| TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers | |
| Guo, Xinshuang1,2; Zhang, Kexiang2; Cheng, Jianxiang3; He, Hui2,3; He, Lianlong2; Xu, Jian4 | |
| Corresponding Author | He, Hui(huihe@yzu.edu.cn) ; He, Lianlong(llhe@imr.ac.cn) |
| 2019-05-01 | |
| Source Publication | APPLIED SURFACE SCIENCE
 |
| ISSN | 0169-4332 |
| Volume | 475Pages:571-576 |
| Abstract | Accurate measurement of oxygen diffusion distances (ODDs) is important but difficult in the production of polyacrylonitrile (PAN)-based carbon fibers. Traditionally, the ODDs were deemed to be homogeneous in a single fiber and paid no attention. Herein, the skin widths of carbon fibers with the skin-core structure were proposed to assess the ODDs, and the ODDs were investigated by transmission electron microscopy. The ODDs were first found to be homogeneous for the commercially noncircular carbon fibers, while they were uniform in every direction for the circular single carbon fibers. The inhomogeneity of the ODDs was unrelated to the surface and cross-sectional morphologies of carbon fibers, and it was considered to result from the density difference at the edge of a single PAN precursor fiber. These findings not only deepen the understanding of the effect of the PAN precursor fiber shapes on the oxygen diffusion during stabilization, but also provide an opportunity for optimizing the stabilization conditions according to the density difference at the edges of single PAN precursor fibers. |
| Keyword | PAN-based carbon fiber Skin width Oxygen diffusion distances Inhomogeneity TEM |
| Funding Organization | Natural Science Foundation of China ; Science and Technology Project of Jiangxi Provincial Department of Education ; Key Technologies R&D Program of China |
| DOI | 10.1016/j.apsusc.2018.12.268 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of China[51771168] ; Science and Technology Project of Jiangxi Provincial Department of Education[GJJ171143] ; Key Technologies R&D Program of China[2011CB605803] ; Key Technologies R&D Program of China[2016YFC0209305] |
| WOS Research Area | Chemistry ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000458482100067 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131911 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | He, Hui; He, Lianlong |
| Affiliation | 1.Pingxiang Univ, Engn & Technol Res Ctr Environm Protect Mat & Equ, Pingxiang 337055, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225002, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Guo, Xinshuang,Zhang, Kexiang,Cheng, Jianxiang,et al. TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers[J]. APPLIED SURFACE SCIENCE,2019,475:571-576. |
| APA | Guo, Xinshuang,Zhang, Kexiang,Cheng, Jianxiang,He, Hui,He, Lianlong,&Xu, Jian.(2019).TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers.APPLIED SURFACE SCIENCE,475,571-576. |
| MLA | Guo, Xinshuang,et al."TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers".APPLIED SURFACE SCIENCE 475(2019):571-576. |
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