Ablation resistance of SiC–ZrC coating prepared by a simple two-step method on carbon fiber reinforced composites
| Autor: | Hejun Li, Xiao-Jun Hu, Lei Liu, Jun-Hao Huo, Xiaohong Shi, Jun-Liang Zhu, Meng-Yan Li, Qiangang Fu, Lingjun Guo |
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| Rok vydání: | 2014 |
| Předmět: |
Volatilisation
Materials science General Chemical Engineering medicine.medical_treatment Two step Carbon fibers General Chemistry engineering.material Ablation Cementation (geology) Corrosion Coating visual_art visual_art.visual_art_medium medicine Slurry engineering General Materials Science Composite material |
| Zdroj: | Corrosion Science. 88:49-55 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2014.07.014 |
| Popis: | SiC–ZrC ablation resistance coating was prepared on the surface of carbon fiber reinforced carbon (C/C) composites by simple pack cementation combined with low-cost slurry infiltration method. The results showed that SiC–ZrC coating could effectively protect C/C composites from ablation for 45 s at 3723 K under oxyacetylene torch. The mass and linear ablation rates (0.038 ± 0.01 mg/(s cm 2 ) and 2.42 ± 0.15 μm/s) were largely reduced compared with that of uncoated C/C composites (0.530 ± 0.01 mg/(s cm 2 ) and 1.75 ± 0.15 μm/s) after ablation for 20 s. The good ablation protective ability of SiC–ZrC coating is mainly attributed to the volatilization of SiO 2 and the formation of ZrO 2 . |
| Databáze: | OpenAIRE |
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