Anti-oxidation property of the ZrB2-SiC-Si-coated low-density C/C composites

作者：Feng, T.^*; Li, H. -J.; Hu, M. -H.; Lin, H. -J.; Li, L.

来源：Surface Engineering, 2018, 34(1): 40-46.

DOI：10.1080/02670844.2016.1186368

• Carbon/carbon composites
• coating
• low density
• oxidation
• ablation

ZrB2-SiC-Si-coated low-density C/C composites were prepared by a low-cost and simple pack cementation. The microstructure, oxidation and ablation resistance of the ZrB2-SiC-Si-coated low-density C/C composites have been investigated. The ZrB2-SiC-Si-coated low-density C/C composites exhibited good oxidation, thermal shock and ablation resistance at high temperature. The mass loss of the coated low-density C/C samples was only 0.68% at 1773 K for more than 260 h. The mass gain of the coated low-density C/C samples was 1.5% after 50 thermal cycles. The coated low-density composites could also withstand from ablation at 2573 K for 60 s under oxyacetylene flame. The good oxidation and ablation resistance of the composites are mainly attributed to the interlocking-pattern structure and the protection of the oxide layer.

• 出版日期2018
• 单位西北工业大学