Source:http://linkedlifedata.com/resource/pubmed/id/15904310
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
17
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pubmed:dateCreated |
2005-5-20
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pubmed:abstractText |
We report an experimental and a theoretical study of the radial elasticity of multiwalled carbon nanotubes as a function of external radius. We use atomic force microscopy and apply small indentation amplitudes in order to stay in the linear elasticity regime. The number of layers for a given tube radius is inferred from transmission electron microscopy, revealing constant ratios of external to internal radii. This enables a comparison with molecular dynamics results, which also shed some light onto the applicability of Hertz theory in this context. Using this theory, we find a radial Young modulus strongly decreasing with increasing radius and reaching an asymptotic value of 30+/-10 GPa.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
May
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pubmed:issn |
0031-9007
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
6
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pubmed:volume |
94
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
175502
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pubmed:year |
2005
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pubmed:articleTitle |
Radial elasticity of multiwalled carbon nanotubes.
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pubmed:affiliation |
School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, USA.
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pubmed:publicationType |
Journal Article
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