Failure Processes in Embedded Monolayer Graphene under Axial Compression
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00428888" target="_blank" >RIV/61388955:_____/14:00428888 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1038/srep05271" target="_blank" >http://dx.doi.org/10.1038/srep05271</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/srep05271" target="_blank" >10.1038/srep05271</a>
Alternative languages
Result language
angličtina
Original language name
Failure Processes in Embedded Monolayer Graphene under Axial Compression
Original language description
Exfoliated monolayer graphene flakes were embedded in a polymer matrix and loaded under axial compression. By monitoring the shifts of the 2D Raman phonons of rectangular flakes of various sizes under load, the critical strain to failure was determined.Prior to loading care was taken for the examined area of the flake to be free of residual stresses. The critical strain values for first failure were found to be independent of flake size at a mean value of ?0.60% corresponding to a yield stress up to -6GPa. By combining Euler mechanics with a Winkler approach, we show that unlike buckling in air, the presence of the polymer constraint results in graphene buckling at a fixed value of strain with an estimated wrinkle wavelength of the order of 1?2 nm. These results were compared with DFT computations performed on analogue coronene/ PMMA oligomers and a reasonable agreement was obtained.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-15357S" target="_blank" >GA14-15357S: Strain engineering of electronic structure in graphene</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientific Reports
ISSN
2045-2322
e-ISSN
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Volume of the periodical
4
Issue of the periodical within the volume
JUN 2014
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
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UT code for WoS article
000337226100009
EID of the result in the Scopus database
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