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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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Method for recovering powdered silver-palladium braze alloy from an acrylic spray binder and rubber masking adhesive used in spray brazing is devised. The process involves agitation and dissolution of masking materials and recovery of suspended precious metal particles on a filter.
Ceramic composite thermal insulation comprised of alumina-silica fibers, pigmentary potassium titanate, and asbestos fibers, bonded with a colloidal silica sol has improved insulating capabilities to both radiant and convective heat. Gelation of the colloidal silica sol prevents binder migration.
Outgassing rate measurements on stored composite fuels of polybutadiene acrylic acid and polyurethane binders
Network density of filled composites, nitroso compound reactions with hydrocarbons, cryogenic bladder bag materials, thermoplastic rubbers as binders, and other polymer research studies
Solid propellant engineering, binder curing reactions, ATS engine development, pintle nozzle thrust vector control, and low pressure combustion
Stress-strain distribution in elastomers, and chemical and physical properties of prepolymers, rigid urethane foam, and thermoplastic rubbers for composite solid propellant binders
Mechanical properties of continuous carbon filament/graphite binder composite including tensile, compressure, flexure, fatigue and shear properties
Rapid visual and simple quantitative tests indicate the degree of cure of particular epoxy resin binders in prepreg stock. It is possible that these tests may be extended to a number of different epoxy formulations.
Special technique for applying silicide coatings to refractory metal alloys improves their high-temperature protective capability. Refractory metal powders mixed with a baked-out organic binder and sintered in a vacuum produces a porous alloy layer on the surface. Exposing the layer to hot silicon converts it to a silicide.
General procedure and molding sand composition for preparing molds usable for casting variety of alloys are developed. Molds are prepared from mixture of sand, sodium silicate binder, and organic liquid ester. Castings of radiographic quality are produced from various alloys.
Nonflammable paper is made from fibers of chrysotile asbestos, beta-glass fibers, glass microfibers, and a little nonflammable organic binder. It does not propagate flame in an atmosphere of 16.5-psig oxygen, and it is resistant to rot and mold, making it acceptable as wrapping material and for stored documents.
Bonded solid lubricant coatings of calcium fluoride and binder for high temperature stability
Oxidizer particle size and binder type effects on nonacoustic combustion instability of solid propellants
Composite solid propellants surface structure and profile characteristics burning with various oxidizers and polyurethane binder by scanning electron microscopy
Solid propellant extinguishment by rapid depressurization, investigating motor configuration effect, binder, burning rate catalyst, oxidizer, metal loading and exhaust pressure levels
Ceramic coating, consisting of graphite, enameler's clay, and algin binder, applied to materials prior to salt bath brazing facilitates brazing process and results in superior joints. Alternate coating materials and their various proportions are given.
Chemical and mechanical properties and synthesis of 4-vinylbiphenyl-isoprene ABA block copolymers for permeation and propellant binder studies
Binder stabilized zinc oxide pigmented coating for spacecraft thermal control