IHEP OpenIR  > 多学科研究中心
The evolution of crystalline structure in the preparation of PAN-based carbon fibers studied by whole powder pattern fitting
Zhang, CH; Sheng, Y; Tian, H; Xu, Y; Lu, CX; Wu, ZH; Wu ZH(吴忠华)
2011
发表期刊ACTA PHYSICA SINICA
卷号60期号:3页码:36101
通讯作者[Zhang Cai-Hong ; Sheng Yi ; Tian Hong ; Xu Yao ; Lue Chun-Xiang] Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China ; [Wu Zhong-Hua] Chinese Acad Sci, Inst High Energy Phys, Lab Synchrotron Radiat, Beijing 100049, Peoples R China ; [Zhang Cai-Hong ; Sheng Yi] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
摘要Based on the Rietveld theory and Maud software, the evolution of crystalline structure of PAN-based carbon fibers was studied by investigating the different stages in the preparation of carbon fibers. The microstructure parameters of PAN fibers, oxidative fibers, and carbon fibers, including cell parameters, apparent crystal grain sizes, textural structure and micro-strain, were obtained from the named whole powder pattern fitting method for XRD result. Based on rigorus theory of crystallography, the whale powder pattern fitting treats the whole XRD powder diffraction pattern rather than individual diffraction peaks, resulting in higher credibility and precision. The results indicated that polymer chains were arranged along the axis of PAN fiber and the apparent crystallite size was about 6. 4 nm. After pre-oxidation, the originally ordered structure in PAN fiber was damaged and new less-ordered cyclic ladder structure was formed in the pre-oxidized PAN fibers, while the apparent crystallite size of fiber decreased obviously. With the carbonization process, the cyclic ladder structure of per-oxidized fibers transferred into layer structure similar to that of graphite. The layers were oriented along the axis of carbonized fiber that contributed to the X-ray diffraction, which comprised the apparent crystallite grains. As the carbonization temperature increased, size of the layer structure in the direction perpendicular to fiber axis increased clearly, the preferential orientation was enhanced and the layer structure became much more ordered.
文章类型Article
关键词carbon fiber crystalline structure XRD whole powder pattern fitting method
学科领域Physics
研究领域[WOS]Physics
URL查看原文
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000288925700063
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240591
专题多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Zhang, CH,Sheng, Y,Tian, H,et al. The evolution of crystalline structure in the preparation of PAN-based carbon fibers studied by whole powder pattern fitting[J]. ACTA PHYSICA SINICA,2011,60(3):36101.
APA Zhang, CH.,Sheng, Y.,Tian, H.,Xu, Y.,Lu, CX.,...&吴忠华.(2011).The evolution of crystalline structure in the preparation of PAN-based carbon fibers studied by whole powder pattern fitting.ACTA PHYSICA SINICA,60(3),36101.
MLA Zhang, CH,et al."The evolution of crystalline structure in the preparation of PAN-based carbon fibers studied by whole powder pattern fitting".ACTA PHYSICA SINICA 60.3(2011):36101.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
8957.pdf(831KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, CH]的文章
[Sheng, Y]的文章
[Tian, H]的文章
百度学术
百度学术中相似的文章
[Zhang, CH]的文章
[Sheng, Y]的文章
[Tian, H]的文章
必应学术
必应学术中相似的文章
[Zhang, CH]的文章
[Sheng, Y]的文章
[Tian, H]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 8957.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。