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

doi:10.3724/SP.J.1077.2008.00219

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

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	219-222
Number of pages	4
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	23
Issue number	2
DOIs	https://doi.org/10.3724/SP.J.1077.2008.00219
State	Published - Mar 2008

Keywords

Ablative performances
C/C composites
Impact damage
SHPB

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10.3724/SP.J.1077.2008.00219

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title = "Effect of impact damage on ablative performances of the carbon/carbon composites",

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.",

keywords = "Ablative performances, C/C composites, Impact damage, SHPB",

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AU - Li, Shu Ping

AU - Li, Ke Zhi

AU - Li, Yu Long

AU - Yuan, Qin Lu

AU - Guo, Ling Jun

AU - He, Yong Gang

PY - 2008/3

Y1 - 2008/3

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AB - 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.

KW - Ablative performances

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KW - Impact damage

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

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Keywords

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