Bending Fracture Behaviours of Carbon Fiber Reinforced SiC Composites. Influence of Specimen Size and Span/Depth Ratio.

SiC coated carbon fiber-reinforced SiC matrix (C/SiC) composites were implanted with aluminum ions by metal vapor vacuum arc ion source to improve their oxidation resistance. Depth profile of the aluminum ions in the SiC coated C/SiC composites was checked by Auger electronic energy spectrum. Oxidation tests were performed in flowing dry air at 1300°C on the SiC coated C/SiC composites. The samples with ion implantation exhibited lower weight loss than those without aluminum ion implantation. The surface morphologies of the samples were obtained by scanning electronic microscope. As compared with the mechanical properties of the samples without ion implantation, those of ion-implanted samples changed little.

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125 Fabrication and Characterization of 3D Carbon Fiber Reinforced SiC Composites via PIP and PCVI

The Proceedings of Yamanashi District Conference ◽

10.1299/jsmeyamanashi.2000.27 ◽

2000 ◽

Vol 2000 (0) ◽

pp. 27-28

Author(s):

Kazutaka SUZUKI ◽

Shoichi KUME ◽

Kikuo NAKANO ◽

Yoshinori KANNO

Keyword(s):

Carbon Fiber ◽

Fiber Reinforced ◽

Fabrication And Characterization ◽

Carbon Fiber Reinforced ◽

Sic Composites

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Fabrication and Characteristics of Carbon Fiber Reinforced C–SiC Dual Matrix Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.334-335.145 ◽

2007 ◽

Vol 334-335 ◽

pp. 145-148 ◽

Cited By ~ 1

Author(s):

Dong Mei Zhu ◽

Fa Luo ◽

Hong Na Du ◽

Wan Cheng Zhou

Keyword(s):

Mechanical Properties ◽

Carbon Fiber ◽

Chemical Vapor ◽

Chemical Vapor Infiltration ◽

Matrix Composites ◽

Fiber Reinforced ◽

Final Density ◽

Carbon Fiber Reinforced ◽

Sic Composites ◽

Xylene Solution

A series of carbon fiber reinforced C-SiC dual matrix composites (C/C-SiC composites) were developed through precursor infiltration of polycarbosilane (PCS) and pyrolysis (PIP), using porous C/C composites with different density from chemical vapor infiltration (CVI) as the preform. The density, mechanical properties, and microstructure of the composites were investigated and the effects of the preform density and the PCS concentration of the infiltration solution on the final density and the mechanical properties of the composites were discussed in detail. The results show that the final density of the C/C-SiC composites prepared at the infiltration concentration of 50% is the highest, indicating that 50% is the proper PCS concentration of the PCS/ Xylene solution to prepare the C/C-SiC composites. The final densities of C/C-SiC composites were closely related to the preform density and the highest final density corresponds to the highest original preform density. For the composites prepared using infiltration solution of 50% PCS, the C/C-SiC composite whose preform density is 1.23 g/cm3 possesses the best mechanical properties while that whose preform density is 1.49 g/cm3 the worst mechanical properties.

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