Scanning tunnelling microscopy (STM) and scanning force microscopy (SFM) have been applied to characterize the surface topography of carbon fibres before and after activating electrochemical treatment. Electrochemical activation is seen to have a significant effect on the structure of the surface layers. The influence of scanning parameters on STM and SFM images was examined and it was found that alteration of the scanning direction allows important additional information about surface structure of carbon fibres to be obtained. It also makes it possible to estimate the contribution of the artefacts to resulting images. The results indicate the great potential of both STM and SFM for three-dimensional surface characterization of carbon fibres.
机构:
Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Zhang Cai-Hong
Sheng Yi
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Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Sheng Yi
Tian Hong
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Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Tian Hong
Xu Yao
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Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Xu Yao
Lue Chun-Xiang
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Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
Lue Chun-Xiang
Wu Zhong-Hua
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Chinese Acad Sci, Inst High Energy Phys, Lab Synchrotron Radiat, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China