| 冲击损伤对C/C复合材料烧蚀性能的影响 |
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| 引用本文： | 李淑萍,李克智,李玉龙,袁秦鲁,郭领军,和永岗. 冲击损伤对C/C复合材料烧蚀性能的影响[J]. 无机材料学报, 2008, 23(2): 219-222. DOI: 10.3724/SP.J.1077.2008.00219 |
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| 作者姓名： | 李淑萍 李克智 李玉龙 袁秦鲁 郭领军 和永岗 |
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| 作者单位： | 西北工业大学 1. 材料学院; 2. 航空学院, 西安 710072 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) , 中国科协自然科学基础性项目 , 高科技学术期刊资助项目 , 国家自然科学基金 |
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| 摘 要： | 利用Split Hopkinson Pressure Bar(SHPB)装置, 对炭化铪含量为2wt％的C/C复合材料进行了载荷峰值为137MPa的动态冲击损伤, 采用氧乙炔烧蚀装置研究了冲击损伤对C/C复合材料烧蚀性能的影响, 并结合扫描电镜讨论了冲击损伤对样品烧蚀机理的影响. 研究结果表明: 与未受冲击的C/C复合材料相比, 冲击损伤后, 复合材料的质量烧蚀率增加了40％, 线烧蚀率增加了118％.
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| 关 键 词： | C/C复合材料 SHPB 冲击损伤 烧蚀特性 |
| 文章编号： | 1000-324X(2008)02-0219-04 |
| 收稿时间： | 2007-05-12 |
| 修稿时间： | 2007-05-12 |
Effect of Impact Damage on Ablative Performances of the Carbon/Carbon Composites |
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| LI Shu-Ping,LI Ke-Zhi,LI Yu-Long,YUAN Qin-Lu,GUO Ling-Jun,HE Yong-Gang. Effect of Impact Damage on Ablative Performances of the Carbon/Carbon Composites[J]. Journal of Inorganic Materials, 2008, 23(2): 219-222. DOI: 10.3724/SP.J.1077.2008.00219 |
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| Authors: | LI Shu-Ping LI Ke-Zhi LI Yu-Long YUAN Qin-Lu GUO Ling-Jun HE Yong-Gang |
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| Affiliation: | 1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China; 2. School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China |
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| 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. |
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| Keywords: | C/C composites SHPB impact damage ablative performances |
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