Effect of impact damage on ablative performances of the carbon/carbon composites

Shu Ping Li, Ke Zhi Li, Yu Long Li, Qin Lu Yuan, Ling Jun Guo, Yong Gang He

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The carbon felt/carbon (C/C) composites with 2wt% hafnium carbide were damaged by using a split Hopkinson pressure bar (SHPB) with the maximum impact loading of 137MPa or so, and the effect of dynamic impact damage on ablative properties of the C/C composites was investigated in oxyacetylene flame equipment with high velocity gas. The effect of impact damage on ablative mechanism of the composites was also discussed based on SEM observation. The results show that the linear ablation rate is increased by 118%, and the mass ablation rate is increased by 40% for the damaged C/C composites than those measured for the undamaged C/C composites.

Original languageEnglish
Pages (from-to)219-222
Number of pages4
JournalWuji Cailiao Xuebao/Journal of Inorganic Materials
Volume23
Issue number2
DOIs
StatePublished - Mar 2008

Keywords

  • Ablative performances
  • C/C composites
  • Impact damage
  • SHPB

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