Published June 4, 2013
| Version Published
Journal Article
Open
Buckling-driven delamination of carbon nanotube forests
Creators
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1.
Georgia Institute of Technology
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2.
California Institute of Technology
Abstract
We report buckling-driven delamination of carbon nanotube (CNT) forests from their growth substrates when subjected to compression. Macroscale compression experiments reveal local delamination at the CNT forest-substrate interface. Results of microscale flat punch indentations indicate that enhanced CNT interlocking at the top surface of the forest accomplished by application of a metal coating causes delamination of the forest from the growth substrate, a phenomenon not observed in indentation of as-grown CNT forests. We postulate that the post-buckling tensile stresses that develop at the base of the CNT forests serve as the driving force for delamination.
Additional Information
© 2013 AIP Publishing LLC. Received 13 February 2013; accepted 1 April 2013; published online 4 June 2013. This work was partially supported by DARPA and the Space and Naval Warfare (SPAWAR) Systems Center, Pacific under Contract No. N66001-09-C-2013. J.R.G. and S.B.H. gratefully acknowledge the financial support from the Institute for Collaborative Biotechnologies (ICB) through grant W911NF-09-0001 from the U.S. Army Research Office. The content of the information does not necessarily reflect the position or the policy of the Government, and no official endorsement should be inferred.Attached Files
Published - ApplPhysLett_102_223103.pdf
Files
ApplPhysLett_102_223103.pdf
Additional details
Identifiers
- Eprint ID
- 39329
- Resolver ID
- CaltechAUTHORS:20130712-075812593
Funding
- Defense Advanced Research Projects Agency (DARPA)
- Office of Naval Research (ONR)
- N66001-09-C-2013
- Army Research Office (ARO)
- W911NF-09-0001
Dates
- Created
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2013-07-22Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field