Surface modification of carbon/carbon composites and in-situ grown SiC nanowires to enhance the thermal cycling performance of Si-Mo-Cr coating under parallel oxyacetylene torch
| Autor: | Jiaping Zhang, Hua-Shan Zhou, Jun-Ling Qu, Qiangang Fu, Ning-Kun Liu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science General Chemical Engineering Nanowire Reinforced carbon–carbon 02 engineering and technology General Chemistry Substrate (electronics) Temperature cycling engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Thermal expansion Corrosion Coating 0103 physical sciences engineering Surface modification General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Corrosion Science. 111:667-674 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2016.06.007 |
| Popis: | Before the preparation of Si-Mo-Cr coating, blasting treatment of C/C composites and in-situ grown SiC nanowires were performed. Compared with the coated C/C composites without SiC nanowires, the bonding strength of Si-Mo-Cr coating was increased by 5.7%, and the mass loss per unit area was reduced by 46.39% after 30 thermal cycles between 1600 °C and room temperature. The performance enhancement can be attributed to the improved bonding strength and the alleviation of mismatch of thermal expansion coefficient between C/C substrate and Si-Mo-Cr coating, thereby decreasing the thermal stress during thermal cycles between high and low temperatures. |
| Databáze: | OpenAIRE |
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