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New developments in materials and components create a need for more effective controllers for flexible, lightweight, high-performance systems in DoD, industry, civil infrastructure, and space applications. Included are automated loading and material handling systems, tank flexible gun barrels, vibration and oscillation in automobiles, bridges, and overhead cranes. The control problems associated ...

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THE ADVANTAGES OF THERMOPLASTIC MATRIX COMPOSITES FOR MANUFACTURING LOW-COST CMPONENTS HAVE YET TO BE REALIZED. AN IMPORTANT FACTOR LIMITING THERMOPLASTIC COMPOSITES IS THE LACK OF LOW-COST METHOD FOR PRODUCING HIGH-QUALITY PREPREGS AND PREFORMS. A METHOD OF PRODUCING THESE MATERIALS THAT IS COMPATIBLE WITH COMMONLY USED COMPOSITE FABRICATION TECHNIQUES SUCH AS FILAMENT WINDING, PULTRUSION, AND PR ...

40640 November 12, 1996 Adherent Technologies, Inc. Scintillators have been used for over 90 years to detect ionizing radiation, but solid organic scintillator, commonly used in physics experimentation, suffer from errors caused by pulse pileup. To minimize this problem, this project will examine a new class of polymeric materials which also offer the po ...

Electrostatic discharge control is vital for the health of any spacecraft. Exposure to charged particles in a space enviroment can lead to large charge differences across the craft, that, if no mechanism for controlled discharge is present, can destroy mission critical equipment. The preferred way of ESD control is to use conducting thermal control coatings. These coatings combine the ability to r ...

Diamondlike multinetwork and network-crystalline atomic-scale composite coatings constitute a new class of materials with unique properties including high adhesion to virtually any substrate (including materials, crystalline and glass dielectrics, plastics), excellant thermal and diffusion barrier properties, good hardness, high elasticity and flexibility, very high thermal shock resistance, extre ...

ADVANCED BATTERIES BASED ON LITHIUM METAL SULFIDE CELL TECHNOLOGY ARE UNDER CONSIDERATION FOR APPLICATIONS SUCH AS THE ELECTRIC VEHICLE,PRIMARILY DUE TO THEIR HIGH ENERGY DENSITY CAPABILITIES. HOWEVER, CURRENTLY AVAILABLE MATERIALS LIMIT THE RELIABILITY OF THIS BATTERY TECHNOLOGY FOR LONG-TERM USE. IN PARTICULAR, THE CONTAINMENT OF THE ELECTROLYTE BY AN INERT SEPARATOR MATERIAL IS A DESIGN-LIMITIN ...

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THE HIGH TEMPERATURE STRENGTH OF CERAMIC MATERIALS MAKE THEM ATTRACTIVE FOR USE IN HIGH EFFICIENCY COMBUSTION ENGINES. UNFORTUNATELY, THE POOR FRICTION AND WEAR PROPERTIES OF COMMON CERAMICS OFTEN PRECLUDE THEIR USE IN ROTATING AND SLIDING COMPONENTS. SOLID STATE LUBRICANTS ARE A POTENTIAL SOLUTION TO THIS TRIBOLOGICAL PROBLEM BUT THEY ARE USUALLY INCOMPATIBLE WITH OXIDE-BASED CERAMICS. A TITANIUM ...