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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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Brazing process uses vapor-deposited titanium and an aluminum-zirconium-silicon alloy to prevent formation of brittle intermetallic compounds in stainless steel and aluminum bonding. Joints formed by this process maintain their high strength, corrosion resistance, and hermetic sealing properties.
Copper-based quaternary alloys of the solid solution type is used for vacuum furnace brazing of large stainless steel components at a maximum temperature of 1975 deg F. The alloy has high bonding strength and good ductility over a temperature range extending from the cryogenic region to approximately 800 deg F.
Tungsten-hafnium-carbon alloy has tensile strengths of 88,200 psi at 3000 deg F and 62,500 psi at 3500 deg F. Possible industrial applications for this alloy would include electrical components such as switches and spark plugs, die materials for die casting steels, and heating elements.
Wrought aluminum alloy has improved low temperature notch toughness and weldability. This alloy can be mill-fabricated to plate and sheet without difficulty. Post-weld aging improves weld ductility and strength properties. A typical treatment is 8 hours at 225 deg F plus 16 hours at 300 deg F.
Post-buckling strength of pressurized cylinder with axial load and bending moment
Metal fatigue-crack propogation and residual static strength of stainless steel - fracture mechanics
Kinetics of mechanical strength of oriented and stressed solids based on statistical absolute reaction rate theory
Machining and grinding of ultrahigh-strength steels and stainless steel alloys
Deformation and microscopic element orientation to determine medium mechanical strength
Plasma sprayed alumina particle size and purity, and stainless steel surface roughness effects on coating-substrate bond strength
Uniaxial and biaxial strength characteristics and mechanical properties of metallic sheet materials at cryogenic temperatures
Strength of human vertebrae under various static and dynamic loads
Filament and whisker reinforcement of low density, high strength, high modulus composites - metallic and ceramic layers alternated in multilaminar composites
Compressive strength of glass-epoxy multilayer filament wound cylinders loaded in axial compression
Vapor deposition of pyrolytic graphite thin films on liquid metal substrates for producing high strength filaments
Oscillator strength of CN violet system from shock layer by time-of-flight scanning spectrometer
Absolute band and oscillator strengths and absolute Einstein A coefficients for C-2 Swan system
Strength of overlay of granular material on Moon estimated from Ranger VII photographs, showing fairly steep slopes covered with dust