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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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Fuel cell studies on reversibility of organic reactions, oxygen dissolution reaction, and organic adsorption on zinc electrodes of silver zinc batteries
Preparation process for silver-activated zinc sulfide phosphor thin films with high proton sensitivity
Separator materials characterization tests for silver-zinc batteries
Photolytic reactions mechanism in photochromic glass with silver halide crystals formed during glass manufacture, discussing properties and applications
Neurological differences in spinal projections of animals subjected to cordotomies compared with human material, using selective silver impregnation technique
Instrumentation setup measures resistivity values between .000003 and 100,000 ohm-cm and Hall values between 0.2 and 10 billion cc/coulomb, with an absolute error of less than 5 percent. Results of measurement are given for 8 electrical brush specimens and pure silver.
Performance tests on heat sterilizable and impact resistant silver zinc prototype batteries
Description of electrical equipment and system for purification of waste water by producing silver ions for bacterial control
Uniform and nonuniform size and energy glass bead and silver alloy and aluminum powder particles effects on sediment volume and viscosity in propylene oxide and mineral oil
NASA/GSFC workshop on battery separators, seals, test techniques, and research and development of nickel cadmium and silver zinc batteries
Research and development, test techniques, and new technology for nickel cadmium batteries, silver zinc cells, and energy storage
Numerical analysis of solvent reorganization energy and method for prevention of dendritic crystal growth and zinc electrode surface area decrease in silver batteries
Seebeck coefficients in metallic alloys using iron doped silver palladium alloys between 4.2 and 520 K
Heat sterilizable remotely activated silver zinc battery for energy source of planetary lander capsule
Commercially available sonic welding system and a specially-designed tip bonds aluminum foil interconnects to titanium-silver solar cell contacts.
Gold-platinum solar cell contact is developed which does not exhibit chemical reactivity of titanium or porosity of silver. This contact offers excellent ohmic characteristics and stability in humid air.
The performance and costs of an electrochemical catalyst as compared to a pure platinum catalyst is evaluated. The catalysts are used to reduce oxygen in low temperature alkaline fuel cells. The electrochemical catalyst is composed of silver and platinum and is dispersed in a resinous inert binder to provide a cell electrode. The results indicate the electrochemical catalyst is superior structurally to the platinum one for high current density operation, and is at least as active as the platinum catalyst in other operations.
Plasma cleaning experiments were completed on hydrocarbon contaminant films, experiments were initiated to determine a satisfactory technique for depositing contaminant films, and an experiment was conducted to determine whether specimens are being thermally cleaned rather than plasma cleaned. Results of plasma cleaning experiments on hydrocarbon contaminant films showed that the optical properties of mirrors and gratings could be satisfactorily restored. Results on fused silica optical flats were inconclusive because of the insensitivity of measurement techniques to the contaminant films. White thermal control surfaces, degraded by the hydrocarbon contaminant film, could not be restored by oxygen plasma exposure. The reflectance of silvered FEP Teflon thermal control surfaces could be restored by plasma cleaning. Experiments with a silicone contaminant indicated that it could not be easily polymerized onto surfaces with ultraviolet radiation. Results of the thermal cleaning experiment showed that the polymerized hydrocarbon contaminant film could not be removed by heating in vacuum to a temperature in excess of that expected during plasma cleaning.