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Rapid Fabrication of Carbide Matrix/Carbon Fiber Composites
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Date added: 09/01/2007 |
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The objective of the current work was to develop a process for rapid fabrication of highly refractory, fiber-reinforced CMCs. |
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Coating Thermoelectric Devices to Suppress Sublimation
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Date added: 09/01/2007 |
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This concept has been specifically tailored for use with skutterudite (SED) antimonides. It involves the application of a thin, continuous film on the surface of SED thermoelectric elements. |
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Nanorod-Based Fast-Response Pressure-Sensitive Paints
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Date added: 09/01/2007 |
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True dynamic pressure and temperature measurements from pressure-sensitive paints (PSP) and thermographic phosphors have been elusive because of both the dynamic response to the fluctuating air pressure and difficulty applying these coatings to test articles. This proposed research will develop a revolutionary concept in the fabrication of PSPs, using the emerging technology of nanorods and nano-engineered materials. |
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Norbornene-Based Polymer Electrolytes for Lithium Cells
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Date added: 07/02/2007 |
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As part of our continuing efforts to develop advanced solid-sate lithium-based rechargeable cells, we have identified a promising single-ion conducting, solid polymer electrolyte that should lead to the successful operation of long-life rechargeable lithium cells at ambient temperatures. |
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Water-Free Proton-Conducting Membranes for Fuel Cells
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Date added: 07/02/2007 |
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The linear polymer, poly-4-vinylpyridine, has been quaternized to yield bisulfate and acid phosphate salts. Mechanically stable membranes have been prepared from poly-4-vinylpyridinebisulfate (P4VPBS). The proton conductivity has been measured and the suitability of such membranes for fuel cells has been demonstrated. This type of "poly salt" is a model electrolyte system for high temperature fuel cell applications. |
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Making Single-Source Precursors of Ternary Semiconductors
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Date added: 07/02/2007 |
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In our new procedure we take non-specialized reagents, which are commercially available from any chemical supplier and then react them together in a one-pot
type procedure, which affords our desired ternary SSP. |
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Glass/BNNT Composite for Sealing Solid Oxide Fuel Cells
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Date added: 06/01/2007 |
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A method has been developed to improve the mechanical properties of barium calcium alumino silicate glass that is used as a sealant for planar solid oxide fuel cells. Glass composites reinforced with boron nitride nanotubes (BNNT) showed great improvements in fracture strength and fracture toughness. For example, addition of a small amount, 4 weight percent, of BNNT to glass increased its strength and fracture toughness by 90 and 35%, respectively. |
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Spray CVD for Making Solar-Cell Absorber Layers
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Date added: 06/01/2007 |
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Spray CVD has become an advancing technique where a room-temperature precursor solution is ultrasonically nebulized, and is swept into a two-zone, hot-wall reactor |
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Making Ternary Quantum Dots From Single-Source Precursors
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Date added: 06/01/2007 |
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In this invention disclosure we present a new methodology for the preparation of the QD's, based on our work with ultrasonic/non-ultrasonic injection spray pyrolysis of reagents for the preparation of polycrystalline semiconductors. |
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