4.7 Article

Ablation resistance of ZrC-based composite coating with multi-layer structure for carbon/carbon composites above 2200 °C

期刊

CORROSION SCIENCE
卷 207, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2022.110600

关键词

C; C composites; ZrC-based coating; Ablation resistance; Ablation times; Plasma spraying

资金

  1. National Natural Science Foundation of China [51802244]
  2. Shaanxi Province Postdoctoral Science Foundation [2017BSHEDZZ12]
  3. Key R&D Projects in Shaanxi Province of China [2020GY-303]

向作者/读者索取更多资源

The realization of functionalized coating design is an effective means to enhance the ablation resistance. A multi-layer structure coating based on ZrC composite was successfully developed and applied on the surface of SiC coated C/C composites. The coating demonstrated excellent ablation resistance for 240 s under harsh ablation environments with temperatures exceeding 2200 degrees C.
The realization of the functionalized design of the coating is an effective measure to improve the ablation resistance of the coating. ZrC-based composite with multi-layer structure coating was designed and successfully prepared on the surface of SiC coated C/C composites. The ablation resistance of coating under different ablation times was evaluated. Results show that although the integrity of the coating was destroyed, the area close to the substrate still maintains a dense structure with the extension of ablation time. The coating could protect C/C composites against ablation for 240 s under the harsh ablation environments with temperature above 2200 degrees C.

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