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A carbon nanotube–enhanced SiC coating for the oxidation protection of C/C composite materials

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Title: A carbon nanotube–enhanced SiC coating for the oxidation protection of C/C composite materials
Authors: Zheng, Guo-Bin / Sano, Hideaki / Uchiyama, Yasuo
Issue Date: Dec-2011
Publisher: Elsevier Ltd.
Citation: Composites Part B: Engineering, 42(8), pp.2158-2162; 2011
Abstract: A carbon nanotube-enhanced SiC (CNT-SiC) coating was deposited on C/C composites to improve the oxidation resistance of C/C. The CNT-SiC coating was prepared by direct growth of CNTs on C/C surface at 700 °C followed by deposition of SiC using chemical vapor deposition at 1150 °C for 1 h. SiC was deposited on the CNTs as well as the interface between CNTs and C/C, making CNTs strongly rooted on C/C surface. The final CNT-SiC coating consisted of two layers: the CNT-SiC layer and SiC layer. In comparison to the SiC coating, the CNT-SiC coating showed fewer cracks and a better oxidation resistance because the CNTs reduce the stress in the coating caused by the mismatch of the coefficient of thermal expansion between C/C and SiC.
Keywords: A. Carbon nanotubes / A. Carbon/carbon composites / E. Chemical vapor deposition
URI: http://hdl.handle.net/10069/27706
ISSN: 13598368
DOI: 10.1016/j.compositesb.2011.05.012
Rights: Copyright © 2011 Elsevier Ltd. All rights reserved.
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/27706

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