Award Data

A SELF CONTAINED LIQUEFIER IS BEING DEVELOPED TO RECONDENSE THE VAPOR BOILOFF FROM THE CRYOGENIC LIQUID STORAGE DEWARS OF LONG LIFE SPACE POWER SYSTEMS. THE PROOF-OF-PRINCIPLE LIQUEFIER FOR THE CHALLENGING DUTY OF HELIUM LIQUEFACTION IS A SMALL LOW CAPACITY (10 LITRES LIQUID HELIUM PER DAY) UNCOMPLICATED SYSTEM HAVING A LONG MAINTENANCE FREE OPERATING LIFE AND LOW INITIAL COST WITH MODEST AUXILIAR ...

RECENT TECHNOLOGY ADVANCES HAVE DEMONSTRATED THE POSSIBILITY OF FABRICATING SATISFACTORY ELECTRONIC DIAMOND FILMS IN REASONABLE QUANTITIES. AS A CONSEQUENCE OF THIS, OLDER DESIGNS ARE BEING REWORKED AND NEW DEVICE STRUCTURES DEVELOPED THAT TAKE ADVANTAGE OF THE SEMICONDUCTING DIAMOND. HOWEVER, IT HAS BEEN THE EXPERIENCE OF THE SEMICONDUCTING COMMUNITY THAT DESIGN FEATURES SUITABLE FOR ONE SEMICOND ...

POLYMERIC OR CERAMIC INSULATORS CONVENTIONALLY ARE BEING USED IN HIGH VOLTAGE PULSED SYSTEMS. NEW APPROACHES ARE NEEDED THAT WOULD REDUCE INSULATORS RING THICKNESSES AND INCREASE CORRESPONDING GRADING RINGS FLASHOVER VOLTAGE. SUCH AN APPROACH WOULD POSSESS IN COMPARISON TO CONVENTIONAL INSULATORS: HIGHER SURFACE FLASHOVER FIELD STRENGTH; SMALLER PHYSICAL DIMENSIONS FOR EQUIVALENT VOLTAGE HOLDOFF; ...

THE DEVELOPMENT OF HIGH POWER, LOW IMPEDANCE, LIGHTWEIGHT ENERGY STORAGE TRANSMISSION LINES FOR PULSE-POWER APPLICATIONS IS CRUCIAL FORSMALLER, LIGHTWEIGHT, SPACE-BASED, PULSE-POWER SYSTEMS. DEVELOPMENT OF HIGH DIELECTRIC ENERGY STORAGE LINE TECHNOLOGY WOULD GREATLY REDUCETHE SIZE, WEIGHT, AND COMPLEXITY OF PULSE POWER SYSTEMS UTILIZING THESE TYPES OF COMPONENTS. EFFICIENT TRANSPORT OF 400KV, 100K ...

THE NEXT GENERATION OF HIGH POWER, HIGH FREQUENCY ELECTRONIC DEVICE TECHNOLOGY WILL BE BASED ON WIDE BANDGAP SEMICONDUCTOR MATERIALS SUCH AS SIC, GAN AND DIAMOND. OF THESE, SILICON CARBIDE IS THE MOST PROMISING MATERIAL FOR NEAR TERM APPLICATIONS, SINCE ITS PROCESSING SHARES MANY COMMON FEATURES WITH WELL-ESTABLISHED SILICON PROCESSING. TECHNOLOGY HAS BEEN DEMONSTRATED FOR PRODUCING OHMIC AND SCHO ...

HIGH POWER AND HIGH TEMPERATURE ELECTRONIC DEVICES ARE IMPORTANT IN BOTH DEFENSE AND COMMERCIAL SYSTEMS. BETA SILICON CARBIDE IS AN EXCELLENT CANDIDATE SEMICONDUCTOR MATERIAL FOR DEMANDING APPLICATIONS DUE TO ITS HIGH BREAKDOWN VOLTAGE, RELATIVELY LARGE BAND GAP, HIGH THERMAL CONDUCTIVITY AND HIGH MELTING POINT. USE OF SILICON CARBIDE THIN FILMS IS HAMPERED, HOWEVER, BY THE INABILITY TO REPRODUCIB ...

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2Phase II will develop an advanced dynamically-balanced "isolation interferometer" whose mirror motion is decoupled from external vibrations. Such an interferometer can be employed to make an FT-IR instrument which is immune to vibration and is permanently aligned. Advanced Fuel Research,Inc./On-line Technologies, Inc. will test both the plane mirror and corner cube designs, choose the best one an ...

Tunable, acousto-optic filters (AOTF) for operation in the UV-VIS-IR spectral ranges are important elements in the design of advanced sensors for target acquisition, and discrimination. Their small size, random-access wavelength selection, rapid scan rates, and all solid-state construction with no moving parts, provide an attractive alternative to monochromators and filter wheels, for many applica ...

In Phase I, Electro Energy will design and develop a sealed, electrically rechargeable Nickel-Metal Hydride Battery for Air Force and Space Power Applications. Utilizing the Metal Hydride electrode, which stores hydrogen for reaction, results in a battery that operates at lower pressure and is more compact than gaseous nickel-hydrogen batteries and contains no cadmium which presents toxic and disp ...