An Experimental Study of a Carbon-Phenolic Ablation Material.

Abstract

The experimental results from a ground-test program are presented for a carbon-phenolic heat-shield material designated Narmco 4028. The tests were conducted in supersonic streams of air, nitrogen, and air-nitrogen mixtures at model stagnation pressures from 0.07 to 11 atmospheres (1 atmosphere equals 101.325 kN/m2) and stagnation enthalpies from 1100 to 11000 Btu/lbm (2.55 to 25.50 MJ/kg). Mechanical char removal of the material did not occur in the nitrogen tests but did occur in air and air-nitrogen mixtures at pressures as low as 2.4 atmospheres depending upon the oxygen mass fraction in the stream. The experimental results were compared with predictions from an ablation computer program.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
ADA309608

Entities

People

  • Kenneth Sutton

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aging (Materials)
  • Carbon Fibers
  • Composite Materials
  • Computer Programs
  • Free Stream
  • Graphitic Materials
  • Heat Energy
  • High Pressure
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Measurement
  • Photographs
  • Stagnation Pressure
  • Thermal Conductivity
  • Thermal Properties
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Fluid Dynamics.
  • Reinforced Composite Materials

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow