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Dynamic Behavior of Vertically Aligned Carbon Nanotube Foams With Patterned Microstructure

Lattanzi, Ludovica and Thevamaran, Ramathasan and De Nardo, Luigi and Daraio, Chiara (2015) Dynamic Behavior of Vertically Aligned Carbon Nanotube Foams With Patterned Microstructure. Advanced Engineering Materials, 17 (10). pp. 1470-1479. ISSN 1438-1656.

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We present the design, fabrication, and dynamic characterization of micropatterned vertically aligned carbon nanotube (VACNT) foams. The foamsʼ synthesis combines photolithographic techniques with chemical vapor deposition to create materials with an effective density up to five times lower than that of bulk VACNT foams. The dynamic response of these lightweight materials is characterized by performing impact tests at different strain rates. Results show that the dynamic stress–strain behavior of the micropatterned foams is governed by the patternsʼ geometry and has negligible dependence on their bulk density. The energy absorption of the micropatterned foams is higher than most other energy absorbing materials, such as honeycombs, foams, and composites of comparable density. Highly organized CNT microstructures can be employed as lightweight material for protective applications.

Item Type:Article
Related URLs:
URLURL TypeDescription
Thevamaran, Ramathasan0000-0001-5058-6167
De Nardo, Luigi0000-0002-7492-6012
Daraio, Chiara0000-0001-5296-4440
Additional Information:© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Article first published online: April 22, 2015; Manuscript Received: December 17, 2014; Manuscript Revised: February 24, 2015. The authors acknowledge the financial support from the Institute for Collaborative Biotechnologies (ICB) under the contract W911NF-09-D-0001 with the Army Research Office (ARO). L. Lattanzi and L. De Nardo acknowledge INSTM. The authors thank the Kavli Nanoscience Institute at Caltech for the use of nanofabrication facilities.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-09-D-0001
Issue or Number:10
Record Number:CaltechAUTHORS:20151012-134855612
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Official Citation:Lattanzi, L., Thevamaran, R., De Nardo, L. and Daraio, C. (2015), Dynamic Behavior of Vertically Aligned Carbon Nanotube Foams With Patterned Microstructure. Adv. Eng. Mater., 17: 1470–1479. doi: 10.1002/adem.201400571
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61004
Deposited By: Tony Diaz
Deposited On:15 Oct 2015 21:23
Last Modified:03 Oct 2019 09:03

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