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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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A combination gravity and manually powered rapid billet loader reduces the time required for transferring hot metal billets from a heating furnace to an extrusion press. Positioned between the furnace and extrusion press, this loader is a simple slide-delivery device.
Electron emission test of uranium carbide compatibility with tungsten alloys for nuclear fuel elements
Appropriate brazing metals and temperatures facilitate the welding or brazing of base metals with tungsten inert gas equipment. The highest quality bond is obtained when TIG welding is performed in an inert atmosphere.
Iridium as high temperature protective coating for unalloyed niobium and tantalum
Effects of hydrostatic pressure on mechanical properties of tungsten, tungsten-thorium alloys, and iron-carbon alloys
Electric resistivity measurements to determine solubility and diffusion of oxygen in tantalum, columbium, and alloys
Corrosion resistance of Nb and Ta tubing alloys to boiling K
Pressure dependence of tensile stress-strain behavior of recrystallized powder metallurgy tungsten at environmental pressures of 11 kilobars
Physical and mechanical properties of rhenium, technetium, hafnium, noble metals, and related alloys reviewed in terms of availability and costs
Change in thickness and mechanical properties of iridium coating on molybdenum determined after heat treatment
Turbogenerator material compatibility tests of niobium and tantalum alloys with boiling potassium
High temperature protective coatings of iridium on tantalum, niobium, molybdenum, and tungsten
Niobium and tantalum alloys compatibility with boiling potassium tested for applications to turboelectric space power system
Fibering of metal oxides in Nb and Ta matrices prepared by extrusion and powder metallurgy, discussing mechanical properties
Work function variation with Cs layer coverage on W, Mo, Re and Ni substrates, using field electron microscopes
Hydrogen effects on molybdenum, tungsten, columbium and tantalum, studying solubility, permeability, diffusion and phase diagrams
Thermodynamic behavior of interstitial elements in Mo, W, Nb, and Ta
New glasses are used as protective coatings on metals and alloys susceptible to oxidation at high temperatures in oxidizing atmospheres. Glasses are stable and solid at temperatures up to 1000 deg C, adhere well to metal surfaces, and are usable for metals with broad range of expansion coefficients.