SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Plating process welds, bonds, and seals refractory metals without weakening or changing the structure of the base metals. A metal halide compound in the vapor phase is decomposed to deposit filler metal on the base metal. The resulting bond is a true metal-to-metal bond.
Manufacturing modifications, and glass filler additions for dip resin used in honeycomb structures
Filler and matrix composite materials for use in silver-zinc battery separators
Mechanical properties of stryene-butadiene rubber glass bead composites, and theoretical model on isothermal volume dilatation and stress-strain relationship in filler concentration
Linear equations for longitudinal-tranverse bending of nonsymmetrical sandwich plates with rigid filler, allowing for thermal stresses
Inorganic fillers and pressure effects on films for separators for heat sterilizable silver zinc battery
Test apparatus for studying convective heat transfer between metallic contacts with interstitial fillers
Calcium fluoride-barium fluoride coating on ball bearing cages or as fillers in porous bearing cages lubricate bearings successfully for operations in air at temperatures of 1200 to 1500 degrees F.
Argon added to helium during gas tungsten arc cover-pass welding in the horizontal position results in a better controlled wider bead width, increased arc stability, and reduction in heat input. Adequate filler material wetness and penetration pass coverage is possible with only one pass.
Filling honeycomb matrix with deaerated paste filler
Carbon and graphite research and development, with detailed data on Santa Maria coke as filler material
Rare earth trifluorides have potential use as lubricating fillers for mechanical carbons and as coatings on metallic substrates. Friction experiments show that they are effective in reducing metallic wear.
Gas-tungsten arc welding with a filler of Rene-41 produces strong welded joints. When Rene-41 is used, resistance to strain-age cracking is greatly increased by post-weld solution annealing in an inert atmosphere. Mechanical properties of Rene-41 and Hastelloy-W are compared.
Electrically conductive plastics fabrication and applications limitations, discussing plastic matrix materials loaded with various conductive fillers
Teflon crosshatched ablation patterns elimination by grooving or glass filler addition
Liners for nitric and hydrofluoric acid tanks show no sign of deterioration after 18 months of continuous use. Each side of each edge of the polypropylene sheets is chamfered, and sheets are welded from both sides with polypropylene filler rod and a special hot-air welding torch.
Metal spinning forms combustion chamber sections and nozzle sections, arc welding joints sections to form rocket motor. Hastelloy-X as filler results in slightly weaker weld than the TD nickel weld, but permits formation of larger rocket motor than is otherwise possible.
Space shuttle systems structural joints thermal control, discussing contact conductance with and without interstitial fillers