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Oxidation and ablation properties of ZrB2-SiC based coating for carbon/carbon composites by supersonic plasma spraying

  • Junjie Ren
  • , Xiyuan Yao
  • , Kezhi Li
  • , Dongjia Yao
  • Northwestern Polytechnical University Xian

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The ZrB2-SiC based multilayer coating for carbon/carbon composites was prepared by pack cementation, supersonic plasma spraying and chemical vapor deposition. The microstructures of the as-prepared multi-layer coating were characterized by XRD and SEM. The anti-oxidation and ablation properties of coated composites were investigated by isothermal oxidation test and oxyacetylene flame test. The results show that the as-coated samples can provide good oxidation protection at 900, 1100, 1500℃. After oxyacetylene ablation for 60 s, the mass and linear ablation rates are-0.05 mg/s and 0.56 μm/s, respectively. The prepared ZrB2-SiC based coating can provide good ablation protection for C/C composites, and combined oxidation protection at a wide temperature range.

Original languageEnglish
Pages (from-to)75-80
Number of pages6
JournalMaterials China
Volume36
Issue number1
DOIs
StatePublished - 1 Jan 2017

Keywords

  • Anti-ablation
  • Anti-oxidation
  • Carbon/carbon composites
  • ZrB-SiC

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