Award Data

ACX proposes to develop durable and reliable conformal geometry actuator packages. These packages will have the ability to operate as linear actuators for motion control applications as well as to conform to structures with curved surfaces for applications requiring induced strain actuation. These packages provide a protective skin offering electrical isolation, and provide a means for integration ...

AN APPROACH IS BEING INVESTIGATED FOR THE FLUORINATION OF DIAMOND THIN FILMS FOR TRIBOLOGICAL APPLICATIONS. THE APPROACH USES LOW PRESSURES OF F AND/OR CFX FREE RADICALS. TO DEMONSTRATE THE FEASIBILITY OF THIS APPROACH, DATA IS BEING COLLECTED ON: FLUORINATION KINETICS, THE COMPOSITION AND STRUCTURE OF THE SURFACE AND NEAR SURFACE LAYERS, THE EFFECTS OF TEMPERATURE ON THE FLUORINATION PROCESS, AND ...

ADVANCES IN SEMICONDUCTOR TECHNOLOGY HAVE RESULTED IN VAST NEW TECHNOLOGICAL CAPABILITIES AND HAVE AFFECTED EVERY ASPECT OF MODERN LIFE. ONE SUCH APPLICATION WHERE ADVANCES IN SEMICONDUCTOR MATERIALS CAN HAVE A SIGNIFICANT IMPACT ON SPACE EXPLORATION IS UV DETECTORS. THE IDEAL UV DETECTOR WOULD BE A SOLID STATE DEVICE WITH HIGH RESPONSITIVITY TO UV LIGHT AND NEGLIGIBLE RESPONSITIVITY TO VISIBLE LI ...

Silicon avalanche photodiodes are among the most sensitive optical detectors available today. It 11as been shown that large area APDs are potentially an excellent alternative to photomultiplier tubes (PMTs) in applications such as LIDAR, nuclear medicine, physics research and nuclear radiation measurement instrumentation. They can offer improved performance based on their compact size, solid state ...

A CLOSED CYCLE CRYOCOOLER IS BEING INVESTIGATED USING AN APPROACH THAT COMBINES ELECTROCHEMICAL COMPRESSOR AND EJECTOR TECHNOLOGIES. AN ELECTROCHEMICALLY INACTIVE CRYOGEN IS BEING USED IN A UNIQUE TERNARY REFRIGERANT. LIKEOTHER ELECTROCHEMICALLY-DRIVEN REFRIGERATION SYSTEMS UNDER DEVELOPMENT, THIS SYSTEM HAS NO MOVING PARTS. THE SYSTEM ISDESIGNED TO REACH A TEMPERATURE OF 77K, BUT A SIMPLE MODIFIC ...

Phase I will reduce the weight, size, and cost of pulsed power electronic equipment by achieving compact integration of the solid-state semiconductors. A dramatic reduction in waste heat and thermal management problems will be effected, thus eliminating conventional heat sinks, blower fans, etc. Phase I will also offer special advantages in space-based equipment where size and weight are at a prem ...

New power semiconductor device performance is limited by cooling because high heat-flux cooling systems have not matched their increased power density. Therefore, real designs rarely achieve device ratings. American Superconductor (ASC) demonstrated CryoPower+, which cools a variety of power MOSFET topologies by direct immersion in coolants from 77-300K, with boiling where appropriate. CryoPower ( ...

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ORMASIL-DIAMOND composite coatings, made via the sol-gel method have great promise for thermal management applications. They are easy to apply, have excellent stability and can be cured at low temperatures. Recent work has provided the knowledge to tailor ORMASIL properties for this application. An unsolved problem is how to obtain a strong chemical bond to the diamond surface. A novel ultrasonic ...