Ablation resistance of SiC–ZrC coating prepared by a simple two-step method on carbon fiber reinforced composites.
- Resource Type
- Article
- Authors
- Shi, Xiao-Hong; Huo, Jun-Hao; Zhu, Jun-Liang; Liu, Lei; Li, He-Jun; Hu, Xiao-Jun; Li, Meng-Yan; Guo, Ling-Jun; Fu, Qian-Gang
- Source
- Corrosion Science. Nov2014, Vol. 88, p49-55. 7p.
- Subject
- *SILICON carbide
*METAL coating
*CARBON fibers
*CARBON composites
*CEMENTATION (Metallurgy)
*ZIRCONIUM
- Language
- ISSN
- 0010-938X
SiC–ZrC ablation resistance coating was prepared on the surface of carbon fiber reinforced carbon (C/C) composites by simple pack cementation combined with low-cost slurry infiltration method. The results showed that SiC–ZrC coating could effectively protect C/C composites from ablation for 45 s at 3723 K under oxyacetylene torch. The mass and linear ablation rates (0.038 ± 0.01 mg/(s cm 2 ) and 2.42 ± 0.15 μm/s) were largely reduced compared with that of uncoated C/C composites (0.530 ± 0.01 mg/(s cm 2 ) and 1.75 ± 0.15 μm/s) after ablation for 20 s. The good ablation protective ability of SiC–ZrC coating is mainly attributed to the volatilization of SiO 2 and the formation of ZrO 2 . [ABSTRACT FROM AUTHOR]