Ablation resistance and mechanical properties of C/C-HfC-SiC composites with a bulletproof-like layer

Zhiqiang Liu, Yujun Jia, Shubo Zhang, Jian Zhang, Jingtong Li, Luncheng Tang, Jiaping Zhang, Qiangang Fu

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Two structural designs are based on the arapaima fish scale structure to enhance the performance of composites. A double-layer SiC/PyC coating was deposited to modify C/C-HfC-SiC composites by chemical vapor deposition. The introduction of PyC coating reduced the porosity and roughness of composites. Ar-O2-Al2O3 plasma ablation system was used to assess the composites. The composites with arapaima fish scale structure showed good flexural and ultra-temperature particle erosion resistance. The samples with the introduction of PyC layer showed higher flexural strength of 220 MPa, which is 40.13 % higher than that of without. After ablation 40 s, the linear ablation rates decreased from 5.95 μm/s to −4.6 μm/s. This study provides new ideas to develop C/C composites with improved ablation-resistant and mechanical properties.

Original languageEnglish
Pages (from-to)49480-49489
Number of pages10
JournalCeramics International
Volume50
Issue number23
DOIs
StatePublished - 1 Dec 2024

Keywords

  • Ablation
  • C/C composites
  • Flexural strength
  • Reactive melt infiltration

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