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Titolo:
SiC/C multi-layered coating contributing to the antioxidation of C/C composites and the suppression of through-thickness cracks in the layer
Autore:
Aoki, T; Hatta, H; Hitomi, T; Fukuda, H; Shiota, I;
Indirizzi:
Sci Univ Tokyo, Fac Ind Sci & Technol, Dept Mat Sci & Technol, Noda, Chiba2788510, Japan Sci Univ Tokyo Noda Chiba Japan 2788510 echnol, Noda, Chiba2788510, Japan Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan Inst Space& Astronaut Sci Sagamihara Kanagawa Japan 2298510 98510, Japan Kogakuin Univ, Dept Chem Engn, Hachioji, Tokyo 1928510, Japan Kogakuin Univ Hachioji Tokyo Japan 1928510 Hachioji, Tokyo 1928510, Japan
Titolo Testata:
CARBON
fascicolo: 10, volume: 39, anno: 2001,
pagine: 1477 - 1483
SICI:
0008-6223(2001)39:10<1477:SMCCTT>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON-CARBON COMPOSITES; TEMPERATURE OXIDATION BEHAVIOR; MATRIX COMPOSITES; FILMS; STABILITY;
Keywords:
carbon/carbon composites; chemical vapor deposition; coating; oxidation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Aoki, T Sci Univ Tokyo, Fac Ind Sci & Technol, Dept Mat Sci & Technol, 2641 Yamazaki, Noda, Chiba 2788510, Japan Sci Univ Tokyo 2641 Yamazaki Noda Chiba Japan 2788510 88510, Japan
Citazione:
T. Aoki et al., "SiC/C multi-layered coating contributing to the antioxidation of C/C composites and the suppression of through-thickness cracks in the layer", CARBON, 39(10), 2001, pp. 1477-1483

Abstract

Silicon carbide/carbon multi-layered coatings have been formed on the surfaces of C/C composites. The multi-layered coatings were deposited by the CVD method at 1200 degreesC using SiCl4 C3H8 and H-2 gases. The principal idea of the present multi-layered coatings is to suppress the through-the-thickness coating cracks by making the thickness of each SiC and carbon layer lower than the corresponding critical thicknesses, h(c)s. The values of h(c)s for the SiC and carbon coatings were 0.2 mum and above 15 mum, respectively. The role of the SiC layers is oxidation protection and that of the carbon layers is to mechanically isolate each SIC layer. Based on theoretical and experimental discussions, the SiC/C multi-layered coating was shown to successfully suppress the through-thickness coating cracks. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 04/07/20 alle ore 05:30:43