SiC Nanowires Toughed HfC Ablative Coating for C/C Composites
In order to improve ablation resistance of carbon/carbon(C/C) composites,SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating.SiC nanowires grew randomly and had good combination with HfC coating.SiC nanowires toughed HfC coating had lower...
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| Veröffentlicht in: | Journal of materials science & technology 2015-01, Vol.31 (1), p.70-76 |
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| container_title | Journal of materials science & technology |
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| creator | Li, Hejun Wang, Yongjie Fu, Qiangang Chu, Yanhui |
| description | In order to improve ablation resistance of carbon/carbon(C/C) composites,SiC nanowires were prepared on C/C composites surface in prior through chemical vapor reaction before HfC coating.SiC nanowires grew randomly and had good combination with HfC coating.SiC nanowires toughed HfC coating had lower linear and mass ablation rates than original HfC coating.The surface was much flatter and exhibited smaller cracks in center region.The ablation mechanism of HfC coating has been changed by SiC nanowires.Thicker HfO2 fused layer was formed on the surface of the toughed HfC coating,which could provide efficient protection for C/C composites.Therefore,SiC nanowires toughed HfC coating behaved in better ablation resistance. |
| doi_str_mv | 10.1016/j.jmst.2014.03.024 |
| format | Article |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier); Alma/SFX Local Collection |
| subjects | Ablation Ablation performance Carbide Carbon Carbon-carbon composites Ceramic coating Chemical vapor deposition Coating composites Carb Corrosion resistance Hafnium oxide HFC Nanowires performance Carbon/carbon Silicon carbide |
| title | SiC Nanowires Toughed HfC Ablative Coating for C/C Composites |
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