| 炭纳米纤维添加剂对炭/炭复合材料力学性能影响 |
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| 引用本文： | 李进松,罗瑞盈,马婷婷,白树林. 炭纳米纤维添加剂对炭/炭复合材料力学性能影响[J]. 炭素技术, 2006, 25(4): 1-5 |
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| 作者姓名： | 李进松 罗瑞盈 马婷婷 白树林 |
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| 作者单位： | 1. 北京航空航天大学,理学院材料物理与化学研究中心,北京,100083
2. 北京大学,工学院力学与工程科学系,北京,100871 |
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| 基金项目： | 北京大学校科研和教改项目;教育部跨世纪优秀人才培养计划;北京市科技计划;中国科学院基金 |
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| 摘 要： | 采用等温CVI工艺制备出5种不同炭纳米纤维含量（质量分数分别为0，5％，10％，15％和20％）的炭／炭复合材料。发现添加炭纳米纤维的炭／炭复合材料具有很高的力学性能，在加入炭纳米纤维为5％时，相对于没有添加炭纳米纤维的炭／炭复合材料，弯曲强度增大了76．3％，弹性模量增大了55．5％，但添加量增大到20％时，强度和模量都逐渐降低。
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| 关 键 词： | 炭/炭复合材料 炭纳米纤维 力学性能 |
| 文章编号： | 1001-3741（2006）04-0001-05 |
| 收稿时间： | 2006-03-01 |
| 修稿时间： | 2006-03-01 |
EFFECT OF CARBON NANOFIBERS ADDITION ON DENSIFICATION AND MECHANICAL PROPERTIES OF CARBON/CARBON COMPOSITES |
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| LI Jin-song,LUO Rui-ying,MA Ting-ting,BAI Shu-lin. EFFECT OF CARBON NANOFIBERS ADDITION ON DENSIFICATION AND MECHANICAL PROPERTIES OF CARBON/CARBON COMPOSITES[J]. Carbon Techniques, 2006, 25(4): 1-5 |
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| Authors: | LI Jin-song LUO Rui-ying MA Ting-ting BAI Shu-lin |
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| Affiliation: | 1. College of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083, China; 2. Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China |
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| Abstract: | Five carbon nanofiber(CNFs)reinforced carbon composites containing 0,5%,10%,15% and 20% CNFs were prepared in order to investigate the effect of CNFs addition on the performance of C/C composites.The results show that the CNF-reinforced carbon composites exhibit higher mechanical properties than the composites without CNFs addition,the flexural strength of the composite with 5% of CNFs is increased by nearly 76.3% and the flexural modulus is increased by nearly 55.5% compared to that of the composite containing no CNFs.Increasing the CNFs content to 20%,both the flexural strength and flexural modulus decrease from their maximum values at 5% loading. |
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| Keywords: | Carbon/Carbon composite carbon nanofibors mechanical properties |
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