Synthesis of C/SiC core-shell fibers through siliconization of carbon fibers with SiO gas in semi-closed reactor

Истомина, Е. И.; Истомин, П. В.; Надуткин, А. В.; Грасс, В. Э.; Лысенков, А. С.

doi:10.1016/j.ceramint.2021.04.270

Cited by 5 publications

(2 citation statements)

References 43 publications

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“…13 For the carbon fiber-reinforced SiC ceramic composites, the volatile oxides gas consumes the carbon fibers to generate SiC layers and CO gas, which damages the structure and surface morphology of the carbon fibers. 14 This leads to markedly reduced mechanical strength and fracture toughness of the carbon fiber-reinforced SiC ceramic composites. In order to address these knowledge gaps, in this work, carbon fibers were coated in polycarbosilane (PCS) using a colloidal evaporative deposition technique and then 3D printed using an extrusion-based technique.…”

Section: Introductionmentioning

confidence: 99%

“…However, SiC reacts with oxide sintering additives such as Al 2 O 3 and Y 2 O 3 to generate suboxide gases of silicon, aluminum, and yttrium during sintering 13 . For the carbon fiber–reinforced SiC ceramic composites, the volatile oxides gas consumes the carbon fibers to generate SiC layers and CO gas, which damages the structure and surface morphology of the carbon fibers 14 . This leads to markedly reduced mechanical strength and fracture toughness of the carbon fiber–reinforced SiC ceramic composites.…”

Section: Introductionmentioning

confidence: 99%

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Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

et al. 2023

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A novel additive manufacturing approach is herein reported for manufacturing high mechanical strength continuous carbon fiber-reinforced silicon carbide (C f /SiC) composite materials. Continuous carbon fibers were coated with polycarbosilane (PCS) using a colloidal evaporative deposition process and then coextruded with high solid content SiC ink. The zeta potential of the SiC ink was adjusted to optimize the printing ability of the suspension. During sintering, small SiC grains and whiskers were generated in the gaps in and around the PCS-coated carbon fibers, which led to the improved flexural strength and density of the composites. Meanwhile, the PCS coating on the surface of the carbon fibers prevented the carbon fibers from reacting with SiO gas generated by reactions between the SiC matrix and SiO 2 and sintering additives (Al 2 O 3 and Y 2 O 3 ), effectively preserving the structural integrity of the carbon fibers. Compared to the SiC specimens containing uncoated carbon fibers, the density of the specimens fabricated with coated carbon fibers was increased from 2.51 to 2.85 g/cm 3 , and the strength was increased from 190 to 232 MPa.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

et al. 2023

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Modification of carbon fiber with barium hexaferrite nanostructures

Trukhinov,

Lebedeva,

Ivanova

et al. 2024

Russ Chem Bull

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A novel approach for preparing a SiC coating on a C/C-SiC composite by slurry painting and chemical vapor reaction

Tang

et al. 2022

Journal of the European Ceramic Society

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Synthesis of C/SiC core-shell fibers through siliconization of carbon fibers with SiO gas in semi-closed reactor

Cited by 5 publications

References 43 publications

Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

Modification of carbon fiber with barium hexaferrite nanostructures

A novel approach for preparing a SiC coating on a C/C-SiC composite by slurry painting and chemical vapor reaction

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Synthesis of C/SiC core-shell fibers through siliconization of carbon fibers with SiO gas in semi-closed reactor

Cited by 5 publications

References 43 publications

Additive manufacturing of high mechanical strength continuous Cf/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

Additive manufacturing of high mechanical strength continuous Cf/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

Modification of carbon fiber with barium hexaferrite nanostructures

A novel approach for preparing a SiC coating on a C/C-SiC composite by slurry painting and chemical vapor reaction

Contact Info

Product

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Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers

Additive manufacturing of high mechanical strength continuous C_f/SiC composites using a 3D extrusion technique and polycarbosilane‐coated carbon fibers