In situ synthesis of SiOC ceramic nanorod-modified carbon/carbon composites with sol–gel impregnation and CVI

Hui, Lin; Li, Hejun; Qu, Huaiyuan; Li, Lu; Shi, Xiaohong; Guo, Lingjun

doi:10.1007/s10971-015-3744-y

Cited by 15 publications

(2 citation statements)

References 23 publications

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“…Figure (A) presents the XRD patterns for HEA, HEMA copolymerized with PEGDA, and PEGDA‐based membranes after calcination. The broad peak at 23° was assigned to the amorphous silica, whereas the peaks at 44 and 77° were assigned to crystalline β‐SiC . A higher intensity of the peaks observed in the PEGDA membrane suggested that the silicon deposition was higher compared to those of the HEA–PEGDA and HEMA–PEGDA copolymerized membranes; this was attributed to the larger pore sizes of the PEGDA‐based membrane as compared to the other two membranes.…”

Section: Resultsmentioning

confidence: 98%

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Maitlo

Ali

Shehzad

et al. 2017

J of Applied Polymer Sci

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Self‐supporting, interconnected, porous inorganic (silicon/carbon) membranes were obtained by the calcination of composite membranes at 900 °C with a porous polymer template obtained by binary‐phase solid‐state photopolymerization at −60 °C with acrylate monomers followed by chemical vapor deposition. The physicochemical properties of all of the membranes were characterized by scanning electron microscopy, energy‐dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, X‐ray powder diffraction (XRD), thermogravimetric analysis (TGA), and the measurement of water contact angles, water uptake, and percentage of porosity. The membranes showed contact angles ranging from 127 to 130 ± 0.5°, which were close to those of superhydrophobicity. The EDS, FTIR spectroscopy, XRD, and TGA results confirmed the formation of the Si–C composite structure after calcination and an increase in the thermal stability. The polymer and composite membranes were found to be hydrophilic, whereas Si–C was hydrophobic. The poly(ethylene glycol) diacrylate derived Si–C membrane showed a good absorption efficiency for tinted toluene from water compared to the others. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45822.

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Section: Resultsmentioning

confidence: 98%

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Maitlo

Ali

Shehzad

et al. 2017

J of Applied Polymer Sci

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“…Commercially available tetraethoxysilane (TEOS), ethanol absolute (EtOH, AR; Hongyan Reagent Factory, Tianjin, China), deionized water (H 2 O, AR), hydrochloric acid (HCl, AR; Hongyan Reagent Factory, Tianjin, China), and 2D needled carbon felt (density: 0.54–0.56 g/cm 3 , fiber diameter: 6–7 μm; Tianniao, Jiangsu, China) were used as raw materials. SiO 2 sol was prepared by the method reported in our previous work [ 20 ]. Figure 1 shows the schematic illustration for the fabrication of C/C composites, with in-situ grown SiCNWs.…”

Section: Methodsmentioning

confidence: 99%

3C-SiC Nanowires In-Situ Modified Carbon/Carbon Composites and Their Effect on Mechanical and Thermal Properties

Hui

Shen

et al. 2018

Nanomaterials

Self Cite

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An in-situ, catalyst-free method for synthesizing 3C-SiC ceramic nanowires (SiCNWs) inside carbon–carbon (C/C) composites was successfully achieved. Obtained samples in different stages were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman scattering spectroscopy. Results demonstrated that the combination of sol-gel impregnation and carbothermal reduction was an efficient method for in-situ SiCNW synthesis, inside C/C composites. Thermal properties and mechanical behaviors—including out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of SiCNW modified C/C composites—were investigated. By introducing SiCNWs, the initial oxidation temperature of C/C was increased remarkably. Meanwhile, out-of-plane and in-plane compressive strengths, as well as interlaminar shear strength (ILLS) of C/C composites were increased by 249.3%, 109.2%, and 190.0%, respectively. This significant improvement resulted from simultaneous reinforcement between the fiber/matrix (F/M) and matrix/matrix (M/M) interfaces, based on analysis of the fracture mechanism.

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Microstructure and mechanical properties of carbon/carbon composites with PyC/SiC/TiC multilayer interphases

Zhou

Shi

et al. 2018

Ceramics International

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In situ synthesis of SiOC ceramic nanorod-modified carbon/carbon composites with sol–gel impregnation and CVI

Cited by 15 publications

References 23 publications

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

3C-SiC Nanowires In-Situ Modified Carbon/Carbon Composites and Their Effect on Mechanical and Thermal Properties

Microstructure and mechanical properties of carbon/carbon composites with PyC/SiC/TiC multilayer interphases

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