Functionally gradient ceramic coating for carbon-carbon antioxidation protection
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2001
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Journal of the European Ceramic Society
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Abstract
Functionally gradient ceramic coating provides an effective antioxidant protection to carbon/carbon composites at intermediate temperatures (below 1000°C) by the formation of a B2O3 glass from the oxidation of boron phases. The glass flows and seals the cracks to prevent further oxygen penetration. A protection layer based on SiC, B4C and Al8B4C7 phases was obtained by carbon conversion of the composite using a pack cementation process with a powder mixture of the ZrB2-SiC-Al2O3 system.
Citation
CAIRO, C.A.A.; GRACA, M.L.A.; SILVA, C.R.M.; BRESSIANI, J.C. Functionally gradient ceramic coating for carbon-carbon antioxidation protection. Journal of the European Ceramic Society, v. 21, n. 3, p. 325-329, 2001. DOI: 10.1016/S0955-2219(00)00191-6. Disponível em: http://repositorio.ipen.br/handle/123456789/7284. Acesso em: 16 Mar 2025.
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