THE INFLUENCE OFSiCCOATING PROCESS ON THE PROPERTIES OFC/CCOMPOSITES

Min Huang, Ke-Zhi Li (), He-Jun Li, Qian-Gang Fu and Guo-Dong Sun
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Min Huang: C/C Composites Technology Research Center, Key Laboratory of Ultrarhigh Temperature Composites, Northwestern Polytechnical University, Xi'an Shaanxi 710072, People's Republic of China
Ke-Zhi Li: C/C Composites Technology Research Center, Key Laboratory of Ultrarhigh Temperature Composites, Northwestern Polytechnical University, Xi'an Shaanxi 710072, People's Republic of China
He-Jun Li: C/C Composites Technology Research Center, Key Laboratory of Ultrarhigh Temperature Composites, Northwestern Polytechnical University, Xi'an Shaanxi 710072, People's Republic of China
Qian-Gang Fu: C/C Composites Technology Research Center, Key Laboratory of Ultrarhigh Temperature Composites, Northwestern Polytechnical University, Xi'an Shaanxi 710072, People's Republic of China
Guo-Dong Sun: C/C Composites Technology Research Center, Key Laboratory of Ultrarhigh Temperature Composites, Northwestern Polytechnical University, Xi'an Shaanxi 710072, People's Republic of China

Surface Review and Letters (SRL), 2007, vol. 14, issue 04, 817-820

Abstract: SiCcoating for carbon/carbon composites was prepared by pack cementation method. The effects of coating process on the microstructure and the mechanical properties ofC/Ccomposites were analyzed by SEM and three-point bending test, respectively. As the infiltratedSiimproved the interfaces bonding during the coating process, the flexural strength and flexural modulus ofSiC-coated carbon/carbon composites were both increased by about 10% than the nakedC/Ccomposites. In addition, the mechanism of the change of failure mode ofSiCcoatedC/Ccomposites and nakedC/Ccomposites was addressed.

Keywords: Carbon/carbon composites; coating; SiC; mechanical properties (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0218625X07010317

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