MoSi2-Si-B/SiC double-layer oxidation protective coating for carbon/carbon composites

T. Feng, H. J. Li, Q. G. Fu, X. H. Shi, X. T. Shen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A new MoSi2-Si-B ceramic coating was prepared on the surface of SiC coated carbon/carbon (C/C) composites by a simple and low-cost slurry method. The microstructures of the double-layer coatings were characterised by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy analyses. It could effectively protect C/C composites from oxidation for 100 h with a weight loss of 0·2% in air at 1773 K and for 40 h with a weight loss of 4·2% at 1073 K. The oxidation protective coating was principally due to the production of eutectic glass film for decreasing oxygen diffusing through the coating.

Original languageEnglish
Pages (from-to)345-349
Number of pages5
JournalSurface Engineering
Volume27
Issue number5
DOIs
StatePublished - Jun 2011

Keywords

  • Carbon/carbon composites
  • Coating
  • High temperature
  • Intermediate temperature
  • Oxidation

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