Surveyor I and Luna IX Pictures and the Lunar Soil
Lunar soil composition determined to be porous fine-grain moderately cohesive rock powder, from Surveyor I and Luna IX pictures
PHOTOGRAPH INTERPRETATION↗
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Results for “Powder”
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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A readily available material for the simulation of lunar optical properties.
Lunar optical properties simulated with commercial Portland cement and maroon and black coloring powders, noting blue-green color index discrepancy
LUNAR PHOTOGRAPHY↗
Development and use of a bidirectional spectroreflectometer.
Bidirectional spectroreflectometer for reflectance of solid and powder samples
SURFACE PROPERTY↗
Composite cesium ionizers with enhanced lifetime characteristics.
Porous cesium ionizer with improved lifetime obtained by adding secondary tantalum to tungsten powder
CESIUM ION↗
Strength of sintered specimens containing hollow glass microspheres.
Bending strength dependence on porosity of sintered powdered glass beam
SINTERING↗
What you should know about cryogenic insulations.
High insulating effectiveness required of cryogenic insulations, evaluating insulation capacities of powders, fibers, foams, honeycomb, etc
MATERIAL TESTING↗
A double-guarded cold-plate thermal- conductivity apparatus.
Double-guarded cold plate apparatus for measuring thermal conductivity of multilayer insulations, powders, fibers and foams
THERMAL INSULATION↗
Computer program calculates and plots surface area and pore size distribution data
Computer program calculates surface area and pore size distribution of powders, metals, ceramics, and catalysts, and prints and plots the desired data directly. Surface area calculations are based on the gas adsorption technique of Brunauer, Emmett, and Teller, and pore size distribution calculations are based on the gas adsorption technique of Pierce.
Halpert, G.↗
Thermal conductivity and dielectric constant of silicate materials
Report on the thermal conductivity and dielectric constant of nonmetallic materials evaluates the mechanisms of heat transfer in evacuated silicate powders and establishes the complex dielectric constant of these materials. Experimental measurements and results are related to postulated lunar surface materials.
Simon, I.↗
Grain growth inhibitor for porous tungsten materials
Boron, either uncombined or combined with nitrogen or carbon added to tungsten powder prior to processing, effectively inhibits grain growth. The tungsten material is stable up to 1800 degrees C.
Todd, H. H.↗
Fabrication and characterization of hot- pressed tantalum carbide
Microstructure and chemistry of hot pressed powder compacts of tantalum carbide
Becher, P. F.↗
Effects of hydrostatic pressure on the mechanical behavior of body centered cubic refractory metals and alloys Interim technical report
Pressure dependence of tensile stress-strain behavior of recrystallized powder metallurgy tungsten at environmental pressures of 11 kilobars
Das, G.↗
Thermal conductivity and dielectric constant of silicate materials, 1 April 1965 - 31 August 1966
Heat transfer, and dielectric constants measurements in evacuated silicate powders
Simon, I.↗
Experimental and theoretical investigation of the ablative performance of five phenolic-nylon-based materials
Theoretical analysis of five composite ablation materials with various percentages of phenolic resin, powdered nylon, and silica
Mc Lain, A. G.↗
The release of hydrogen on ball milling chromium in water
Hydrogen release in ball milling of high purity, coarse chromium powder in water
Arias, A.↗
Spacecraft rocket engine chamber insulation materials Interim report, 1 Jul. 1967 - 30 Jun. 1968
Spacecraft rocket engine chamber insulation materials - silica fabric/molybdenum foil layer, carbon fabric/tantalum foil, and fine tungsten powder in hollow zirconia microsphere matrix
Carlson, L. W.↗
Lunar surface - Composition inferred from optical properties.
Lunar surface composition inferred from optical properties, comparing lunar crust with rock and meteorite powders characteristics
Hapke, B.↗