Fabrication and mechanical/conductive properties of multi-walled carbon nanotube (mvnt) reinforced carbon matrix composites
文献类型：期刊论文
| 作者 | Gao, XQ; Liu, L; Guo, QG; Shi, JL; Zhai, GT |
| 刊名 | Materials letters
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 59期号:24-25页码:3062-3065 |
| 关键词 | Carbon nanotubes Mesophase pitch Heat treatment Mechanical properties Thermal conductivity |
| ISSN号 | 0167-577X |
| DOI | 10.1016/j.matlet.2005.05.021 |
| 通讯作者 | Gao, xq(ggaaxxqq@sohu.com) |
| 英文摘要 | Multi-walled carbon nanotube (mwnt) reinforced carbon matrix (mwnt/c) composites have been explored using mesophase pitch as carbon matrix precursor in the present work. results show that carbon nanotubes (cnts)can enhance the mechanical properties of carbon matrix significantly. the maximal increment of the bending strength and stiffness of the composites, compared with the carbon matrix, are 147% and 400%, respectively. whereas the highest in-plane thermal conductivity of the composites is 86 w m(-1) k-1 which much lower than that of carbon matrix (253 w m(-1) k-1). at the same time the electrical resistivity of the composites is much higher than that of matrix. it is implicated that cnts seem to play the role of thermal/electrical barrier in the composites. fsem micrograph of the fracture surface for the composites shows that the presence of cnts restrains the crystallite growth of carbon matrix, which is one of factors that improve mechanical properties and decrease the conductive properties of the composites. the defects and curved shape of cnts are also the affecting factors on the conductive properties of the composites. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | HIGH-THERMAL-CONDUCTIVITY ; GRAPHITE ; FIBERS ; MESOPHASE |
| WOS研究方向 | Materials Science ; Physics |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000231365800020 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377509 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Gao, XQ |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, XQ,Liu, L,Guo, QG,et al. Fabrication and mechanical/conductive properties of multi-walled carbon nanotube (mvnt) reinforced carbon matrix composites[J]. Materials letters,2005,59(24-25):3062-3065. |
| APA | Gao, XQ,Liu, L,Guo, QG,Shi, JL,&Zhai, GT.(2005).Fabrication and mechanical/conductive properties of multi-walled carbon nanotube (mvnt) reinforced carbon matrix composites.Materials letters,59(24-25),3062-3065. |
| MLA | Gao, XQ,et al."Fabrication and mechanical/conductive properties of multi-walled carbon nanotube (mvnt) reinforced carbon matrix composites".Materials letters 59.24-25(2005):3062-3065. |
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来源：中国科学院大学
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