Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation

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	Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation
	G. Zhou; J. H. Byun; S. B. Lee; J. W. Yi; W. Lee; S. K. Lee; B. S. Kim; J. K. Park; S. G. Lee; L. L. He
	2014
发表期刊	Carbon
ISSN	0008-6223
卷号	76 页码:232-239
摘要	The effects of inner microstructures, including crystallite size, orientation and defects on the stiffening phenomena of PAN-based T300 carbon fibers under tension were explored. Single-fiber tensile test was conducted on three types of fiber: as received, 1400 and 1600 C heat treated. The distribution of crystallite orientation in a fiber from core to skin was obtained by using transmission electron microscopy. The observations indicate the load-transfer between crystallites depends on the crystallite entanglement. The slide-lock of the entangled junctions among the loosely compacted crystallites is responsible for the increasing elastic modulus during tension. The sharp drop of tensile strength (-36%) of the fiber after heat treated at 1600 degrees C was attributed to the increasing of crystallite size, nanopore defects and a higher misalignment of crystallites in the core region. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[zhou, gengheng ; byun, joon-hyung ; lee, sang-bok ; yi, jin-woo ; lee, wonoh ; lee, sang-kwan ; kim, byung-sun] korea inst mat sci, chang won 642831, south korea. [park, jong-kyu ; lee, seung-geol] agcy def dev, taejon 305600, south korea. [he, lianlong] inst met sci & technol, shenyang 110016, peoples r china. ; byun, jh (reprint author), korea inst mat sci, 797 changwondaero, chang won 642831, south korea. ; bjh1673@kims.re.kr
关键词	X-ray-scattering Polyacrylonitrile Fibers High-modulus Mechanical-properties High-temperatures High Strength Fibres Stabilization Carbonization Microtexture
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73519
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Zhou,J. H. Byun,S. B. Lee,et al. Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation[J]. Carbon,2014,76:232-239.
APA	G. Zhou.,J. H. Byun.,S. B. Lee.,J. W. Yi.,W. Lee.,...&L. L. He.(2014).Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation.Carbon,76,232-239.
MLA	G. Zhou,et al."Nano structural analysis on stiffening phenomena of PAN-based carbon fibers during tensile deformation".Carbon 76(2014):232-239.