The distribution of platinum and palladium metals in iron meteorites and in the metal phase of ordinary chondrites.
Platinum and palladium distribution in iron meteorites and ordinary chondrite metal phase spectrographically determined
CHONDRITE↗
SEARCH · Engineering Papers
Results for “METALLICITY”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Metal boot permits fabrication of hermetically sealed splices in metal sheathed instrumentation cables
Metal boot splices hard sheathed instrumentation cables used with high temperature strain gages and thermocouples. Silver brazing the conductors together, hermetically seals the splice. This boot is a highly reliable sealed splice which is equally effective at cryogenic temperatures, high temperatures, nuclear environments, and combinations of the above.
Chambers, G.↗
Development of fabrication process for metallic fibers of refractory metal alloys Six month progress report
Fabrication processes for producing refractory metal alloy wire
REFRACTORY ALLOY↗
The less common refractory metals - /Rhenium, hafnium, technetium, noble metals/
Physical and mechanical properties of rhenium, technetium, hafnium, noble metals, and related alloys reviewed in terms of availability and costs
Maltz, J.↗
A study of the adhesion of metals and non-metals in an ultra-high vacuum Final report, 12 Jun. 1965 - 1 Jul. 1966
Adhesive properties of metal, glass, ceramic, polymer, and mineral combinations in ultrahigh vacuum
Hehn, A.↗
The compatibility of refractory metals with liquid metals.
Compatibility of refractory metals with liquid Hg, Cs, K, Na and Li, noting resistance to corrosion
Harrison, R. W.↗
Galvanomagnetic investigation of the metal-non- metal transition in silicon.
Metal-nonmetal transition in n- and p-type Si from high magnetic field galvanometric measurements, noting abnormally large magnetoresistance accompanied by Hall coefficient increase
Bernard, W.↗
Reducing contact resistance at semiconductor to metal or aluminum to metal interfaces
Etchant containing chloroplatinous or chloroplatinic acid greatly reduces contact resistance between metallic surfaces. Etching results in a monolayer plating of platinum on the wafer surface, preventing oxide growth.
Keller, K. R.↗
Refractory Metal Alloys- Metallurgy and Technology, Proceedings of a Symposium on Metallurgy and Technology of Refractory Metals, Washington, D.C., April 25, 26, 1968.
Refractory metal alloys metallurgy and technology - Conference, Washington, D.C., April 1968
Begley, R. T.↗
Determination of weldability and elevated temperature stability of refractory metal alloys. 1 - Weldability of refractory metal alloys
Weldability and thermal stability of refractory metal alloys
Lessmann, G. G.↗
Determination of weldability and elevated temperature stability of refractory metal alloys. 3 - Effect of contamination level on weldability of refractory metal alloys
Effect of oxygen contamination on weldability of refractory metal alloys
Stoner, D. R.↗
Determination of weldability and elevated temperature stability of refractory metal alloys. 2 - Long-time temperature stability of refractory metal alloys
Long-time temperature stability of refractory metal alloys and weldability determinations
Gold, R. E.↗
Development of fabrication process for metallic fibers of refractory metal alloys Final report
Production of small diameter refractory metal alloy wires for superalloy reinforcement
Adams, F. R.↗
American Society for Metals, International Conference on the Strength of Metals and Alloys, 2nd, Pacific Grove, Calif., August 30-September 4, 1970, Proceedings. Volumes 1, 2 and 3
Strength of metals and alloys - Conference, Pacific Grove, California, August-September 1970
Source record↗
Metallic inclusions and metal particles in the Apollo 12 lunar soil
Apollo 12 lunar soil particles observation for reduced metal meteoritic inclusions, suggesting shock impact effects during meteoritic bombardment of moon
Goldstein, J. I.↗
Development of flame resistant metal and metal-glass blended structures
A description is given of the design and fabrication of candidate flame-resistant woven and knitted fabrics, tapes, webbings, and cords as replacements for those items used in the Apollo spacecraft which were previously made of nylon and polyester. Structures made from Chromel R metal fibers (74% Ni, 20% Cr, 2-1/2% Fe, 2-1/2% Al, 1/2% Si, 1/2% Mo), Beta glass fibers and high-temperature organic fibers such as PBI (polybenzimidazole) were developed and evaluated. The feasibility of improving the performance of selected fabrics by using CNR (carboxy nitroso rubber) or other nonflammable coatings were also investigated.
Coskren, R. J.↗
Glass-to-metal seals comprising relatively high expansion metals
A glass suitable for glass-to-metal seals that has a resistance to attack by moisture and a high coefficient of linear thermal expansion is introduced. Linear expansion covers the range from 12 to 14 x 10 to the minus 6 C between room temperature and 500 C. The glass is essentially composed of, by molar percent, about 9% of K2O, about 10% of Na2O, about 70% of SiO2, about 6% Al2O3, and about 5% of MgO.
Hirayama, C.↗
Some metal-graphite and metal-ceramic composites for use as high energy brake lining materials
Materials were studied as candidates for development as potential new aircraft brake lining materials. These families were (1) copper-graphite composites; (2) nickel-graphite composites; (3) copper - rare-earth-oxide (gadolinium oxide (Gd2O3) or lanthanum oxide (La2O3)) composites and copper - rare-earth-oxide (La2O3) - rare-earth-fluoride (lanthanum fluoride (LaF3)) composites; (4) nickel - rare-earth-oxide composites and nickel - rare-earth-oxide - rare-earth-fluoride composites. For comparison purposes, a currently used metal-ceramic composite was also studied. Results showed that the nickel-Gd2O3 and nickel-La2O3-LaF3 composites were comparable or superior in friction and wear performance to the currently used composite and therefore deserve to be considered for further development.
Bill, R. C.↗