Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C
Solid and liquid oxidation products have been considered to be the key issues to influence the ablation resistance of UHTCs coatings. However, the effect of solid oxidation products on the ablation performance is not clear. In the present work, four kinds of UHTCs coatings (ZrC, ZrC-30vol.%SiC, HfC,...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422019305 |
| _version_ | 1797942992828366848 |
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| author | Yixiang Xu Xiaohui Pan Shansong Huang XueTing Xu Yaran Niu Xin Zhong Xuebin Zheng |
| author_facet | Yixiang Xu Xiaohui Pan Shansong Huang XueTing Xu Yaran Niu Xin Zhong Xuebin Zheng |
| author_sort | Yixiang Xu |
| collection | DOAJ |
| description | Solid and liquid oxidation products have been considered to be the key issues to influence the ablation resistance of UHTCs coatings. However, the effect of solid oxidation products on the ablation performance is not clear. In the present work, four kinds of UHTCs coatings (ZrC, ZrC-30vol.%SiC, HfC, HfC-30vol.%SiC) were selected to study the effect of different solid oxides on the ablation behaviors of UHTCs coatings. The results showed that the HfC-based coatings had thinner oxide scale and SiC-depleted layer, which shown better ablation resistance than the ZrC-based coatings. Based on the characterization of oxygen vacancy and density functional theory (DFT) calculation, it is thought that the solid oxidation products of HfO2 possesses higher defect formation energy compared with ZrO2, which can help to restrain the diffusion of oxygen and contribute to the better ablation resistance. |
| first_indexed | 2024-04-10T20:17:21Z |
| format | Article |
| id | doaj.art-0a1dac9e53264d95985625f372471637 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:17:21Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-0a1dac9e53264d95985625f3724716372023-01-26T04:46:08ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012219001910Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°CYixiang Xu0Xiaohui Pan1Shansong Huang2XueTing Xu3Yaran Niu4Xin Zhong5Xuebin Zheng6Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Corresponding author.Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Corresponding author.Solid and liquid oxidation products have been considered to be the key issues to influence the ablation resistance of UHTCs coatings. However, the effect of solid oxidation products on the ablation performance is not clear. In the present work, four kinds of UHTCs coatings (ZrC, ZrC-30vol.%SiC, HfC, HfC-30vol.%SiC) were selected to study the effect of different solid oxides on the ablation behaviors of UHTCs coatings. The results showed that the HfC-based coatings had thinner oxide scale and SiC-depleted layer, which shown better ablation resistance than the ZrC-based coatings. Based on the characterization of oxygen vacancy and density functional theory (DFT) calculation, it is thought that the solid oxidation products of HfO2 possesses higher defect formation energy compared with ZrO2, which can help to restrain the diffusion of oxygen and contribute to the better ablation resistance.http://www.sciencedirect.com/science/article/pii/S2238785422019305ZrC coatingHfC coatingAblation resistanceOxide behaviorSolid products |
| spellingShingle | Yixiang Xu Xiaohui Pan Shansong Huang XueTing Xu Yaran Niu Xin Zhong Xuebin Zheng Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C Journal of Materials Research and Technology ZrC coating HfC coating Ablation resistance Oxide behavior Solid products |
| title | Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C |
| title_full | Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C |
| title_fullStr | Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C |
| title_full_unstemmed | Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C |
| title_short | Effect of solid oxidation products on the ablation mechanisms of ZrC and HfC based coatings above 2000°C |
| title_sort | effect of solid oxidation products on the ablation mechanisms of zrc and hfc based coatings above 2000°c |
| topic | ZrC coating HfC coating Ablation resistance Oxide behavior Solid products |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019305 |
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