Microstructure and properties of C/C and C/SiC composites brazed by reactive infiltration of Si Zr filler alloy

He, Zongjing; Xu, Huining; Sun, Liangbo; Li, Chun; Si, Xiaoqing; Cao, Jian

doi:10.1016/j.matchar.2024.114038

Materials Characterization

2024

DOI: 10.1016/j.matchar.2024.114038

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Microstructure and properties of C/C and C/SiC composites brazed by reactive infiltration of Si Zr filler alloy

Zongjing He,

Huining Xu,

Liangbo Sun

et al.

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2024

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Cited by 3 publications

References 45 publications

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NbC in-situ formation behavior and effect in high-temperature brazing of C/C composite using Nb-containing Fe based active brazes

Jiang,

Zhang,

2024

Ceramics International

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NbC in-situ formation behavior and effect in high-temperature brazing of C/C composite using Nb-containing Fe based active brazes

Jiang,

Zhang,

2024

Ceramics International

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Microstructure and properties of different carbon fiber reinforced ceramic composites brazed joint by Si–Ti alloy filler

He,

Xu,

Zhang

et al. 2024

Journal of Materials Research and Technology

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Microstructural Evolution and Mechanical Behaviors of Cf/Cm-SiC-(ZrxHf1−x)C Composites with Different Carbon Matrices

Liu,

Wang,

Xiong

et al. 2024

J. Compos. Sci.

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In this study, two types of porous Cf/Cm composites were obtained by introducing pyrolytic carbon (PyC) and pyrolytic carbon/furan resin carbon (PyC/FRC). Subsequently, Cf/Cm-SiC-(ZrxHf1−x)C composites with different carbon matrices were prepared by introducing SiC and (ZrxHf1−x)C matrices into the porous Cf/Cm composites via the reactive melt infiltration method, specifically termed as Cf/PyC-SiC-(ZrxHf1−x)C and Cf/PyC/FRC-SiC-(ZrxHf1−x)C composites. The microstructures of the porous Cf/Cm and Cf/Cm-SiC-(ZrxHf1−x)C composites with different carbon matrices were examined, and a comprehensive analysis was conducted on microstructural evolution and mechanical behaviors of the Cf/Cm-SiC-(ZrxHf1−x)C composites. The results indicate that both Cf/Cm-SiC-(ZrxHf1−x)C composites underwent similar microstructural evolution processes, differing only in terms of evolution kinetics and final microstructure. Differences in the pore structures of porous Cf/Cm composites, as well as in the reactivities of carbon matrices, were identified as primary influencing factors. Additionally, both Cf/Cm-SiC-(ZrxHf1−x)C composites exhibited “pseudo-ductile” fracture characteristics, with flexural strengths of 214.1 ± 8.8 MPa and 149.6 ± 12.2 MPa, respectively. In the Cf/PyC-SiC-(ZrxHf1−x)C composite, crack initiation during loading primarily originated from the ceramic matrix, while in the Cf/PyC/FRC-SiC-(ZrxHf1−x)C composite, failure initially arose from the residual FRC matrix. Excessive fiber corrosion and the presence of residual low-modulus FRC matrix resulted in lower mechanical performance.

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Microstructure and properties of C/C and C/SiC composites brazed by reactive infiltration of Si Zr filler alloy

Cited by 3 publications

References 45 publications

NbC in-situ formation behavior and effect in high-temperature brazing of C/C composite using Nb-containing Fe based active brazes

NbC in-situ formation behavior and effect in high-temperature brazing of C/C composite using Nb-containing Fe based active brazes

Microstructure and properties of different carbon fiber reinforced ceramic composites brazed joint by Si–Ti alloy filler

Microstructural Evolution and Mechanical Behaviors of Cf/Cm-SiC-(ZrxHf1−x)C Composites with Different Carbon Matrices

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