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Date of Publication:2012-01-01

Journal:机械工程材料

Affiliation of Author(s):材料科学与工程学院

Volume:36

Issue:11

Page Number:76-78

ISSN No.:1000-3738

Abstract:Taking chopped PAN-based oxidized fiber and phenolic resin as raw
   materials, the low-density carbon-carbon composites were prepared by
   vacuum moulding technique, solidification, and carbonization process,
   and the microstructure and properties of the composites were studied by
   scanning electron microscopy and material testing. The result show that
   the composite had obvious anisotropy. The open porosity of the composite
   gradually decreased, while the density increased from O.11 g.cm~(-3) to
   O.22 g ? cm~(-3), and the compressive strength raised from O.18 MPa to
   1.09 MPa with the decrease of the fiber content from 95wt% to 58wt%, and
   the mechanism of compression fracture also changed.

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