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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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PbTe-W and PbTe-Ta, SnTe-Ta equilibria, nonmagnetic bonding of pure PbTe and 3N powder to sintered pellets, and design and construction of furnace and lapping machine
Fabrication methods of porous refractory ionizers from spherical powders of iridium-tungsten, and rhenium-tungsten
Electrochemical behavior of fiber plaque materials compared with nickel powder sinter plaques in study to develop cadmium electrodes for sealed secondary batteries
Twenty kw solar powdered pulsed plasma engine system, operating life, reliability, payload delivery capability, etc
Reflection spectra of rock powders compared with Stratoscope II spectrum of Mare Tranquilitatis
A mix of borax powder and a chlorinated anhydrous polyester resin yields a plastic composition that is fire-retardant, yields a minimum of toxic gases when heated, and exhibits high thermal insulating properties. This composition can be used as a coating or can be converted into laminated or cast shapes.
Improved chlorate candle is used as a solid, portable source of oxygen in emergency situations. It contains sodium chlorate, iron, barium peroxide, and glass mixed in powdered form. The oxygen evolves from the decomposition of the sodium chlorate when an ignition pellet is electrically initiated.
Process produces continuous internal channel systems on a repeatable basis in 2014-T6 aluminum. Standard machining forms the initial channel, which is filled with tungsten carbide powder. TIG machine fusion welding completes formation of the channel. Chem-mill techniques enlarge it to the desired size.
Modified gloved enclosure is used to fill a capsule with a mixture of americium and beryllium radioactive powders to seal weld the opening, and to test it for leaks. It contains a horizontal partition, vortex mixer, mounting press, welder, test vessel, and radiation shielding to prevent surface contamination.
Raney nickel study indicates that its improved storage life is due to gaseous hydrogen and that the mechanism of its ignitions is catalytic and due to chemisorbed hydrogen atoms. It shows that reacted Raney nickel powder can be reactivated and can introduce multiple ignitions in a hydrogen gas stream.
Americium 241 serves as a suitable radioisotope /gamma ray source/ and exposure probe for radiographic inspection of brazed aluminum joints in areas of limited accessibility. The powdered isotope is contained in a sealed capsule mounted at the end of a spring-loaded pushrod in the probe assembly.
Thermoluminescence dosimeter technique measures thermal-neutron fluence by encapsulating lithium flouride phosphor powder and exposing it to a neutron environment. The capsule is heated in a dosimeter reader, which results in light emission proportional to the neutron fluence.
Low work function cathode configurations and nickel encapsulated powder for withstanding intensive ion bombardment
Powder and slurry preparation, and sheet and conductive line fabrication for laminated ferrite memory array
Spectral reflectance of silicate rock powders, Jupiter atmosphere measurements, and visible and near-infrared spectrum data for analyzing lunar surface
Thermal stability of high strength nickel alloys containing oxides prepared by powder metallurgy techniques
Arc heating process for preparation of dispersion strengthened nickel base alloy powder
Fibering of oxides by hot deformation in metal matrices of unalloyed columbium or tantalum, preparing composites by powder metallurgy