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Preparation and ablation resistance of ZrC nanowires-reinforced CVD-ZrC coating on sharp leading edge C/C composites

  • Bo Li
  • , Hejun Li
  • , Xiyuan Yao
  • , Xiaofei Zhu
  • , Ningkun Liu
  • Northwestern Polytechnical University Xian

科研成果: 期刊稿件文章同行评审

58 引用 (Scopus)

摘要

To improve the ablation resistance of sharp leading edge (SLE) C/C composites, the ZrC nanowires reinforced ZrC coating (ZrC-ZrCnws) was prepared by two-step CVD method. The preparation of ZrC nanowires and the microstructure, bonding strength, as well as ablation resistance of the ZrC-ZrCnws coating were studied. After the severe ablation, the SLE sample with ZrC-ZrCnws coating presented an excellent ablation resistance with the mass and linear ablation rates of only 0.59 ± 0.06 mg/s and −0.92 ± 0.09 μm/s, respectively. Such good ablation resistance was attributed to the incorporation of ZrC nanowires, which can inhibit the cracking of coating and form ZrO2 rod-like structures after oxidation, supporting the oxide layer to resist flame scouring.

源语言英语
文章编号152617
期刊Applied Surface Science
584
DOI
出版状态已出版 - 15 5月 2022

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