Effect of high-temperature heat treatment on the microstructure and mechanical behavior of PIP-based C/C-SiC composites with SiC filler

Tang, Zhenxiao; Yi, Maozhong; Zhou, Yuanming; Peng, Ke

doi:10.1016/j.jeurceramsoc.2021.08.032

Cited by 25 publications

(3 citation statements)

References 34 publications

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“…Therefore, the PIP process has been widely used to prepare ceramic matrix composites such as C/SiC composites and is also often used to fabricate ceramic matrix composites with large size and complex structure. [30,[38][39][40][41][42] DOI: 10.1002/adem.202301489…”

Section: Introductionmentioning

confidence: 99%

Service Characteristic Evolution of 3D Four‐Directional Braided C/SiC Ceramic Matrix Composites Under Space Electron Radiation Erosion Environment

Zhang,

Yang,

Bai

2024

Adv Eng Mater

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The specific effects on the evolution of microstructure, components and mechanical properties of the three‐dimensional braided C/SiC composites under different‐time electron irradiation environment tests were analyzed and discussed to elaborate the corresponding corrosion damage mechanism. The damage to the C/SiC composites was intensified by the continuous electron irradiation, the areas of surface bulges and cracks were significantly enlarged, and the surface roughness increased. The density of white dots on the surface of the specimen increased as the electron irradiation time was prolonged, while the size did not change significantly, and the oxygen content on the surface of the specimen increased to some extent. With the prolongation of electron irradiation time, the decrease of bending strength of C/SiC composites increased, but did not level off after a certain degree, probably because of the existence of certain pores on the surface layer of the C/SiC composite. With the increase of electron radiation time, the crack defects on the surface layer of the C/SiC composite increased, and the electron radiation further damaged the internal matrix and reinforcing fibers in the C/SiC composite, thus the mechanical properties declined continuously and seriously after the radiation exceeded 1 h.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Service Characteristic Evolution of 3D Four‐Directional Braided C/SiC Ceramic Matrix Composites Under Space Electron Radiation Erosion Environment

Zhang,

Yang,

Bai

2024

Adv Eng Mater

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“…Furthermore, the pore structure of different carbon‐fiber preforms can directly affect the densification process of C/C–SiC composites, 19 because the preparation methods of C/C–SiC composite mainly involve chemical vapor infiltration (CVI) method, precursor impregnation and pyrolysis (PIP) method, and reactive melt infiltration (RMI) method. These methods all use gaseous or liquid sources to infiltrate the porous network structure of the carbon‐fiber preform, leading to the generation of carbon and silicon carbide through thermally induced reactions 17,20,21 . Consequently, it is imperative to investigate the influence of the pore structure of carbon‐fiber preforms on the densification process of composites.…”

Section: Introductionmentioning

confidence: 99%

“…These methods all use gaseous or liquid sources to infiltrate the porous network structure of the carbon-fiber preform, leading to the generation of carbon and silicon carbide through thermally induced reactions. 17,20,21 Consequently, it is imperative to investigate the influence of the pore structure of carbon-fiber preforms on the densification process of composites. The density of the composites also indirectly affects their performance.…”

Section: Introductionmentioning

confidence: 99%

Effects of preform structure on microstructure and mechanical properties of long/short fiber‐coupled C/C–SiC composites

Ye,

Wang,

Xiong

et al. 2024

Int J Applied Ceramic Tech

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C/C–SiC composites with four different preform structures were prepared via chemical vapor infiltration and reactive melt infiltration (RMI). The effects of preform structure on the microstructure and mechanical properties of the C/C–SiC composites were thoroughly investigated. The results indicate that the porous C/C composites with multidirectional long/short fiber‐coupling exhibited consistent pore size distribution (diameter: 5–300 µm) and periodicity pore distribution characteristics. As the effective fiber volume fraction in the loading direction of the C/C–SiC composites increased from 11.71% to 21.04%, the tensile and flexural strength significantly increased by 64.44% and 44.03%, respectively, with minimal effect on compressive and interlaminar shear properties. The introduction of Z‐direction fiber, such as stitched structure, increased the compressive and interlaminar shear strength of the composites by 10.87% and 15.67%, respectively. A theoretical predictive model of ultimate tensile strength after modification was validated for application to the C/C–SiC composites prepared by RMI, through characterization of the volume fraction of each layered unit and the content of each component. However, the presence of defects caused by the stitched structure, such as fiber bending, occupancy, and pores, reduced tensile and flexural strength by 30.45% and 28.56%, thereby impacting the effectiveness of the predictive model negatively.

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Mechanical and ablation properties of 3D orthogonal woven C/C-SiC composite based on high-solid-loading slurry impregnation

Tang

Zhou

et al. 2023

J Mater Sci

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Effect of high-temperature heat treatment on the microstructure and mechanical behavior of PIP-based C/C-SiC composites with SiC filler

Cited by 25 publications

References 34 publications

Service Characteristic Evolution of 3D Four‐Directional Braided C/SiC Ceramic Matrix Composites Under Space Electron Radiation Erosion Environment

Service Characteristic Evolution of 3D Four‐Directional Braided C/SiC Ceramic Matrix Composites Under Space Electron Radiation Erosion Environment

Effects of preform structure on microstructure and mechanical properties of long/short fiber‐coupled C/C–SiC composites

Mechanical and ablation properties of 3D orthogonal woven C/C-SiC composite based on high-solid-loading slurry impregnation

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