Investigation of PAN-based carbon fiber microstructure by 2D-SAXS
文献类型：期刊论文
| 作者 | Sheng, Y; Zhang, CH; Xu, Y; Lu, CX; Wu, GP; Wu, ZH; Li, ZH; Wu ZH(吴忠华) ; Li ZH(李志宏)
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| 刊名 | NEW CARBON MATERIALS
 |
| 出版日期 | 2009 |
| 卷号 | 24期号:3页码:#REF! |
| 关键词 | SAXS Carbon fibers Porestructure Fractal dimension Density fluctuation |
| 其他题名 | 二维小角X射线散射法研究PAN基炭纤维内部微孔结构 |
| 通讯作者 | Xu, Y (reprint author), Chinese Acad Sci, Key Lab Carbon Mat, Inst Coal Chem, Taiyuan 030001, Peoples R China. |
| 英文摘要 | Two dimensional small angle X-ray scattering (2D-SAXS) was used to characterize the detailed pore structure inside carbon fibers from different azimuth angles. Chinese PAN carbon fibers (MHS) and Japanese carbon fibers (T300 and T800) were investigated and compared by assuming ellipsoidal pores. The pore size of MHS was found to be between those of T300 and T800. Meanwhile, the length/diameter ratio (t) of pores of MHS was the smallest among the three kinds of fibers. Compared to MHS, T300 had a large amount of pores with sizes less than 9.1 nm and larger than 15.4 nm. T800 mainly contained small pores with size less than 2 nm along the short axis. The surface fractal dimension indicated that the interface between pore and solid carbon in MHS was rougher than for T300 and smoother than for T800. The large deviation from the Porod law indicated that there was an electron density fluctuation within the solid matrix of the carbon fibers. This electron density fluctuation was possibly due to the cavities between micro-crystallines in the carbon matrix. Among the three kinds of fibers the weakest density fluctuation occurred in T800 and the density fluctuation amplitude F and dimension n decreased from MHS to T300 to T800. Therefore, T800 had the most favorable pore arrangement to improve mechanical strength. |
| 学科主题 | Materials Science |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 收录类别 | SCI |
| WOS记录号 | WOS:000270411900009 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227312]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Sheng, Y,Zhang, CH,Xu, Y,et al. Investigation of PAN-based carbon fiber microstructure by 2D-SAXS[J]. NEW CARBON MATERIALS,2009,24(3):#REF!. |
| APA | Sheng, Y.,Zhang, CH.,Xu, Y.,Lu, CX.,Wu, GP.,...&李志宏.(2009).Investigation of PAN-based carbon fiber microstructure by 2D-SAXS.NEW CARBON MATERIALS,24(3),#REF!. |
| MLA | Sheng, Y,et al."Investigation of PAN-based carbon fiber microstructure by 2D-SAXS".NEW CARBON MATERIALS 24.3(2009):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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