Graphitization of polyacrylonitrile carbon fibers and graphite irradiated by γ rays

被引：50

作者：

Xu, Zhiwei ^{[1
]}

Liu, Liangsen ^{[1
]}

Huang, Yudong ^{[2
]}

Sun, Ying ^{[1
]}

Wu, Xiaoqing ^{[1
]}

Li, Jialu ^{[1
]}

机构：

[1] Tianjin Polytech Univ, Key Lab Adv Braided Composites, Minist Educ, Tianjin 300160, Peoples R China

[2] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 21期

关键词：

Fiber technology; Graphite; gamma-ray irradiation; X-ray techniques; Microstructure; COMPOSITES; RADIATION; POLYMERS;

D O I：

10.1016/j.matlet.2009.05.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To investigate the effect of gamma-ray radiation on the microstructure of carbon fibers (CF) and graphite, the carbon fibers and graphite were irradiated by (60)Co source at room temperature. X-ray diffraction results indicate that the interlayer spacing d(002) of CF and graphite decreased after irradiation. The intensity of (002) peak in CF decreased while the peak of the (002) plane in graphite becomes sharper after irradiation. Scanning electron microscopy combined with energy dispersive X-ray spectroscopy determines that gamma-ray irradiation slightly improves the carbon content of CF surface layer. Compton scattering effect and heating caused by gamma-ray are proposed to be responsible for the graphitization of CF and graphite. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：1814 / 1816

页数：3

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