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论文类型：期刊论文

发表时间：2016-04-01

发表刊物：CERAMICS INTERNATIONAL

收录刊物：SCIE、EI

卷号：42

期号：5

页面范围：5823-5829

ISSN号：0272-8842

关键字：Solid particle erosion; Composite coating; Rigid carbon fiber felt; Erosion behaviors

摘要：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.