Nickel cadmium plaques and plates
Chemical analysis of active materials of nickel cadmium battery plates
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Chemical analysis of active materials of nickel cadmium battery plates
Research and development, test techniques, and new technology for nickel cadmium batteries, silver zinc cells, and energy storage
Qualitative comparison of oxidation resistance of nickel-aluminum alloys with additions of chromium, silicon, and titanium at high temperatures
Acceptance tests of nickel cadmium spacecraft cells with auxiliary electrodes for charge control
Determining effect of process variables on sintered nickel plaques and impregnated plates
Evaluation of sealed nickel cadmium cells, with auxiliary electrodes, operating in synchronous orbit regime
Separator materials, ceramic to metal seals, cell plate polarization and impregnation processes, and plaque sintering data for study of variables in manufacture of nickel cadmium cells
Acceptance tests of 100 ampere-hour nickel-cadmium cells for inclusion in life cycle program of secondary spacecraft cells
Formation time, specific gravity of solution, and overcharge amount associated with electrochemical cleaning or formation operation in manufacturing nickel cadmium cells
Thermomechanical processing of nickel alloy in relation to yield and creep rupture strength
measurement of temperature distribution in operating nickel-cadmium electric batteries
Cyclic furnace and high velocity oxidation of aluminide-coated high strength nickel alloy (B-1900)
Gold and Aquadag contacts with single crystal nickel oxide surfaces, determining I-V characteristics
Hydrogen adsorption behavior on polycrystalline nickel surfaces, using electron impact desorption flash filament with gas phase and ion spectrometer and vapor deposition
Solid state deformation welding process, friction welding, has been developed for joining precipitation hardened nickel-base alloys and other gamma prime-strengthened materials which heretofore have been virtually unweldable. Method requires rotation of one of the parts to be welded, but where applicable, it is an ideal process for high volume production jobs.
The stress corrosion cracking resistance of several high strength ferrous and nickel base alloys has been determined in a sodium chloride solution. Results indicate that under these test conditions Multiphase MP35N, Unitemp L605, Inconel 718, Carpenter 20Cb and 20Cb-3 are highly resistant to stress corrosion cracking. AISI 410 and 431 stainless steels, 18 Ni maraging steel (250 grade) and AISI 4130 steel are susceptible to stress corrosion cracking under some conditions.
The resistance of thin TD-NiCr sheet to cyclic deformation was compared with that of TD-Ni and a conventional nickel-chromium alloy. Strains were determined by a calibration technique which combines room-temperature strain gage and deflection measurements with high-temperature deflection measurements. Analyses of the cyclic tests using measured tensile and creep-rupture data indicated that the TD-NiCr and NiCr alloy specimens failed by a cyclic creep mechanism. The TD-Ni specimens, on the other hand, failed by a fatigue mechanism.
An investigation was conducted to determine whether a nickel - 2-volume-percent alumina dispersion-strengthened material with a fine, uniformly distributed dispersoid could be produced, which was equivalent in short time tensile strength to commercially available thoriated sheet materials. Comminution and blending with a modified triple stirrer attritor and a hydrogen and vacuum precleaning treatment prior to consolidation were used. A product with a fine dispersoid with an average particle size of 0.04 micron and an interparticle spacing of 0.7 micron was achieved. This material has a 1093 C (2000 F) short time tensile strength of 117 MN/sq m (16 900 psi).