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Carbon Nanotube Growth on Different Types of Tool Steel Substrates

Published online by Cambridge University Press:  01 February 2011

Gulfem Ipek Nasuf  and
Max Yen
Gulfem Ipek Nasuf
Affiliation:
gulfem@siu.edu, Southern Illinois University Carbondale, Materials Technology Center, Southern Illinois University Carbondale, College of Engineering, Carbondale, IL, 62901, United States
Max Yen
Affiliation:
myen@siu.edu, Materials Technology Center, Southern Illinois University Carbondale, Carbondale, IL, 62901, United States
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Abstract

This paper investigates the effectiveness of different pretreatment methods applied on M50, M35, and W4 type of tool steel substrates for direct growth of carbon nanotubes. The pretreatments explored include treatment with sand paper polishing, nitric acid (HNO3) etching, and high temperature hydrogen gas treatment. Furthermore, in order to establish a correlation between the steel surface average roughness value and the carbon nanotube growth, surface topography of steel substrates created by mechanical polishing were measured before actual growth process. Grown carbon nanostructures were shown by SEM and TEM to be multi-walled carbon nanotubes (MWCNTs) and vapor grown carbon nanofibers (VGCFs). It was found that under the same pretreatment conditions, even when the same roughness values were achieved and the same thermal chemical vapor deposition conditions were applied, grown nanostructures on different types of tool steel substrates showed dissimilarity.

Keywords

nanostructurechemical vapor deposition (CVD) (deposition)metal
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1057: Symposium II – Nanotubes and Related Nanostructures , 2007 , 1057-II05-19
Copyright
Copyright © Materials Research Society 2008

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References

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