THERMAL PROPERTIES OF ABLATIVE CHARS

Abstract

The objective of this program was to determine thermal conductivity, specific heat, thermal expansion and density to 4500F on well-defined samples of charred phenolic-carbon and phenolic-graphite ablators. Methods were to be established for characterizing chars of three phenolic carbon or phenolic graphite ablators from tested full scale hardware. Then methods for producing stable duplicates of three zones between 1200 and 4500F in each char were to be developed. Samples of each of these zones and the virgin ablator were to be produced for measurement of thermal conductivity, specific heat and thermal expansion by Battelle Memorial Institute. Properties parallel to and perpendicular to the laminate were to be determined from room temperature to 700F on virgin material and between 1200 and 4500F on chars. Properties for the unstable pyrolysis zone were to be derived by extrapolation guided by characterization and heat transport theory.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0675179

Entities

People

  • J. E. Cotton
  • Paul B. Kennedy
  • Robert J. Evans
  • T. J. Fabish
  • Wilson A. Clayton

Organizations

  • Boeing

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Body Weight
  • Crystal Structure
  • Enthalpy
  • Graphitic Materials
  • Heat Energy
  • Heat Transfer
  • Isotherms
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Test Methods
  • Thermal Conductivity
  • Thermal Properties
  • Thermodynamics

Readers

  • Reinforced Composite Materials