Erosion protective coatings for low density, highly porous carbon/carbon composites

A simple and low cost method based on slurry coating was used to produce silicon carbide, titanium carbide and glass-ceramic coatings on low density carbon/carbon composites in order to improve their erosion resistance. Microstructural analyses were performed for substrate and coatings by optical mi...

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Bibliographic Details
Published in:Carbon (New York) 2009-05, Vol.47 (6), p.1511-1519
Main Authors: Smeacetto, F., Salvo, M., Ferraris, M., Casalegno, V., Canavese, G., Moskalewicz, T., Ellacott, S., Rawlings, R.D., Boccaccini, A.R.
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
General and physical chemistry
Materials science
Physics
Porous materials
Specific materials
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Summary:A simple and low cost method based on slurry coating was used to produce silicon carbide, titanium carbide and glass-ceramic coatings on low density carbon/carbon composites in order to improve their erosion resistance. Microstructural analyses were performed for substrate and coatings by optical microscopy, and scanning and transmission electron microscopy. As-received and coated composites were submitted to erosion tests using a sandblasting machine according to ASTM G76-95. The best results were obtained with a silica–alumina–yttria based glass-ceramic coating.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2009.01.045