Chemical and Physical Aspects of Mesophase Formation during Carbon- Carbon Processing

Abstract

Experimental work performed and to be discussed in this report includes (a) studies of mesophase formation in three coal tar pitches at near atmospheric and moderately high pressure, which included determination of molecular weight distribution, quinoline insoluble measurement and microscopic examination; (b) measurement of sound velocity of phenanthrene up to 101 MPa (15,000 psi) and coal tar pitch at one atmosphere and calculation of adiabatic compressibilities; (c) measurement of viscosity of naphthalene, phenanthrene and 277-15V pitch up to 101 MPa using a falling needle viscometer; and (d) measurement of thermal diffusivity and conductivity of coal tar pitches in the as-received as well as partially pyrolyzed condition.

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Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1981
Accession Number
ADA098797

Entities

People

  • J. J. Gebhardt

Organizations

  • General Electric

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aromatic Compounds
  • Carbon Carbon Composites
  • Chemistry
  • Climate Change
  • Complex Mixtures
  • Critical Temperature
  • Energy
  • Heat Energy
  • Heat Transfer
  • Materials
  • Measurement
  • Melting Point
  • Specific Heat
  • Tars
  • Thermal Conductivity
  • Thermal Diffusivity
  • Transport Properties

Fields of Study

  • Environmental science

Readers

  • Analytical Chemistry
  • Materials Science and Engineering.
  • Reinforced Composite Materials