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Journal of Materials Science

, Volume 26, Issue 18, pp 4977–4984 | Cite as

Effect of magnesium on the composition, microstructure and mechanical properties of carbon fibres

  • J. C. Viala
  • P. Fortier
  • G. Claveyrolas
  • H. Vincent
  • J. Bouix
Papers

Abstract

This work was undertaken in order to provide more detailed information on the chemical and mechanical behaviour of carbon fibres during the elaboration of graphite-magnesium composite materials. For this purpose, PAN-based T300, pitch-based P55 and P100 carbon fibres were isothermally heat treated, at temperatures ranging from 450 to 700 °C, under a saturated vapour pressure of magnesium. The composition, microstructure and tensile strength of the resulting samples were characterized by chemical and electron probe microanalysis, Raman spectrometry, X-ray diffraction and mechanical test of single filaments. From the results obtained, it has been concluded that highly graphitized fibres such as pitch-based P55 or P100 are not affected by long-time annealing in the presence of magnesium vapour, whereas impure and disorded fibres such as PAN-based T300 undergo some chemical and microstructural modifications decreasing their mechanical properties.

Keywords

Microstructure Mechanical Property Magnesium Tensile Strength Composite Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • J. C. Viala
    • 1
  • P. Fortier
    • 1
  • G. Claveyrolas
    • 1
  • H. Vincent
    • 1
  • J. Bouix
    • 1
  1. 1.U.H.A. CNRS 116Laboratoire de Physico-chimie Minérale 1Villeurbanne CedexFrance

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