Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis
HfCSiC-modified carbon/carbon composite (C/C–HfCSiC) sharp leading edges (SLEs) were prepared via precursor infiltration and pyrolysis for potential hypersonic applications. The effect of SiC proportion on the ablation behavior of the SLEs under oxyacetylene flames with 2.38 MW/m2 and 4.18 MW/m2 w...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847824001047 |
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| author | Wei Li Junshuai Lv Jingtong Li Lingxiang Guo Yutai Zhang Xiaohong Shi Hejun Li |
| author_facet | Wei Li Junshuai Lv Jingtong Li Lingxiang Guo Yutai Zhang Xiaohong Shi Hejun Li |
| author_sort | Wei Li |
| collection | DOAJ |
| description | HfCSiC-modified carbon/carbon composite (C/C–HfCSiC) sharp leading edges (SLEs) were prepared via precursor infiltration and pyrolysis for potential hypersonic applications. The effect of SiC proportion on the ablation behavior of the SLEs under oxyacetylene flames with 2.38 MW/m2 and 4.18 MW/m2 was investigated. The preferred sample with a volume ratio of HfC to SiC of 0.74 possessed almost zero degradation (linear recession rate 0.6 μm/s) up to a temperature of 2371 °C. As the temperature increases to 2527 °C in the latter condition, the SLE with less SiC (the volume ratio of HfC to SiC is 1.10) exhibited a linear recession rate of 1.03 μm/s during cyclic ablation of 3 × 40 s. Relatively more SiC addition is favorable under lower heat flux due to the better oxygen barrier performance of the scale. However, superior ablation resistance is available under higher heat flux with less SiC addition due to the higher thermal stability of the resulting oxide scale. |
| format | Article |
| id | doaj-art-b1687bb5f9a6447790ec042ab5e88120 |
| institution | Kabale University |
| issn | 2352-8478 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj-art-b1687bb5f9a6447790ec042ab5e881202025-01-14T04:12:29ZengElsevierJournal of Materiomics2352-84782025-03-01112100879Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysisWei Li0Junshuai Lv1Jingtong Li2Lingxiang Guo3Yutai Zhang4Xiaohong Shi5Hejun Li6State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, China; Henan Key Laboratory of High Performance Carbon Fiber Reinforced Composites, Institute of Carbon Matrix Composites, Henan Academy of Sciences, Zhengzhou, 450046, China; Corresponding author. State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, China.State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light-Weight Composites, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.HfCSiC-modified carbon/carbon composite (C/C–HfCSiC) sharp leading edges (SLEs) were prepared via precursor infiltration and pyrolysis for potential hypersonic applications. The effect of SiC proportion on the ablation behavior of the SLEs under oxyacetylene flames with 2.38 MW/m2 and 4.18 MW/m2 was investigated. The preferred sample with a volume ratio of HfC to SiC of 0.74 possessed almost zero degradation (linear recession rate 0.6 μm/s) up to a temperature of 2371 °C. As the temperature increases to 2527 °C in the latter condition, the SLE with less SiC (the volume ratio of HfC to SiC is 1.10) exhibited a linear recession rate of 1.03 μm/s during cyclic ablation of 3 × 40 s. Relatively more SiC addition is favorable under lower heat flux due to the better oxygen barrier performance of the scale. However, superior ablation resistance is available under higher heat flux with less SiC addition due to the higher thermal stability of the resulting oxide scale.http://www.sciencedirect.com/science/article/pii/S2352847824001047C/C compositesSharp leading edgesHfCSiCPrecursor infiltration and pyrolysisAblation behavior |
| spellingShingle | Wei Li Junshuai Lv Jingtong Li Lingxiang Guo Yutai Zhang Xiaohong Shi Hejun Li Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis Journal of Materiomics C/C composites Sharp leading edges HfC SiC Precursor infiltration and pyrolysis Ablation behavior |
| title | Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis |
| title_full | Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis |
| title_fullStr | Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis |
| title_full_unstemmed | Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis |
| title_short | Superior ablation resistance of C/C–HfCSiC composite sharp leading edges above 2500 °C prepared by precursor infiltration and pyrolysis |
| title_sort | superior ablation resistance of c c hfcsic composite sharp leading edges above 2500 °c prepared by precursor infiltration and pyrolysis |
| topic | C/C composites Sharp leading edges HfC SiC Precursor infiltration and pyrolysis Ablation behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2352847824001047 |
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