Silicon carbide coating for carbon-carbon composites

K. Loutfy, Erica L Corral, E. Dyadko, R. Hoffman, R. Loutfy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Carbon-carbon composites are widely used in aerospace industry due to their unique combination of high strength and low density. However, for high temperature applications in an oxidative atmosphere they must be protected by refractory coating. A simple method is proposed to apply a gas-phase coating on carbon-carbon composites surface from a low cost precursor. The coating fully infiltrates the C-C surface to the depth of 0.5-1mm (0.020-0.040"). The surface of each carbon fiber in the infiltrated layer is fully converted into silicon carbide. This method provides a continuous coating which is highly adherent to the carbon-carbon surface. The coated C-C samples were tested by acetylene torch in air at 1800°C/3272°F for 5min and showed 35 times smaller ablation rate than uncoated ones. Testing in air with high velocity plasma flow perpendicular to the tested surface at 3500°C/6330°F for 30sec demonstrated great advantage of the coated sample over the uncoated one.

Original languageEnglish (US)
Title of host publicationAdvances in Powder Metallurgy and Particulate Materials - 2014, Proceedings of the 2014 World Congress on Powder Metallurgy and Particulate Materials, PM 2014
PublisherMetal Powder Industries Federation
Pages684-690
Number of pages7
ISBN (Print)0985339764, 9780985339760
StatePublished - 2014
Event2014 World Congress on Powder Metallurgy and Particulate Materials, PM 2014 - Orlando, United States
Duration: May 18 2014May 22 2014

Other

Other2014 World Congress on Powder Metallurgy and Particulate Materials, PM 2014
CountryUnited States
CityOrlando
Period5/18/145/22/14

ASJC Scopus subject areas

  • Materials Chemistry
  • Metals and Alloys
  • Surfaces and Interfaces

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  • Cite this

    Loutfy, K., Corral, E. L., Dyadko, E., Hoffman, R., & Loutfy, R. (2014). Silicon carbide coating for carbon-carbon composites. In Advances in Powder Metallurgy and Particulate Materials - 2014, Proceedings of the 2014 World Congress on Powder Metallurgy and Particulate Materials, PM 2014 (pp. 684-690). Metal Powder Industries Federation.