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Results for “char”

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 91 records · Page 5

All sources NASA NTRS DOE OSTI

NASA NTRS1967

Oxidation of a thin film of a carbonaceous char at pressures below 10 super -4 torr.

Heterogeneous reactions of molecular oxygen with thin film of carbonaceous char at low pressures

Benson, S. W.↗

NASA NTRS1968

Visible and near-infrared emittance of ablation chars and carbon.

Visible and near IR spectral reflectance and emittance at high temperature of ablation chars, carbon and graphite

Spitzer, C. R.↗

NASA NTRS1968

The effect of oxygen depletion in gas-phase chemical reactions on the surface recession of charring ablators.

Oxygen depletion effect in chemical reactions between pyrolysis gases and air stream on surface recession of charring ablators

Dickey, R. R.↗

NASA NTRS1967

Charring ablation performance in turbulent flow. Volume 1 - Analytical and experimental studies

Semiempirical correlation techniques for predicting charring ablation performance of Apollo heat shield in turbulent flow

Crowder, P. A.↗

NASA NTRS1967

Charring ablation performance in turbulent flow. Volume 2 - Computer program

FORTRAN 4 program for predicting charring ablation performance of Apollo heat shield in turbulent flow

Colony, R.↗

NASA NTRS1969

Rocket engine evaluation of erosion and char as functions of fabric orientation for silica-reinforced nozzle materials

Rocket engine evaluation of erosion and char as functions of fabric orientation for silica reinforced nozzle materials

Peterson, D. A.↗

NASA NTRS1969

Multidimensional gas flow through permeable char layers and its effects on ablation

Pressure fields and multidimensional gas flow in permeable char layers and effects on ablation

Bush, H. G.↗

NASA NTRS1969

Modification of the one-dimensional REKAP program to allow for charring in three material layers Final report

Modified one-dimensional reaction kinetics program to allow for charring in three material layers of rocket nozzle throat insert case

Price, R. E.↗

NASA NTRS1968

Further studies of the coupled chemically reacting boundary layer and charring ablator. Part 1 - Summary Final report

Computer program development for charring ablative materials, chemically reacting laminar boundary layers, and turbulent boundary layer initiation

Anderson, L. W.↗

NASA NTRS1968

A study of the simulation of the flight performance of charring ablators in ground facilities

Simulated charring ablator performance during reentry phase

Tompkins, S. S.↗

NASA NTRS1969

Simulation of pyrolysis-gas flow through a char layer during ablation

Thermochemical data from simulated pyrolysis gas flow through ablating char layer

Clark, R. K.↗

NASA NTRS1969

Comparison of the performance of a charring ablator under transient and constant combined convective and radiative heating.

Charring phenolic nylon ablator material pyrolysis and surface recession for cyclic and constant combined convective and radiative heating

Lundell, J. H.↗

NASA NTRS1969

Effects of pyrolysis-gas chemical reactions on surface recession of charring ablators.

Oxygen depletion effect in chemical reactions between pyrolysis gases and air stream on surface recession of charring ablators

Dickey, R. R.↗

NASA NTRS1970

Polyimide polymers provide higher char yield for graphitic structures

Technique for manufacture of graphite composites uses high-char-forming processable polyimide resin systems to produce the graphitic matrix. Only three cyclic steps are required to yield a 99.7 percent graphite product.

Burns, E. A.↗

NASA NTRS1968