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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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Traveling wire electrode on electrical discharge machining /EDM/ equipment reduces the time requirements for precision cutting. This device enables cutting with a minimum of lost material and without inducing stress beyond that inherent in the material. The use of wire increases accuracy and enables tighter tolerances to be maintained.
Technique improves the service life of fuel cell electrodes. The welding is done before the metallic sinter is activated by depositing finely divided metal within the sinter structure from a solution with corrosion inhibiting ions. The activator solution flows through the porous sinter while attached to the backup plate.
Lithium hydride cell uses vanadium diaphragm electrode as a hydrogen diffuser. Vanadium is high in hydrogen gas solubility and permeability, is least sensitive to adverse surface effects, maintains good mechanical strength in hydrogen atmospheres, and appears to be compatible with all alkali-halide electrolytes and lithium metals.
Interstitial compounds of transition elements prepared for improving oxygen electrode in alkaline hydrox fuel cell
Acceptance tests of auxiliary electrode nickel cadmium secondary spacecraft cells
Improved zinc electrodes for electrochemical cells
Collisionless theory of plasma sheath near infinite planar electrodes, developing new sheath model incorporating microscopic boundary conditions
Propellant injection through electrodes effect on potential distribution in MPD arc
Potentials of zero charge of gold, silver and mercury electrodes as affected by cations and respective metal ion interaction
180 degree domain formation in ferroelectric crystals unaffected by presence of shorted electrodes due to surface layer properties differing from bulk
Space-charge and potential distributions calculated for region between two plane electrodes of single collision model
Properties of electrolytes, separators, electrodes, and deposits in silver-zinc cells
Temperature and cross-sectional shape measurements of electric arc column moving along parallel electrodes in magnetic field
Reaction kinetics in oxidation and reduction of alkaline silver electrode
Determination of effective electrolytic surface area of sintered and foil silver electrodes subjected to oxidation at various current densities in ammoniacal medium
Characterization of recombination and control electrodes for spacecraft nickel cadmium cells
Oxygen signal and recombination electrodes developed for charge control of spacecraft nickel cadmium batteries
Polarization in porous oxygen electrodes