Effect of loading spectrum with different single pulsing time on the cyclic ablation of C/C-SiC-ZrB2-ZrC composites in plasma

Liu, Lei; Feng, Wei; Tang, Chengwei; Zhang, Jiaping; Yao, Xiyuan; Yang, Zhong; Guo, Yongchun; Wang, Ping; Zhang, Yang

doi:10.1016/j.corsci.2021.109817

Cited by 23 publications

(4 citation statements)

References 44 publications

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“…In other words, the longer single loading time (5 s) of plasma was more destructive to the C/C-SiC-ZrC composite than the higher frequency (0.5 s) when the total time was certain. This was similar to our previous study on C/C-SiC-ZrB 2 -ZrC [ 34 ], and the C/C-SiC-ZrC presented higher sensitivity to the single loading time in the view of linear ablation rates. However, their mass ablation rates were the opposite.…”

Section: Resultssupporting

confidence: 91%

“…Other studies [ 32 , 33 ] suggested that shorter single loading times resulted in higher cyclic ablation rates for the strengthened thermal shock. Recently, cyclic ablation of C/C-SiC-ZrC-ZrB 2 under different loading spectra indicated that the ablation rates rose sharply as the single loading time increased from ms to s [ 34 ]. The preceding works raised an intriguing issue concerning thermal shock in ultra-high temperature conditions, higher frequency for more times versus fewer cycles of longer single loading, which is more destructive to the C/C-SiC-ZrC composite.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

et al. 2022

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To understand the influence of single loading time on the cyclic ablation of carbide modified C/C composites, a C/C-SiC-ZrC composite was impacted by plasma at 2600 K for 50 s under reciprocating 0.5 (C0.5) and 5 s (C5), respectively. The composites displayed similar negative mass and rising positive linear ablation rates from C0.5 to C5. Phases, micro-morphologies, and surface temperature analysis suggested that the partially oxidized SiC-ZrC covering on the ablated sample cracked and was persistently peeled off. The mass gain resulted from the ceramic’s protection of the nearby carbon from complete oxidation. The longer single loading of 5 s caused strengthened thermal chemical reaction and mechanical erosion, which resulted in the bigger linear loss.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

et al. 2022

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“…[16][17][18] Continuous fiber reinforced ultrahigh temperature ceramic matrix composites (UHTCMCs) exhibit excellent ablation resistance due to the existence of UHTCs matrix. [19][20][21] Fiber reinforcement improves the thermal shock resistance and reliability of UHTCMCs through bearing load and deflecting cracks. [16,22,23] These unique properties make UHTCMCs the leading candidates for use in extreme service environment on the next generation hypersonic vehicles.…”

Section: Introductionmentioning

confidence: 99%

Engineering C_f/ZrB₂‐SiC‐Y₂O₃ for Thermal Structures of Hypersonic Vehicles with Excellent Long‐Term Ultrahigh Temperature Ablation Resistance

Chen,

Ni,

Bao

et al. 2023

Advanced Science

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Ultrahigh temperature ceramic matrix composites (UHTCMCs) are critical for the development of high Mach reusable hypersonic vehicles. Although various materials are utilized as the thermal components of hypersonic vehicles, it is still challenging to meet the ultrahigh temperature ablation‐resistant and reusability. Herein, the Y2O3 reinforced Cf/ZrB2‐SiC composites are designed, which demonstrates near‐zero damage under long‐term ablation at temperatures up to 2500 °C for ten cycles. Notably, the linear ablation rate of the composites (0.33 µm s−1) is over 24 times better than that of the conventional Cf/C‐ZrC at 2500 °C (8.0 µm s−1). Moreover, the long‐term multi‐cycle ablation mechanisms of the composites are investigated with the assistance of DFT calculations. Especially, the size effect and the content of the Zr‐based crystals in the oxide layer fundamentally affect the stability of the oxide layer and the ablation properties. The ideal component and structure of the oxide layer for multi‐cycle ablation condition are put forward, which can be obtained by controlling the Y2O3/ZrB2 mole ratio and establishing Y‐Si‐O – t‐Zr0.9Y0.1O1.95 core‐shell nano structure. This work proposes a new strategy for improving the long‐term multi‐cycle ablation resistance of UHTCMCs.

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“…In order to expand its application field at higher temperatures, ultrahigh-temperature ceramics (UHTCs) of transition metals (Zr, Hf, Ta, Hf, etc.) [ 24 ] with melting points over 3000 °C have been used in combination with SiC ceramics [ 25 , 26 , 27 , 28 , 29 ], which are referred to as Si-based ceramics. Recently, the ablation and oxidation behaviors of fiber-reinforced Si-based ceramic composites with different fiber structures as reinforcement, including whiskers, particles, and preforms, have been investigated [ 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Advances in Ablation or Oxidation Mechanisms and Behaviors of Carbon Fiber-Reinforced Si-Based Composites

et al. 2023

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Composites with excellent thermomechanical and thermochemical properties are urgently needed in the aerospace field, especially for structural applications under high-temperature conditions. Carbon fiber-reinforced Si-based composites are considered the most promising potential high-temperature materials due to their excellent oxidation resistance and ablative behaviors, good structural designability, and excellent mechanical properties. The reinforcement of the relevant composites mainly involves carbon fiber, which possesses good mechanical and temperature resistance abilities. In this paper, the ablation behaviors and mechanisms of related composites are reviewed. For carbon fiber-reinforced pure Si-based composites (C/SiM composites), the anti-ablation mechanism is mainly attributed to the continuous glassy SiO2, which inhibits the damage of the substrate. For C/SiM composite doping with refractory metal compounds, the oxides of Si and refractory metal together protect the main substrate from ablation and oxidation. Moreover, in addition to thermochemical damage, thermophysical and thermomechanical behavior severely destroy the surface coating of the substrate.

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Effect of loading spectrum with different single pulsing time on the cyclic ablation of C/C-SiC-ZrB2-ZrC composites in plasma

Cited by 23 publications

References 44 publications

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

Engineering C_f/ZrB₂‐SiC‐Y₂O₃ for Thermal Structures of Hypersonic Vehicles with Excellent Long‐Term Ultrahigh Temperature Ablation Resistance

Advances in Ablation or Oxidation Mechanisms and Behaviors of Carbon Fiber-Reinforced Si-Based Composites

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Effect of loading spectrum with different single pulsing time on the cyclic ablation of C/C-SiC-ZrB2-ZrC composites in plasma

Cited by 23 publications

References 44 publications

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

Effect of Single Loading Time to the Cyclic Ablation of C/C-SiC-ZrC Composite

Engineering Cf/ZrB2‐SiC‐Y2O3 for Thermal Structures of Hypersonic Vehicles with Excellent Long‐Term Ultrahigh Temperature Ablation Resistance

Advances in Ablation or Oxidation Mechanisms and Behaviors of Carbon Fiber-Reinforced Si-Based Composites

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Engineering C_f/ZrB₂‐SiC‐Y₂O₃ for Thermal Structures of Hypersonic Vehicles with Excellent Long‐Term Ultrahigh Temperature Ablation Resistance