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Mesoscale reverse stick-slip nanofriction behavior of vertically aligned multiwalled carbon nanotube superlattices

Author(s)
Lou, J.Ding, F.Lu, H.Goldman, J.Sun, Y.Yakobson, B. I.
Issued Date
2008-05
DOI
10.1063/1.2936866
URI
https://scholarworks.unist.ac.kr/handle/201301/31408
Fulltext
https://aip.scitation.org/doi/10.1063/1.2936866
Citation
APPLIED PHYSICS LETTERS, v.92, no.20, pp.203115
Abstract
Characteristics of sliding friction behaviors of vertically aligned multiwalled carbon nanotube (CNT) superlattices have been investigated in this letter. Friction force was measured using both regular atomic force microscopy (AFM) probe and colloidal AFM probe consisting of a 15 mu m diameter borosilicate sphere attached to the end of regular cantilever. A distinct reverse stick-slip behavior was observed in the current study compared to the usual stick-slip behavior reported in literature. It was found that this reverse stick-slip behavior was primarily due to the combined effects of surface topology and elastic deformation of CNTs, which were verified by experiments and atomistic simulations.
Publisher
AMER INST PHYSICS
ISSN
0003-6951
Keyword
ATOMIC-FORCE MICROSCOPYTRIBOLOGICAL PROPERTIESFRICTIONSURFACEARRAYSFILM

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