التفاصيل البيبلوغرافية
| العنوان: |
Ablation behavior of C/C–Zr1-xHfxC-SiC composites under an oxyacetylene flame at above 2500 °C |
| المؤلفون: |
Xiaoyang Jiao, Qinchuan He, Mingcong Qing, Yiqun Wang, Xuemin Yin |
| المصدر: |
Journal of Materials Research and Technology, Vol 24, Iss , Pp 3235-3251 (2023) |
| بيانات النشر: |
Elsevier, 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Mining engineering. Metallurgy |
| مصطلحات موضوعية: |
C/C composites, Zr1-xHfxC solid solution, Composition, Microstructure, Ablation behavior, Mining engineering. Metallurgy, TN1-997 |
| الوصف: |
In order to enhance ablation resistance of C/C composites, Zr1-xHfxC and SiC were introduced into C/C composites, and ablation behavior of the composites was studied. In the composites (CHZS), HfC and ZrC produced a solid solution, and solid solubility of HfC in ZrC was 0.4, which indicated that the solid solution was defined to be Zr0.6Hf0.4C. Compared with C/C–ZrC–SiC composites (CZS), CHZS possessed a better ablation resistance. During ablation of CHZS, Zr0.6Hf0.4C is oxidized to produce HfO2 and ZrO2, and HfO2 particles played a pinning effect, which fixed molten oxide coating. Moreover, due to low CTE of HfO2 and decreasing content of ZrO2, there was a smaller thermal stress and its distribution area on CHZS ablation surface, thus thermal stress corrosion was weakened to strengthen integrity of oxide coating. In this case, a complete and continuous HfO2-ZrO2 coating was formed on CHZS surface, which could resist oxygen diffusion and reduce oxidation rate of the composites. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2238-7854 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2238785423006713; https://doaj.org/toc/2238-7854 |
| DOI: |
10.1016/j.jmrt.2023.03.208 |
| URL الوصول: |
https://doaj.org/article/af062831f894426783cddc5971e045a7 |
| رقم الانضمام: |
edsdoj.f062831f894426783cddc5971e045a7 |
| قاعدة البيانات: |
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