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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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Composition variations in nickel, iron, and cobalt octahedrites determined by electron probe X-ray analysis - meteoritic composition
Calorimetric evaluation of electroformed nickel solar concentrator
Solar absorptance and thermal emittance of copper, gold, nickel and silver as function of temperature
Class of nickel-base superalloys containing varying percentages of alloying elements have good workability and high strength at elevated temperatures /1500 to 2200 degrees F/.
Copper wire for electrical harnesses, when plated with both nickel and silver, resists galvanic corrosion and high temperatures while maintaining electrical properties and solderability.
Experiments performed under conditions found in nuclear reactor superheaters determine the corrosion rate of stainless steel and nickel alloys used in them. Electropolishing was the primary surface treatment before the corrosion test. Corrosion is determined by weight loss of specimens after defilming.
Cold working and aging prepares nickel alloys for coiling into springs with properties acceptable in a cryogenic environment.
Anodic treatment of titanium alloy enables electroplating of tightly adherent coatings of copper and nickel on the alloy. The alloy is treated in a solution of hydrofluoric and acetic acids, followed by the electroplating process.
Isothermal continuous flow calorimeter is designed to test a nickel-cadmium battery under numerous orbital conditions. This sensitive calorimeter collects cell data such as oxygen pressure and rate of heat generation, and calculates changes in enthalpy.
Chemical composition and mechanical properties of nickel maraging steel plate, forged, and weld wire materials for 260 inch diameter motor chamber and nozzle shell
Cross sections of inelastic scattering of neutrons by levels of iron, nickel, and niobium determined by spectra of gamma rays from decay of excited states
Geometric efficiency of electroformed paraboloidal nickel solar energy concentrator calculated from optical ray trace data
Nickel-iron spherules and glass from Aduelloul meteoritic crater
Thermal stability of high strength nickel alloys containing oxides prepared by powder metallurgy techniques
Modifying the chemistry of the NASA TAZ-8 alloy and utilizing vacuum melting techniques provides a high strength, workable nickel base superalloy with improved oxidation resistance for use up to 2200 degrees F.
Nickel base superalloy with improved stress rupture properties is used for jet aircraft turbine blades. This alloy is capable of maintaining its strength and its creep, oxidation, and thermal fatigue resistance at high temperature.
Tungsten fiber-reinforced nickel superalloy combines the strength of refractory metals with the oxidation resistance of superalloys. Knowledge of the relationship between fabrication technique, matrix compositions and fiber sizes minimized fiber-matrix reaction. Potential application includes high temperature turbine components.
Nickel base alloy with high strength, ductility, good impact and oxidation resistance, microstructural stability, workability potential, and the ability to show improved strength and ductility when directly solidified has recently been developed for high temperature applications.