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Indexed by:期刊论文

Date of Publication:2016-04-01

Journal:CERAMICS INTERNATIONAL

Included Journals:SCIE、EI

Volume:42

Issue:5

Page Number:5823-5829

ISSN No.:0272-8842

Key Words:Solid particle erosion; Composite coating; Rigid carbon fiber felt; Erosion behaviors

Abstract:Rigid carbon fiber felt (RCFF) was surface modified with a composite coating via a two-step technique of pasting and chemical vapor deposition. Scanning electron microscopy and X-ray diffraction were performed to analyze the microstructure of the substrate and the composite coating. The effect of the deposition time on solid particle erosion properties of RCFF modified by a composite coating was investigated. The pyrolytic carbon can decrease the surface porosity of a carbon fiber cloth, resulting in a dense composite. Compared with the substrate, the composite coating exhibited good erosion resistance and reduced the mass loss of the substrate by a factor of 19. The strengthening mechanism was discussed in this paper, and crack propagation along the interface between a carbon fiber and pyrolytic carbon sheath was found to occur; the crack propagation is an important factor for improving erosion resistance. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.