Chemical reactions of ductile metals during comminution.
Ductile metal powder chemical reactions during comminution in pure or oxygenated water
Arias, A.↗
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Preparation and compression molding of salt- like intermediate Pyrrone /BTDA-EG-DAB/.
Compression molding of molecular salt-like intermediate Pyrrone powders by two pressure method, noting volatiles elimination
Bell, V. L.↗
Intermediate phases in the lanthanum- and neodymium-cobalt systems.
Crystal structures of intermediate phases in La-Co and Nd-Co systems by powder X ray diffraction technique
Raman, A.↗
Thermal decomposition of yttrium-doped silver carbonate.
Yttrium effect on rate of thermal decomposition of silver carbonate powder and pressed pellets by isothermogravimetric analysis, examining water vapor, Co 60 gamma radiation and temperature effects
Rand, E.↗
Radiation stability of unfilled pyrrone moldings.
Unfilled Pyrrone prepared from powder into molded parts for flexural tests at elevated temperatures observed for stability to electron irradiation in air
Bell, V. L.↗
The lanthanum-rhodium system.
La-Rh system study by powder X ray diffraction, metallographic and differential thermal analysis, constructing equilibrium diagram and determining crystal structure data
Raman, A.↗
Moon - Electrical properties of the uppermost layers.
Electrical conductivity of uppermost lunar surface layers, indicating dry powdered rocks with frequency independent dielectric loss tangent
Strangway, D. W.↗
Early pre-Cambrian Onverwacht microstructures - Possibly the oldest fossils on earth?
Early Precambrian Onverwacht microstructures studied in petrographic thin sections and powdered preparations for possibility of oldest terrestrial fossils
Nagy, B.↗
Vibration damping of mechanical seals
Bellows seal filled with spherical powder reacts to vibration inputs by absorbing displacement energy through inertia and friction of the particle masses acting on the inside surface of the cylinders.
Hammond, R. R.↗
Grinding as an approach to the production of high-strength, dispersion-strengthened nickel-base alloys
Mechanical process produces dispersion-strengthened metal alloys. Power surface contamination during milling is removed by a cleaning method that involves heating thin shapes or partially-compacted milled powder blends in hydrogen to carefully controlled temperature schedules.
Orth, N. W.↗
Surface treatment for valve seats
Valve with embedded fine particles of diamond in the metal surface of the valve seat resists galling, corrosion, erosion, and cold welding. Diamond powder has an average particle diameter of 0.01 micron and is used with a standard fine diamond polishing compound.
Macglashan, W. F., Jr.↗
Self-lubricating fluorine shaft seal material
Lubricating film is produced by a reaction of fluorine with a composite of aluminum oxide and nickel powder. The rate of nickel fluoride generation is proportional to the rate at which the fluoride is rubbed off the surface, allowing the seal to operate with the lowest possible heating.
Munk, W. R.↗
Detonation hazards with ''safe'' industrial solvents
Sensitivities of various metal/halocarbon slurries to impact are given. Barium and lithium shavings show sensitivity with all of the halocarbons tested except methyl chloroform. Powdered aluminum, magnesium titanium, and beryllium show sensitivity with several halocarbons but generally require a higher level of initial energy.
Fingerhood, C. R.↗
Ultra-flexible biomedical electrodes and wires
Soft, flexible electrode conforms to body contour during body motion. It is fabricated from an elastomer impregnated with a conductive powder which can be configured into any required shape, including a wire shape to connect the electrode directly to an electrical instrument or to a conventional metallic wire.
Rositano, S. A.↗
Simple bonding technique for high-temperature ceramic coatings
Coatings, consisting of zirconia powder bonded with orthophosphoric acid and a small amount of hydrofluoric acid, are hard, strong, and refractory, resist thermal shock, and provide good thermal protection. After the aqueous coating is applied to a metallic surface, only a 600 deg F cure is required before service.
Accountius, O. E.↗
Advanced fuel cell catalysts Status report, 10 Aug. - 10 Nov. 1969
Advanced fuel cell catalysts prepared, including gold copper alloys and silver powders
Bocciarelli, C. V.↗
Moon - Optical properties of Apollo 11 samples
Optical properties of lunar powder samples from Tranquility Base
Briggs, F.↗
Development and qualification of the Apollo sea dye marker
Performance of Apollo sea dye marking powder
Bricker, R. W.↗