Hall coefficient of tantalum carbide as function of carbon content
Hall coefficient of tantalum carbide as function of carbon content
TANTALUM CARBIDE↗
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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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Development of dispersion strengthened tantalum base alloy Quarterly progress report no. 6, Feb. 20 - May 19, 1965
Dispersion strengthened tantalum base alloys for use in advanced spacecraft power systems - metallurgy
TANTALUM ALLOY↗
Ultrahigh-vacuum creep behavior of columbium and tantalum alloys at 2000 deg and 2200 deg F for times greater than 1000 hours
Ultrahigh vacuum creep properties of niobium and tantalum alloys at high temperatures
NIOBIUM ALLOY↗
Electrophoretic deposition of gradated oxidation resistant coatings on tantalum-10 tungsten alloy
Material selection and electrophoretic deposition studies of high temperature oxidation resistant coatings on tantalum-10 tungsten alloy
ELECTROPHORESIS↗
Development of dispersion strengthened tantalum base alloy Seventh quarterly report, May 20 - Aug. 20, 1965
Phase identification, morphology, and evaluation of dispersion strengthened tantalum base alloys
TANTALUM ALLOY↗
Compatibility of columbium and tantalum tubing alloys with refluxing potassium
Corrosion resistance of niobium and tantalum tubing alloys to refluxing potassium
POTASSIUM↗
Development of dispersion strengthened tantalum base alloy Eighth quarterly progress report, 20 Aug. - 20 Nov. 1965
Phase identification and morphology studies of dispersion hardened tantalum base alloys for advanced space power uses
DISPERSION HARDENING↗
Oxidation and Embrittlement in Silicide-coated Columbium-alloy and Aluminide-coated Tantalum- Alloy Sheet
Oxidation and embrittlement in silicide coated niobium alloy and aluminide coated tantalum alloy sheet
NIOBIUM ALLOY↗
Influence of time on vacuum vaporization rate and surface compositional stability of tantalum carbide - hafnium carbide solid solutions above 2000 deg C
Influence of time on vacuum vaporization rate and surface composition stability of tantalum carbide and hafnium carbide solid solutions above 2000 deg C
VAPORIZATION↗
Compatibility of tantalum, columbium, and their alloys with hydrogen in presence of temperature gradient
Compatibility of tantalum and niobium with hydrogen in presence of temperature gradient
NIOBIUM↗
Three-stage hardening in tantalum single crystals.
Three-stage hardening in tantalum single crystals deformed in tension over limited range of orientations, temperatures and strain rates
BODY CENTERED CUBIC /BCC/ CRYSTAL↗
Ultrahigh-vacuum creep behavior of columbium and tantalum alloys at 2000 deg and 2200 deg F for times greater than 1000 hours.
Ultrahigh-vacuum creep behavior of columbium and tantalum alloys at high temperature and over long period
CREEP RESISTANCE↗
Combustion reactions of the refractory metals tantalum and molybdenum.
High temperature combustion of tantalum and molybdenum in oxygen gas compared with experiments in carbon dioxide, water, argon and mixtures of these gases
TANTALUM↗
Development of dispersion strengthened tantalum base alloy Quarterly progress report, 20 Nov. 1965 - 20 Feb. 1966
Welding, aging, and oxygen contamination effects on dispersion strengthened tantalum base alloys
TANTALUM ALLOY↗
Development of protective coatings for tantalum T-22 alloy Final summary report
Oxidation resistance tests of protective coatings for tantalum alloy
METAL COATING↗
Contamination exposures of columbium and tantalum alloy specimens Final report, 25 Feb. 1965 - 15 Jun. 1966
Contamination exposures of columbium, zirconium, and tantalum alloys under conditions of low pressures and high temperatures
OXIDATION↗
Dislocation structures in slightly strained tungsten and tungsten-rhenium and tungsten-tantalum alloys
Deformation structures of polycrystalline slightly strained tungsten, tungsten rhenium, and tungsten tantalum alloys examined by transmission electron microscopy
DEFORMATION↗
Development of Coatings for Tantalum Alloy Nozzle Vanes
A group of silicide coatings developed for the T222 tantalum-base alloy have afforded over 600 hours of protection at 1600 and 2400 F during cyclic exposure in air. These coatings were applied in two steps. A modifier alloy was applied by slurry techniques and was sintered in vacuum prior to siliciding by pack cementation in argon. Application of the modifier alloy by pack cementation was found to be much less effective. The addition of titanium and vanadium to molybdenum and tungsten yielded beneficial modifier alloys, whereas the addition of chromium showed no improvement. After siliciding, the 15Ti- 35W-15V-35Mo modifier alloy exhibited the best performance; one sample survived 1064 hours of oxidation at 2400 F. This same coating was the only coating to reproducibly provide 600 hours of protection at both 1600 and 2400 F; in the second and third of three experiments, involving oxidation of three to five specimens at each temperature in each experiment, no failures were observed in 600 hours of testing. The slurry coatings were also shown to protect the Cb752 and D43 columbium-base alloys.
PROTECTIVE COATING↗