Multilayer and multi-component oxidation protective coating system for carbon/carbon composites from room temperature to 1873 K

A multilayer B sub(2)O sub(3)-modified MoSi sub(2)-CrSi sub(2)-Si/B-modified SiC coating system was prepared on the surface of carbon/carbon (C/C) composites by a three-step pack cementation method. The microstructure, oxidation resistance and thermal cycling test of the multilayer coating were stud...

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Bibliographic Details
Published in:Corrosion science 2013-07, Vol.72, p.144-149
Main Authors: TAO FENG, LI, He-Jun, XI YANG, SHI, Xiao-Hong, WANG, Shao-Long, HE, Zi-Bo
Format: Article
Language:English
Subjects:
Applied sciences
Carbon
Carbon-carbon composites
Coating
Corrosion
Corrosion environments
Corrosion prevention
Exact sciences and technology
Metals. Metallurgy
Multilayers
Oxidation
Oxidation resistance
Protective coatings
Silicon carbide
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Summary:A multilayer B sub(2)O sub(3)-modified MoSi sub(2)-CrSi sub(2)-Si/B-modified SiC coating system was prepared on the surface of carbon/carbon (C/C) composites by a three-step pack cementation method. The microstructure, oxidation resistance and thermal cycling test of the multilayer coating were studied. The results show that the coating system exhibits good oxidation resistance from room temperature to 1873 K. It can protect the C/C composites from isothermal oxidation in air at 1173 K for 150 h or 1873 K for 900 h, respectively. It can also resist 30 thermal cycles between 1873 K and room temperature.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2013.03.006