CAIRO, C.A.A.GRACA, M.L.A.SILVA, C.R.M.BRESSIANI, J.C.2014-07-312014-07-312014-07-312014-07-312001CAIRO, C.A.A.; GRACA, M.L.A.; SILVA, C.R.M.; BRESSIANI, J.C. Functionally gradient ceramic coating for carbon-carbon antioxidation protection. <b>Journal of the European Ceramic Society</b>, v. 21, n. 3, p. 325-329, 2001. DOI: <a href="https://dx.doi.org/10.1016/S0955-2219(00)00191-6">10.1016/S0955-2219(00)00191-6</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/7284.0955-2219http://repositorio.ipen.br/handle/123456789/7284Functionally 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.325-329openAccesscomposite materialscarboncorrosionoxidationcorrosion protectionsilicon carbidesboron carbidescoatingsArtigo de periódico32110.1016/S0955-2219(00)00191-6