Fabrication of interface coating for ceramic matrix composites using rotating-CVI

Peng Xiao, Yong Dong Xu, Li Tong Zhang, Lai Fei Cheng

Research output: Contribution to journalArticlepeer-review

Abstract

Dense pyrolytic carbon interface coating with uniform thickness and regular surface was fabricated using rotating chemical vapor infiltration (RCVI) process on 2-D carbon cloth within optimal parameters, that is, low pressure (5kPa), high temperature (1100°C), high propylene concentration (62. 5 vol%) and 3. 5 mm · min-1 rotational linear velocity. The results in this paper show that there are more important effect of deposition temperature on the properties of coating surface, and low pressure, optimization of geometric construct of deposition furnace are valid for preventing forming-soot from pyrolytic carbon deposition process on conditions of high temperature and high propylene concentration.

Original languageEnglish
Pages (from-to)30-31
Number of pages2
JournalHangkong Cailiao Xuebao/Journal of Aeronautical Materials
Volume19
Issue number4
StatePublished - Dec 1999

Keywords

  • Ceramic matrix composites
  • Interface coating
  • Pyrolytic carbon
  • Rotating-CVI
  • Soot

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