JTA Graphite Composite Manufacturing Methods

Abstract

Manufacturing techniques were developed for handling, firing, and hot-pressing graphite composite materials in 57-in, o.d, by 40-in. highgraphite molds. Consumable wooden supports were used to achieve almost perfect float-molding conditions. Forming parameters were established for manufacture of Grade JTA plates 30 in. by 15 in. by 3 in. thick, and solid billets 29-in. o.d. by 15 in. high. The solid billet weighed 1090 pounds and is believed to be the largest ceramic billet ever hot-pressed. Hollow cylinders up to 14-in. o.d. were also hot-pressed. Cracking was eliminated in large Grade JTA composites by removing the pitch binder from the formulation. Limited progress was achieved in pressing Grade JTA composites into small leading edge shapes.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1969
Accession Number
AD0850562

Entities

People

  • Robert A. Reuter

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Composite Materials
  • Conductivity
  • Contracts
  • Export Controls
  • Fabrication
  • Flexural Strength
  • Government (Foreign)
  • High Temperature
  • Hot Pressing
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Working
  • Physical Properties
  • Standards
  • Tensile Strength
  • Thermal Expansion

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials