Preparation of thin self-supporting beryllium foils.
Thin self-supporting beryllium foils preparation for use as atomic and molecular ion beam targets
BERYLLIUM↗
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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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Isotopically pure magnesium isotope-24 is prepared from magnesium-24 oxide
Apparatus is used to prepare isotopically pure magnesium isotope-24, suitable for use in neutron scattering and polarization experiments. The apparatus permits thermal reduction of magnesium-24 oxide with aluminum and calcium oxide, and subsequent vaporization of the product metal in vacuum. It uses a resistance-heated furnace tube and cap assembly.
Chellew, N. R.↗
Effects of surface preparation on quality of aluminum alloy weldments
Study of surface preparations and surface contamination effects on the welding of 2014 aluminum involves several methods of surface analysis to identify surface properties conducive to weld defects. These methods are radioactive evaporation, spectral reflectance mass spectroscopy, gas chromatography and spark emission spectroscopy.
Kizer, D.↗
Weld preparation tool for pipes and tubing
Improved scarfing tool consists of a mount-table, roller-guided assembly. It converts a conventional routing machine for relatively precise field preparation of pipes for welding.
Wallace, E. D.↗
Systems safety criteria for use in preparation or review of procedures
Systems safety checklists for use in preparation and review of launch, operating, test, checkout, maintenance, handling, calibration, and ordnance procedures for space vehicles
Farish, P. T.↗
Definition of surface - Properties of metallic surfaces prepared in an ultra-vacuum
Properties of metallic surfaces prepared in ultrahigh vacuums
Boutry, G. A.↗
Effect of hypoxia on myocardium in heart-lung preparation
Effect of hypoxia on myocardium in starling heart lung preparations ventilated with mixtures of oxygen, nitrogen, and carbon dioxide
Nejad, N. S.↗
Effect of Blood Ph and CO2 Tension on the Performance of the Heart-lung Preparation
Blood pH and carbon dioxide tension effect on performance of heart-lung preparation
Nejad, N. S.↗
Mechanical properties of polyethylene terephthalate under selected conditions and methods of preparation Semiannual progress report, period ending 31 Oct. 1967
Mechanical properties of polyethylene terephthalate under selected conditions and methods of preparation
Armediades, C. D.↗
Preparation of filament wound microtape research specimens
Preparation of filament wound glass microtape for forming thin walled tubes for containing cryogenic fluids
Source record↗
Preparation of a stabilized Nb sub 3 Sn-based superconducting tape by a diffusion process.
Diffusion process for preparing niobium stannide superconducting tape stabilized to any level, discussing reaction time, temperature and contamination
Autler, S. H.↗
Effect of hypoxia on myocardium in heart-lung preparation.
Hypoxia effect on myocardium in heart-lung preparations by relating stroke work and left arterial pressure
Nejad, N. S.↗
Preparation of electron probe microanalyzer standards using a rapid quench method.
Quantitative electron probe microanalyzer standards preparation apparatus, discussing metal alloys rapid quenching and X ray flux data
Goldstein, J. I.↗
Preparation of thorium magnesium-zinc reduction
Magnesium-zinc reduction of thorium dioxide is used for the preparation of thorium metal. Potential economic advantages of this technique include use of relatively inexpensive reagents for the metal and flux phases, and production of metal of acceptable quality in good yield.
Hariharan, A. V.↗
Preparation of high purity copper fluoride by fluorinating copper hydroxyfluoride
Copper fluoride containing no more than 50 ppm of any contaminating element was prepared by the fluorination of copper hydroxyfluoride. The impurity content was obtained by spark source mass spectrometry. High purity copper fluoride is needed as a cathode material for high energy density batteries.
King, R. B.↗
Effects of sample preparation on photomicrographs of cadmium sulfide thin-film solar cells
Effects of preparation techniques on thin film CdS solar cells
Bozek, J. M.↗
Automatic apparatus for sampling and preparing gases for mass spectral analysis in studies of carbon isotope fractionation during methane metabolism.
Automatic equipment for sampling and preparing gases by dual column gas chromatography for subsequent mass spectral analysis of carbon isotopes during methane metabolism
Oyama, V. I.↗
Preparation of vitreous materials in the form of well-defined hollow cylinders.
Method for preparation of vitreous materials in hollow cylindrical form, considering chemical homogeneity, porosity and geometrical shape
Gatos, H. C.↗