Journal of Materials Science

, Volume 43, Issue 13, pp 4618–4624 | Cite as

Fabrication of short carbon fiber preforms coated with pyrocarbon/SiC for liquid metal infiltration

  • Haibo Ouyang
  • Hejun Li
  • Lehua Qi
  • Zhengjia Li
  • Ting Fang
  • Jianfeng Wei


A novel method of fabricating short carbon fiber preforms was proposed for liquid metal infiltration. The preforms were shaped by wet forming and strengthened by pyrocarbon (PyC). SiC layers were prepared on carbon fibers by the reaction of SiO and PyC at 1600 °C. X-ray Diffraction, Scanning Electron Microscopy, and Energy Dispersive X-ray Spectroscopy were applied in the characterization of the preforms. Gas pressure infiltration was done to demonstrate the feasibility of the preforms for the liquid metal infiltration. The microstructure analysis indicates that carbon fibers are uniformly distributed in the preforms, and fibers are coated with an inner layer of PyC and an outer layer of SiC. The infiltration experiment proves that the prepared preforms are feasible for liquid metal infiltration under low infiltration pressure and temperature.


Carbon Fiber Carbothermal Reduction Short Carbon Fiber Carbon Template Infiltration Temperature 



This work has been supported by the National Natural Science Foundation of China under Grant No. 50575185, the Foundation of Aeronautic Science of China under Grant No. 05G53048, and the Natural Science Foundation of Shaanxi province under Grant No. 2005E23.


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Haibo Ouyang
    • 1
  • Hejun Li
    • 1
  • Lehua Qi
    • 1
  • Zhengjia Li
    • 1
  • Ting Fang
    • 1
  • Jianfeng Wei
    • 1
  1. 1.C/C Composites Research Center, Key Laboratory of Ultrahigh Temperature CompositesNorthwestern Polytechnical UniversityXi’anPeople’s Republic of China

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