New insights into orientation distribution of high strength polyacrylonitrile-based carbon fibers with skin-core structure

IMR OpenIR

	New insights into orientation distribution of high strength polyacrylonitrile-based carbon fibers with skin-core structure
	Guo, XS; Cheng, YX; Fan, Z; Feng, ZH; He, LL; Liu, RG; Xu, J; He, LL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2016-11-01
发表期刊	CARBON
ISSN	0008-6223
卷号	109 页码:444-452
摘要	The continuous changes in orientation angle (OA) across longitudinal sections of high strength polyacrylonitrile-based carbon fibers with circular cross sections were investigated by transmission electron microscopy. A contrast ring was observed in some cross-sections, displaying two contrast zones in the longitudinal section. Two types of OA distribution features were found in the absence or presence of contrast zones. Contrast zones were confirmed as the symbol of the skin-core structure and the boundaries between the skin and core. The high preferred orientation of the basal planes was first identified in the contrast zone, which presented an OA inflexion point (OIP) in the OA plot. The OIP was also detected in the contrast zone for the self-prepared carbon fibers. The OIP and contrast ring shifted towards the core as the preoxidation time increased. For a preoxidation time of 8 h, both the OIP and contrast ring disappeared. A mechanism, based on the stress-induced alignment of the basal planes, was proposed to account for the formation of the OIP. (C) 2016 The Authors. Published by Elsevier Ltd.
部门归属	[guo, xinshuang ; cheng, yongxin ; he, lianlong] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china ; [fan, zhen ; feng, zhihai] aerosp res inst mat & proc technol, natl key lab adv funct composite mat, beijing 100076, peoples r china ; [liu, ruigang ; xu, jian] chinese acad sci, inst chem, beijing natl lab mol sci, lab polymer phys & chem, beijing 100190, peoples r china ; [guo, xinshuang] univ chinese acad sci, beijing 100049, peoples r china ; [cheng, yongxin] univ sci & technol china, hefei 230026, peoples r china
学科领域	Chemistry, Physical ; Materials Science, Multidisciplinary
资助者	National Program on Key Basic Research Project (973 Program) [2011CB605604, 2011CB605803]
收录类别	sci
语种	英语
WOS记录号	WOS:000385900100051
引用统计	被引频次：40[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/321006/76206
专题	中国科学院金属研究所
通讯作者	He, LL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Guo, XS,Cheng, YX,Fan, Z,et al. New insights into orientation distribution of high strength polyacrylonitrile-based carbon fibers with skin-core structure[J]. CARBON,2016,109:444-452.
APA	Guo, XS.,Cheng, YX.,Fan, Z.,Feng, ZH.,He, LL.,...&He, LL .(2016).New insights into orientation distribution of high strength polyacrylonitrile-based carbon fibers with skin-core structure.CARBON,109,444-452.
MLA	Guo, XS,et al."New insights into orientation distribution of high strength polyacrylonitrile-based carbon fibers with skin-core structure".CARBON 109(2016):444-452.