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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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At least 1,225 records · Page 68

All sources NASA NTRS DOE OSTI

NASA NTRS1969

Preparation and characterization of slush hydrogen and nitrogen gels

Slush hydrogen and nitrogen gels for rocket propellants

Daney, D. E.↗

NASA NTRS1969

An experimental feasibility study for the preparation of thermo-oxidatively stable Pyrrone laminates

Synthesis of Pyrrone laminates from sulfone dianhydride

Burns, E. A.↗

NASA NTRS1969

Automated Input Data Preparation for NASTRAN

Computer programs for structural analysis

Cook, W. L.↗

NASA NTRS1968

EXAMETNET data preparation and guidance procedures manual

Data reduction of instruction manual for meteorological reports

Source record↗

NASA NTRS1969

Develop methods for preparation of pure copper /2/ fluoride and develop analytical techniques for determination of impurities Final report

Ultrapure copper fluoride synthesis, analytical techniques, and production of one kilogram for cathode material

Lundquist, J. R.↗

NASA NTRS1969

The preparation and properties of vapor- deposited epitaxial InAs sub 1-x P sub x using arsine and phosphine.

Vapor phase epitaxial production of indium arsenic phosphide crystalline layers, discussing electron mobilities, electrical resistivities and doping

Clough, R. B.↗

NASA NTRS1969

Preparation and compression molding of salt- like intermediate Pyrrone /BTDA-EG-DAB/.

Compression molding of molecular salt-like intermediate Pyrrone powders by two pressure method, noting volatiles elimination

Bell, V. L.↗

NASA NTRS1969

The separation of corrosion and stress effects in stress corrosion - The critical role of surface preparation.

Corrosion and stress effects separation in stress corrosion of Al-Zn-Mg-Cu alloy, considering machined surface finishing role

Brummer, S. B.↗

NASA NTRS1969

Preparation and properties of unsupported positive coefficient thin thermistor films.

Thin film thermistors heat-separated from graphite substrate to achieve positive temperature resistance coefficient via argon heating and oxygen cooling

Curran, R. E.↗

NASA NTRS1966

Preparation of supplier inspection plan

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Source record↗

NASA NTRS1970

Preparation of magnetic ferrofluids in alternative carrier liquids

Ferrofluids are made by grinding magnetic particles together with a polar surfactant and a nonpolar solvent. The surfactant is adsorbed on the particle surfaces and acts as a coupling agent between the particles and the solvent.

Rosensweig, R. E.↗

NASA NTRS1970

Preparation of fine-particles at cryogenic temperatures

Flash freezing process yields gelling agent for use at cryogenic temperatures. Vaporized material, diluted with an inert gas, is injected below the surface of an agitated cryogenic liquid. This method disperses particles of chlorine trifluoride in liquid oxygen difluoride.

Globus, H.↗

NASA NTRS1970

Difunctional polyisobutylene prepared by polymerization of monomer on molecular sieve

Process yields difunctional isobutylene polymers ranging in molecular weight from 1150 to 3600. These polymers have the potential for copolymerization and cross-linking with other monomers to form elastomeric materials.

Midler, J. A., Jr.↗

NASA NTRS1970

Preparation of highly fluorinated diols containing ether linkages.

Hydroxy-terminated perfluoroethers and polyurethane resins derived from ethers have outstanding chemical resistance and good thermal properties. They can be used as potting compounds, coatings, and seals. The hydroxy-terminated ethers serve as intermediates in the synthesis of highly fluorinated elastomers and adhesives.

Rochow, S. E.↗

NASA NTRS1968