Microstructure investigation and heat treatment of nanocrystalline laser-deposited carbon fibers
Microstructure investigation and heat treatment of nanocrystalline laser-deposited carbon fibers
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纳米晶激光沉积碳纤维的微观结构研究和热处理
DOI：
10.1016/j.apsusc.2005.07.082
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发表时间：
2006
影响因子：
6.7
通讯作者：
M. Boman
中科院分区：
文献类型：
--
作者：
C. Fauteux;R. Longtin;J. Pegna;M. Boman
采用激光辅助化学气相沉积（LCVD）方法，在亚大气压下以乙烯为原料制备了碳纤维。先前的拉曼光谱分析允许确定晶体尺寸（边缘区域中的平均值为3nm，中心区域中的平均值为8至113nm）。在此分析中，使用显微拉曼光谱和透射电子显微镜检查生长和热处理的纤维的微观结构。分析揭示了石墨平面的三维有序程度，并且纤维是多孔的。
Carbon fibers were deposited by laser-assisted chemical vapor (LCVD) deposition from ethylene at sub-atmospheric pressure. Prior Raman spectroscopy analysis allowed the determination of the crystal size (average value of 3nm in the edge region and from 8 to 113nm in the center region). In this analysis, the microstructure of as-grown and heat treated fibers was examined using micro-Raman spectroscopy and transmission electron microscopy. The analysis revealed the degree of three-dimensional ordering of graphite planes and that the fibers were porous.