DEVELOPMENT OF MANUFACTURING METHODS FOR PRODUCING PYROLYTIC GRAPHITE IN VARIOUS SHAPES AND STRUCTURES

Abstract

The objective of the program was the development of a manufacturing technology that will enable the prediction and specification of manufacturing process parameters for producing, with a high degree of reliability, pyrolytic graphites in specific sizes, shapes, and quality beyond the present state of the art and suitable for re-entry vehicles and rocket nozzles. The investigations made during the course of this program were in the following areas; mandrel graphite selection and preparation for deposition, mandrel design, effects of gas composition, effects of process parameters (temperature, pressure, flow), boron analysis, delamination control in the deposits, and controlled graphitization of the pyrolytic graphites. A complete process specification for producing 10 deg. half angle, 1/4 in. nose radius, 1.00 in. stagnation thickness and 0.180 in. wall thickness nose cones is presented.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1967
Accession Number
AD0824697

Entities

People

  • Thomas J. Clark

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Fluid Dynamics
  • Geometry
  • Mandrels
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Optical Materials
  • Strain Gages

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Metallurgy
  • Reinforced Composite Materials