Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying
HfC-SiC protective coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying due to the high arc temperature and the efficient deposition rate. The morphology and microstructure of the HfC-SiC coating were analyzed by X-ray diffraction and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2019-08-01
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| Series: | Advanced Composites Letters |
| Online Access: | https://doi.org/10.1177/0963693519869944 |
| _version_ | 1818502354708725760 |
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| author | Yang Yang Kezhi Li Chun Zhao |
| author_facet | Yang Yang Kezhi Li Chun Zhao |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | HfC-SiC protective coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying due to the high arc temperature and the efficient deposition rate. The morphology and microstructure of the HfC-SiC coating were analyzed by X-ray diffraction and scanning electron microscopy. The results showed that Hf and Si elements distributed uniformly in the coating and the coating was dense without crack. Ablation resistance test was processed by oxyacetylene torch. During the ablation process, the sintering rate of HfO 2 was slow, and more oxygen diffused into the internal coating, which caused the oxidation of the internal coating and damaged the structure of internal coating in the ablation center region. In addition, during cooling process, a new phase HfSiO 4 was generated by the reaction between HfO 2 and SiO 2 , which acted as a pinning agent to prevent the further expansion of the crack. |
| first_indexed | 2024-12-10T21:09:08Z |
| format | Article |
| id | doaj.art-89c37ef1666441579725d958674dc0ef |
| institution | Directory Open Access Journal |
| issn | 0963-6935 |
| language | English |
| last_indexed | 2024-12-10T21:09:08Z |
| publishDate | 2019-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advanced Composites Letters |
| spelling | doaj.art-89c37ef1666441579725d958674dc0ef2022-12-22T01:33:32ZengSAGE PublishingAdvanced Composites Letters0963-69352019-08-012810.1177/0963693519869944Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma sprayingYang Yang0Kezhi Li1Chun Zhao2 Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi’an, China Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi’an, China Yuncheng University, Yuncheng, ChinaHfC-SiC protective coating was deposited on the surface of SiC-coated carbon/carbon composites by supersonic atmospheric plasma spraying due to the high arc temperature and the efficient deposition rate. The morphology and microstructure of the HfC-SiC coating were analyzed by X-ray diffraction and scanning electron microscopy. The results showed that Hf and Si elements distributed uniformly in the coating and the coating was dense without crack. Ablation resistance test was processed by oxyacetylene torch. During the ablation process, the sintering rate of HfO 2 was slow, and more oxygen diffused into the internal coating, which caused the oxidation of the internal coating and damaged the structure of internal coating in the ablation center region. In addition, during cooling process, a new phase HfSiO 4 was generated by the reaction between HfO 2 and SiO 2 , which acted as a pinning agent to prevent the further expansion of the crack.https://doi.org/10.1177/0963693519869944 |
| spellingShingle | Yang Yang Kezhi Li Chun Zhao Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying Advanced Composites Letters |
| title | Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying |
| title_full | Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying |
| title_fullStr | Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying |
| title_full_unstemmed | Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying |
| title_short | Ablation mechanism and morphology evolution of the HfC-SiC coating for C/C composites deposited by supersonic atmospheric plasma spraying |
| title_sort | ablation mechanism and morphology evolution of the hfc sic coating for c c composites deposited by supersonic atmospheric plasma spraying |
| url | https://doi.org/10.1177/0963693519869944 |
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