The influences of carbon nanotubes introduced in three different phases of carbon fiber/pyrolytic carbon/silicon carbide composites on microstructure and properties of their composites

Wang, Jie; Zhang, Xiaming; Miao, Yulong; Li, Yaoyao; Xi, Xianfeng; Zhong, Xiqiang; Pei, Xueliang; He, Liu; Huang, Qing

doi:10.1016/j.carbon.2017.12.028

Cited by 23 publications

(8 citation statements)

References 34 publications

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“…65−67 Moreover, the steep load drops (marked by rectangle areas in Figure 4a 2 ) can be found in the rise stage of stress−strain curves and are gradually alleviated with increasing alternate PIP sequences. This phenomenon originates from the matrix delamination, 68,69 which is confirmed by abundant delaminated PyC and SiC layers on the fracture surfaces of SGCS-1 and SGCS-3 (Figure S5a,b). The existence of large-scale boundaries between adjacent SiC (also PyC) layers provides the main channels for the long-distance extension of destructive cracks and then opening the layers, leading to a weak antidestruction ability.…”

Section: Resultsmentioning

confidence: 88%

High-Performance Multifunctional Carbon–Silicon Carbide Composites with Strengthened Reduced Graphene Oxide

Feng

Zhang

et al. 2021

ACS Nano

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Materials with low density, exceptional thermal and corrosion resistance, and ultrahigh mechanical and electromagnetic interference (EMI) shielding performance are urgently demanded for aerospace and military industries. Efficient design of materials’ components and microstructures is crucial yet remains highly challenging for achieving the above requirements. Herein, a strengthened reduced graphene oxide (SrGO)-reinforced multi-interfacial carbon–silicon carbide (C-SiC) n matrix (SrGO/(C-SiC) n ) composite is reported, which is fabricated by depositing a carbon-strengthening layer into rGO foam followed by alternate filling of pyrocarbon (PyC) and silicon carbide (SiC) via a precursor infiltration pyrolysis (PIP) method. By increasing the number of alternate PIP sequences (n = 1, 3 and 12), the mechanical, electrical, and EMI shielding properties of SrGO/(C-SiC) n composites are significantly increased. The optimal composite exhibits excellent conductivity of 8.52 S·cm–1 and powerful average EMI shielding effectiveness (SE) of 70.2 dB over a broad bandwidth of 32 GHz, covering the entire X-, Ku-, K-, and Ka-bands. The excellent EMI SE benefits from the massive conduction loss in highly conductive SrGO skeletons and polarization relaxation of rich heterogeneous PyC/SiC interfaces. Our composite features low density down to 1.60 g·cm–3 and displays robust compressive properties (up to 163.8 MPa in strength), owing to the uniformly distributed heterogeneous interfaces capable of consuming great fracture energy upon loadings. Moreover, ultrahigh thermostructural stability (up to 2100 °C in Ar) and super corrosion resistance (no strength degradation after long-term acid and alkali immersion) are also discovered. These excellent comprehensive properties, along with ease of low-cost and scalable production, could potentially promote the practical applications of the SrGO/(C-SiC) n composite in the near future.

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Section: Resultsmentioning

confidence: 88%

High-Performance Multifunctional Carbon–Silicon Carbide Composites with Strengthened Reduced Graphene Oxide

Feng

Zhang

et al. 2021

ACS Nano

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“…Instead of using CF alone, people tend to combine it with different matrices to obtain composites that own excellent strength, low thermal expansion coeffient, and lightweight [1,2,3]. In the aerospace area, some parts of planes, spaceships, and some parts of rocket need to resist extremely high temperature.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Anti-Oxidation Ability of SiC-SiO2 Coated Carbon Fibers Using Sol-Gel Method

et al. 2018

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The paper proposed a method to improve the anti-oxidation performance of carbon fibers (CF) at high temperature environment by coating silicon dioxide (SiO2) and silicon carbide (SiC). The modified sol-gel method had been used to ensure the proper interface between fibers and coating. We used polydimethylsiloxane and ethyl orthosilicate to make stable emulsion to uniformly disperse SiC nanoparticles. The modified SiO2/SiC coating had been coated on CF successfully. Compared with the untreated CF, the coated fibers started to be oxidized around 900 °C and the residual weight was 57% at 1400 °C. The oxidation mechanism had been discussed. The structure of SiC/SiO2 coated CF had been characterized by scanning electron microscope and X-ray diffraction analysis. Thermal gravimetric analysis was used to test the anti-oxidation ability of CF with different coatings.

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“…16,17 Recently, carbon nano tube (CNT), silicon carbide (SiC) and silicon nitride (Si 3 N 4 ) whiskers have been grown on CF surfaces and have been observed to improve interface dominated mechanical properties 18 while simultaneously deteriorating the fiber dominated properties, because of the requirement of hightemperature synthesis treatment. [19][20][21] In addition, strong van der Waals force between CNTs makes them tend to agglomerate and collapse, which may limit their toughening mechanisms such as pull-out or bridging. 22 Recently, ZnO nanowirebased composites have gained attention due to their multifunctional properties, such as piezoelectricity.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide-mediated thermo-reversible bonds and in situ grown nano-rods trigger ‘self-healable’ interfaces in carbon fiber laminates

et al. 2022

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The influences of carbon nanotubes introduced in three different phases of carbon fiber/pyrolytic carbon/silicon carbide composites on microstructure and properties of their composites

Cited by 23 publications

References 34 publications

High-Performance Multifunctional Carbon–Silicon Carbide Composites with Strengthened Reduced Graphene Oxide

High-Performance Multifunctional Carbon–Silicon Carbide Composites with Strengthened Reduced Graphene Oxide

Fabrication and Anti-Oxidation Ability of SiC-SiO2 Coated Carbon Fibers Using Sol-Gel Method

Graphene oxide-mediated thermo-reversible bonds and in situ grown nano-rods trigger ‘self-healable’ interfaces in carbon fiber laminates

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