAT THE OLDER, CLASSICAL SUPERCONDUCTORS. THE LARGER ENERGY GAP OF THESE NEW HIGH CRITICAL TEMPERATURE (T(C)) MATERIALS ALSO PROVID ...

IT HAS BEEN DETERMINED IN BENCH SCALE AND PILOT SCALE COAL LIQUEFACTION EXPERIMENTS THAT A PRETREATMENT AT MODERATE TEMPERATURES PRIOR TO LIQUEFACTION CAN SUBSTANTIALLY IMPROVELIQUEFACTION YIELDS AND QUALITY. HOWEVER, THERE IS LITTLE BASIC UNDERSTANDING OF THE PROCESSES THAT GIVE RISE TO THE OBSERVED PHENOMENA. THIS PROJECT SUGGESTS THE IDENTIFICATION AND OPTIMIZATION OF THE PRELIQUEFACTION CHEMIS ...

THE EFFICIENT DEVELOPMENT OF ADVANCED AIRCRAFT CONCEPTS OR INTRODUCTION OF NEW FUELS WILL REQUIRE INCREASED MECHANISTIC UNDERSTANDING AND MODELS TO PREDICT THERMAL STABILITY IN ORDER TO ELIMINATE THE REQUIREMENT FOR EXTENSIVE EMPIRICAL TESTING. THE PROPOSAL IS FOR A COMBINED EXPERIMENTAL, ANALYTICAL, AND MODELING PROGRAM TO DEVELOP A MECHANISTIC UNDERSTANDING AND MODEL OF FUEL THERMAL STABILITY. T ...

THE RECENT DISCOVERY OF PEROVSKITE-LIKE COPPER-OXIDE SUPERCONDUCTORS WITH TRANSITION TEMPERATURES ABOVE LIQUID NITROGEN TEMPERATURES HAS LED TO RENEWED INTEREST IN THE APPLICATION OF SUPERCONDUCTIVITY. THESE NEW YBACUO (YBA[2]CU[3[O[7-X]) MATERIALS OFFER THE OPPORTUNITY TO USE THESE MATERIALS AS DETECTORS MORE CONVENIENTLY THAN THE "CLASSICAL" SUPERCONDUCTORS. THE LARGER ENERGY GAP OF THESE NEW HI ...

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THE COMPLEXITY OF THE NEXT-GENERATION FAULT-TOLERANT ELECTRONIC SYSTEM DESIGN TASKS WILL REQUIRE INTERACTIVE ACCESS TO THE RELIABILITYPREDICTION TOOLS IN ORDER TO ACHIEVE THE DESIRED RELIABILITY GOALS. THIS PROPOSAL ADDRESSES THE INTEGRATION OF THE AFHRL DEVELOPED MISSION RELIABILITY MODEL (MIREM) AND THE AVAILABLE CIRCUIT DESIGN PROGRAMS IN AN ENGINEERING WORKSTATION ENVIRONMENT. THE PROPOSED EFF ...