Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating
An Ir/HfC composite anti-ablation coating was designed by combining the oxygen barrier property of Ir with the ablation resistance of HfC. The Ir/HfC coating was prepared on graphite and was subjected to an ablation test in a plasma wind tunnel. The results show that the Ir/HfC coating passed an abl...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425014024 |
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| author | Fayuan Li Li’an Zhu Zhen Wang Yicong Ye Shuxin Bai Quancai Zhang Shun Li Zhouran Zhang Yu Tang |
| author_facet | Fayuan Li Li’an Zhu Zhen Wang Yicong Ye Shuxin Bai Quancai Zhang Shun Li Zhouran Zhang Yu Tang |
| author_sort | Fayuan Li |
| collection | DOAJ |
| description | An Ir/HfC composite anti-ablation coating was designed by combining the oxygen barrier property of Ir with the ablation resistance of HfC. The Ir/HfC coating was prepared on graphite and was subjected to an ablation test in a plasma wind tunnel. The results show that the Ir/HfC coating passed an ablation test of 2000∼2300 °C/2000 s + 2500 °C/200 s with no defects and the mass ablation rate was −2.3 × 10−5 g·cm−2·s−1. With combination of heat treatment experiments, it was found that the interfacial evolution of the coating released the stresses at the oxidation interface of the HfC coating while blocking the heat transfer to the Ir coating, promoting the Ir/HfC coating to exhibit excellent ablation resistance. The synergistic effect of each layer makes the Ir/HfC coating a thermal protection coating with ultra-high temperature and wide temperature range ablation resistance. |
| format | Article |
| id | doaj-art-bce5b4683ea6485eb52f2ccc20958c88 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-bce5b4683ea6485eb52f2ccc20958c882025-08-20T02:00:54ZengElsevierJournal of Materials Research and Technology2238-78542025-05-0136102221023310.1016/j.jmrt.2025.05.246Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coatingFayuan Li0Li’an Zhu1Zhen Wang2Yicong Ye3Shuxin Bai4Quancai Zhang5Shun Li6Zhouran Zhang7Yu Tang8Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaCorresponding author.; Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaCorresponding author.; Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaDepartment of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaCorresponding author.; Department of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaDepartment of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaDepartment of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaDepartment of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaDepartment of Materials Science and Engineering, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, PR ChinaAn Ir/HfC composite anti-ablation coating was designed by combining the oxygen barrier property of Ir with the ablation resistance of HfC. The Ir/HfC coating was prepared on graphite and was subjected to an ablation test in a plasma wind tunnel. The results show that the Ir/HfC coating passed an ablation test of 2000∼2300 °C/2000 s + 2500 °C/200 s with no defects and the mass ablation rate was −2.3 × 10−5 g·cm−2·s−1. With combination of heat treatment experiments, it was found that the interfacial evolution of the coating released the stresses at the oxidation interface of the HfC coating while blocking the heat transfer to the Ir coating, promoting the Ir/HfC coating to exhibit excellent ablation resistance. The synergistic effect of each layer makes the Ir/HfC coating a thermal protection coating with ultra-high temperature and wide temperature range ablation resistance.http://www.sciencedirect.com/science/article/pii/S2238785425014024Ir coatingHfC coatingPlasma sprayingWind tunnel ablationSynergistic effect |
| spellingShingle | Fayuan Li Li’an Zhu Zhen Wang Yicong Ye Shuxin Bai Quancai Zhang Shun Li Zhouran Zhang Yu Tang Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating Journal of Materials Research and Technology Ir coating HfC coating Plasma spraying Wind tunnel ablation Synergistic effect |
| title | Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating |
| title_full | Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating |
| title_fullStr | Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating |
| title_full_unstemmed | Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating |
| title_short | Wind tunnel ablation behaviors and synergistic effect of the Ir/HfC coating |
| title_sort | wind tunnel ablation behaviors and synergistic effect of the ir hfc coating |
| topic | Ir coating HfC coating Plasma spraying Wind tunnel ablation Synergistic effect |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425014024 |
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