STRUCTURAL CHANGES IN PYROLYTIC GRAPHITE AT ELEVATED TEMPERATURES

Abstract

Gross and unit cell dimensional changes of pyrolytic graphite were measured as a function of heat-treatment times between 15 seconds and 10 minutes at temperatures from 2600 to 3000 C. These changes were also measured for 4-hour heat treatments in the same temperature range. No incubation period for these changes was noted above 2600 C. The effects of these changes in rocket nozzle and reentry configurations are discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1963
Accession Number
AD0427346

Entities

People

  • E. H. Zehms
  • J. H. Richardson

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Annealing
  • Gas Turbine Nozzles
  • Graphitic Materials
  • Heat Energy
  • Heat Treatment
  • High Temperature
  • Jet Propulsion
  • Materials
  • Materials Science
  • Measurement
  • Nozzles
  • Rocket Nozzles
  • Space Systems
  • Thermal Expansion
  • United States
  • X Rays

Readers

  • Combustion and Flow Dynamics.
  • Mathematics or Statistics
  • Reinforced Composite Materials