The effects of carbon/carbon composites blasting treatment and modifying SiC coatings with SiC/ZrB2 on their oxidation and cyclic ablation performances
| Autor: | Qiangang Fu, Jia-Ping Zhang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science General Chemical Engineering medicine.medical_treatment Reinforced carbon–carbon Sintering 02 engineering and technology General Chemistry Substrate (electronics) engineering.material 021001 nanoscience & nanotechnology Ablation 01 natural sciences Corrosion Coating 0103 physical sciences medicine engineering General Materials Science Surface layer Composite material 0210 nano-technology Layer (electronics) |
| Zdroj: | Corrosion Science. 140:134-142 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2018.06.008 |
| Popis: | To enhance the oxidation and ablation performances of SiC coating, C/C composites with a porous surface layer were designed via blasting treatment and then followed by ZrB2 additive in the process of pressure-less reactive sintering. Cyclic ablation test using oxyacetylene torch from 1750 °C to room temperature showed that the coating possessed good ablation performance accompanying with the formation of Zr-O-Si glassy protective layer. The good sintering performance combined with the increased coating/substrate interfaces contributed to reduce the cyclic thermal stress and enhance the stability of the Zr-O-Si layer to the denudation of oxyacetylene torch, thus promoting the ablation performance. |
| Databáze: | OpenAIRE |
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