IRREVERSIBLE DIMENSIONAL CHANGES AND THE INITIAL GRAPHITIZATION KINETICS IN ANNEALED PYROLYTIC GRAPHITE

Abstract

The irreversible dimensional changes in the 'a' and 'c' directions in pyrolytic graphite were studied as a function of time (up to 4 hours) and temperature (2500 to 2800 C). The change in the 'c' lattice parameter was also studied. Activation energies for the initial stages of dewrinkling and graphitization have been obtained.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0684912

Entities

People

  • Frederick P. Meyer
  • R. N. Katz

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Annealing
  • Boundaries
  • Contractors
  • Energy
  • Graphitic Materials
  • Heat Energy
  • Heat Of Activation
  • Heat Treatment
  • Information Processing
  • Jet Propulsion
  • Kinetics
  • Materials
  • Mechanics
  • Physics
  • Residual Stress
  • X Rays

Readers

  • Materials Science and Engineering.