Development of Manufacturing Process for Large-Diameter Composite Monofilaments by Pyrolysis of Resin-Impregnated Carbon-Fiber Bundles.

Abstract

Large-diameter carbon-carbon-composite monofilaments were produced from the pyrolysis of organic precursor resins reinforced with high-strength carbon fibers. The mechanical properties were measured before and after pyrolysis and the results were correlated with the properties of the constituents. The composite resulting from the combination of Thornel 75 and GW-173 resin precursor produced the highest tensile strength. The importance of matching strain-to-failure of fibers and matrix to obtain all the potential reinforcement of fibers is discussed. Methods are described to reduce, within the carbonaceous matrix, pyrolysis flaws which tend to reduce the composite strength. Preliminary studies are described which demonstrated the feasibility of fiber-matrix copyrolysis to alleviate matrix cracking and provide an improved matrix-fiber interfacial bonding. jg p3

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
ADA303841

Entities

People

  • A. E. Vidoz
  • P. C. Pinoli
  • W. G. Bradshaw

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbon Carbon Composites
  • Carbon Fibers
  • Chemistry
  • Composite Materials
  • Electron Microscopy
  • Graphitic Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Working
  • Methanols
  • Modulus Of Elasticity
  • Plastics
  • Reinforced Plastics
  • Resins
  • Thermosetting Plastics

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials