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材料工程  2015 

化学气相沉积中的气相生长碳纤维

DOI: 10.11868/j.issn.1001-4381.2015.11.002, PP. 9-12

Keywords: 柔性石墨纸,化学气相沉积,气相生长碳纤维

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Abstract:

用扫描电子显微镜观察了化学气相沉积过程中柔性石墨纸表面产生的热解炭的形态。研究发现热解炭不仅呈胞状平铺在柔性石墨纸表面,而且还形成了气相生长碳纤维。这类特殊形态的碳纤维在直径较小时具有明显的生长尖端。随着气相生长碳纤维的生长,直径变大,由一层一层的热解炭组成同心圆结构,当气相生长碳纤维直径超过50μm时尖形头部变成半球形。

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