TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers

doi:10.1016/j.apsusc.2018.12.268

IMR OpenIR

	TEM study on the inhomogeneity of oxygen diffusion distances in single polyacrylonitrile-based carbon fibers
	Guo, Xinshuang 1,2; Zhang, Kexiang 2; Cheng, Jianxiang 3; He, Hui 2,3; He, Lianlong 2; Xu, Jian 4
通讯作者	He, Hui(huihe@yzu.edu.cn) ; He, Lianlong(llhe@imr.ac.cn)
	2019-05-01
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	475 页码:571-576
摘要	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.
关键词	PAN-based carbon fiber Skin width Oxygen diffusion distances Inhomogeneity TEM
资助者	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
收录类别	SCI
语种	英语
资助项目	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研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000458482100067
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131911
专题	中国科学院金属研究所
通讯作者	He, Hui; He, Lianlong
作者单位	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
推荐引用方式 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.