High temperature compression properties and failure mechanism of 3D needle-punched carbon/carbon composites

Li, Dian‐sen; Luo, Gang; Yao, Qianqian; Jiang, Nan; Jiang, Lei

doi:10.1016/j.msea.2014.10.060

Cited by 40 publications

(13 citation statements)

References 18 publications

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“…The average flexural strength of the C/G/C composite is 187 ± 12 MPa, much higher than that of the C/C composite (106 ± 10 MPa). Compared with untreated carbon fiber, the flexural strength of functionalized carbon fiber composites was increased by 76.4%, which was higher than that of previous studies [ 48 , 49 , 50 ].…”

Section: Resultscontrasting

confidence: 68%

Effect of Interface Modified by Graphene on the Mechanical and Frictional Properties of Carbon/Graphene/Carbon Composites

2016

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In this work, we developed an interface modified by graphene to simultaneously improve the mechanical and frictional properties of carbon/graphene/carbon (C/G/C) composite. Results indicated that the C/G/C composite exhibits remarkably improved interfacial bonding mode, static and dynamic mechanical performance, thermal conductivity, and frictional properties in comparison with those of the C/C composite. The weight contents of carbon fibers, graphene and pyrolytic carbon are 31.6, 0.3 and 68.1 wt %, respectively. The matrix of the C/G/C composite was mainly composed of rough laminar (RL) pyrocarbon. The average hardness by nanoindentation of the C/G/C and C/C composite matrices were 0.473 and 0.751 GPa, respectively. The flexural strength (three point bending), interlaminar shear strength (ILSS), interfacial debonding strength (IDS), internal friction and storage modulus of the C/C composite were 106, 10.3, 7.6, 0.038 and 12.7 GPa, respectively. Those properties of the C/G/C composite increased by 76.4%, 44.6%, 168.4% and 22.8%, respectively, and their internal friction decreased by 42.1% in comparison with those of the C/C composite. Owing to the lower hardness of the matrix, improved fiber/matrix interface bonding strength, and self-lubricating properties of graphene, a complete friction film was easily formed on the friction surface of the modified composite. Compared with the C/C composite, the C/G/C composite exhibited stable friction coefficients and lower wear losses at simulating air-plane normal landing (NL) and rejected take-off (RTO). The method appears to be a competitive approach to improve the mechanical and frictional properties of C/C composites simultaneously.

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Section: Resultscontrasting

confidence: 68%

Effect of Interface Modified by Graphene on the Mechanical and Frictional Properties of Carbon/Graphene/Carbon Composites

2016

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“…They are designed for aerospace (Krenkel & Berndt, 2005) and tribological (Xiong et al, 2016) technologies and have potential applications for nuclear energy (Shih et al, 2013). There is interest to optimize their properties through control of the microstructure, and the mechanical properties of various C/C-SiC composites have been studied in tension (Chen et al, 2016), compression (Li et al, 2015), bending (Park et al, 2008; Wang et al, 2009), shearing (Dongmei et al, 2007), and by indentation (Cui et al, 2011). However, these are usually macroscopic tests that provide limited information on the influence of microstructure on the mechanical response.…”

Section: Introductionmentioning

confidence: 99%

In situ Observation of Compression Damage in a Three-Dimensional Braided Carbon Fiber Reinforced Carbon and Silicon Carbide (C/C-SiC) Ceramic Composite

et al. 2018

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Deformation and mechanical damage in a three-dimensional braided carbon fiber reinforced carbon and silicon carbide ceramic composite, subjected to compressive loading, has been studied in situ by laboratory X-ray computed tomography. Dimensional change was measured and damage visualized by digital volume correlation analysis of tomographs. Cracks nucleated from defects within the fiber bundles and tended to propagate along the fiber bundle/matrix interface. For longitudinal compression, parallel to the fiber bundles, the initial elastic modulus decreased with increasing compressive strain while significant transverse tensile strains developed due to distributed cracking. For transverse compression, perpendicular to the fiber bundles, the compressive elastic modulus was effectively constant; the tensile strains developed along the fiber direction were small, whereas macroscopic fracture between the fiber bundles caused very large bulk tensile strain perpendicular to the loading. The observations suggest that the mechanical strength might be improved through control of pre-existing defects and application of stitch fibers in the transverse direction.

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“…Compressive failure in C/C composites can be tailored by fibers architectures or needle-punch techniques [38], and these approaches could be used to increase the reliability of these carbonbased nozzle designs.…”

Section: The Results Of the Failure Probability Analysismentioning

confidence: 99%

Probabilistic Reliability Analysis of Carbon/Carbon Composite Nozzle Cones with Uncertain Parameters

Xie¹,

Yang²,

Meng³

et al. 2019

Journal of Spacecraft and Rockets

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High temperature compression properties and failure mechanism of 3D needle-punched carbon/carbon composites

Cited by 40 publications

References 18 publications

Effect of Interface Modified by Graphene on the Mechanical and Frictional Properties of Carbon/Graphene/Carbon Composites

Effect of Interface Modified by Graphene on the Mechanical and Frictional Properties of Carbon/Graphene/Carbon Composites

In situ Observation of Compression Damage in a Three-Dimensional Braided Carbon Fiber Reinforced Carbon and Silicon Carbide (C/C-SiC) Ceramic Composite

Probabilistic Reliability Analysis of Carbon/Carbon Composite Nozzle Cones with Uncertain Parameters

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