Ablation of C/SiC-HfC composite prepared by precursor infiltration and pyrolysis in plasma wind tunnel

Duan, Liuyang; Luo, Lei; Liu, Liping; Wang, Yiguang

doi:10.1007/s40145-020-0379-4

Cited by 70 publications

(15 citation statements)

References 42 publications

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“…Carbon fiber reinforced SiC matrix composites (C/SiC) have been considered as a kind of promising hightemperature structural material [1][2][3]. They have great application potential in aero-engines, aircraft/high-speed train braking systems, and aerospace aircraft thermal protection systems due to the low density, excellent mechanical properties, and thermal shock resistance [4][5][6].…”

Section: Introduction mentioning

confidence: 99%

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

et al. 2022

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Oxidation behaviors of carbon fiber reinforced SiC matrix composites (C/SiC) are one of the most noteworthy properties. For C/SiC, the oxidation behavior was controlled by matrix microcracks caused by the mismatch of coefficients of thermal expansion (CTEs) and elastic modulus between carbon fiber and SiC matrix. In order to improve the oxidation resistance, multilayer SiC-Si3N4 matrices were fabricated by chemical vapor infiltration (CVI) to alleviate the above two kinds of mismatch and change the local stress distribution. For the oxidation of C/SiC with multilayer matrices, matrix microcracks would be deflected at the transition layer between different layers of multilayer SiC-Si3N4 matrix to lengthen the oxygen diffusion channels, thereby improving the oxidation resistance of C/SiC, especially at 800 and 1000 °C. The strength retention ratio was increased from 61.9% (C/SiC-SiC/SiC) to 75.7% (C/SiC-Si3N4/SiC/SiC) and 67.8% (C/SiC-SiC/Si3N4/SiC) after oxidation at 800 °C for 10 h.

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Section: Introduction mentioning

confidence: 99%

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

et al. 2022

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“…Refractory metals and their alloys, oxidation resistance modified C/SiC or C/C composites, ultrahigh temperature ceramics (UHTCs) and their composites are popular candidates for thermal protection materials [8][9][10][11][12][13]. Refractory metals and their alloys normally exhibit ideal high-temperature performance, but oxidation ablation resistance could be improved.…”

Section: Introduction mentioning

confidence: 99%

Using PyC modified 3D carbon fiber to reinforce UHTC under low temperature sintering without pressure

Cheng

Xun

et al. 2021

J Adv Ceram

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Finding the optimum balance between strength and toughness, as well as acquiring reliable thermal shock resistance and oxidation resistance, has always been the most concerned topic in the discussion of ultra-high temperature ceramic composites. Herein, PyC modified 3D carbon fiber is used to reinforce ultra-high temperature ceramic (UHTC). The macroscopic block composite with large size is successfully fabricated through low temperature sintering at 1300 °C without pressure. The prepared PyC modified 3D Cf/ZrC-SiC composites simultaneously possess excellent physical and chemical stability under the synergistic effect of PyC interface layer and low temperature sintering without pressure. The fracture toughness is increased in magnitude to 13.05 ± 1.72 MPa·m1/2 accompanied by reliable flexural strength of 251 ± 27 MPa. After rapid thermal shock spanning from room temperature (RT) to 1200 °C, there are no visible surface penetrating cracks, spalling, or structural fragmentation. The maximum critical temperature difference reaches 875 °C, which is nearly three times higher than that of traditional monolithic ceramics. The haunting puzzle of intrinsic brittleness and low damage tolerance are resolved fundamentally. Under the protection of PyC interface layer, the carbon fibers around oxide layer and matrix remain structure intact after static oxidation at 1500 °C for 30 min. The oxide layer has reliable physical and chemical stability and resists the erosion from fierce oxidizing atmosphere, ensuring the excellent oxidation resistance of the composites. In a sense, the present work provides promising universality in designability and achievement of 3D carbon fiber reinforced ceramic composites.

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“…[16][17][18][19][20] To tailor the frictional characteristics of C f /C-SiC composites, matrix modification is considered as a practical solution. [20][21][22][23][24][25][26][27][28][29][30] The matrix used for modification generally includes alloy and non-metal. As alloys introduced, friction and wear properties of C f /C-SiC, as a consequence, will be changed.…”

Section: Introductionmentioning

confidence: 99%

“…To tailor the frictional characteristics of C f /C‐SiC composites, matrix modification is considered as a practical solution 20‐30 . The matrix used for modification generally includes alloy and non‐metal.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Zhou

et al. 2021

Int J Applied Ceramic Tech

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Ternary Cu-Fe-Si alloy were applied to modify tribological behavior of carbon fiber/carbon-silicon carbide (C f /C-SiC) composites by reactive melt infiltration.Microstructures, physical properties and tribological properties on a full-scale train brake test rig of the modified composites were studied. Results indicate that both Cu and Fe-Si alloy as matrices lead to significantly enhanced thermal conductivity and compressive strength for C f /C-SiC composites. Moreover, the average friction coefficient of the modified composites is between 0.25 and 0.55, which is higher than that of copper metal matrix composites. In addition, the average volume wear rate of the modified composites is only 0.168 cm 3 /MJ. The C f /C-SiC composites modified by Cu and Fe-Si alloy with improved physical properties and tribological properties meet the technical requirement and show high application potential in express train brake systems.

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Ablation of C/SiC-HfC composite prepared by precursor infiltration and pyrolysis in plasma wind tunnel

Cited by 70 publications

References 42 publications

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Using PyC modified 3D carbon fiber to reinforce UHTC under low temperature sintering without pressure

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

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Ablation of C/SiC-HfC composite prepared by precursor infiltration and pyrolysis in plasma wind tunnel

Cited by 70 publications

References 42 publications

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Using PyC modified 3D carbon fiber to reinforce UHTC under low temperature sintering without pressure

Microstructures and tribological behaviors of Cf/C‐SiC composites tailored by Cu and Fe‐Si matrices

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Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices