Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 2019 | Submitted + Published + Supplemental Material
Journal Article Open

Characterization of vertically aligned carbon nanotube forests grown on stainless steel surfaces


Vertically aligned carbon nanotube (CNT) forests are a particularly interesting class of nanomaterials, because they combine multifunctional properties, such as high energy absorption, compressive strength, recoverability, and super-hydrophobicity with light weight. These characteristics make them suitable for application as coating, protective layers, and antifouling substrates for metallic pipelines and blades. Direct growth of CNT forests on metals offers the possibility of transferring the tunable CNT functionalities directly onto the desired substrates. Here, we focus on characterizing the structure and mechanical properties, as well as wettability and adhesion, of CNT forests grown on different types of stainless steel. We investigate the correlations between composition and morphology of the steel substrates with the micro-structure of the CNTs and reveal how the latter ultimately controls the mechanical and wetting properties of the CNT forest. Additionally, we study the influence of substrate morphology on the adhesion of CNTs to their substrate. We highlight that the same structure-property relationships govern the mechanical performance of CNT forests grown on steels and on Si.

Additional Information

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Received: 5 February 2019 / Accepted: 27 February 2019 / Published: 15 March 2019. Author Contributions: Conceptualization, E.R., M.S.-G. and C.D.; methodology E.R., M.S.-G. and C.D.; validation, E.R., M.D., M.S.-G. and P.J.; formal analysis, E.R., M.D., M.S.-G. and P.J.; investigation, E.R., M.D., M.S.-G. and P.J.; resources, G.P. and C.D.; data curation, E.R., M.D., M.S.-G. and P.J.; writing—original draft preparation, E.R., M.D. and C.D.; writing—review and editing, E.R., M.D., M.S.-G., G.P. and C.D.; visualization, E.R.; supervision, E.R. and C.D.; project administration, C.D.; funding acquisition, C.D. This research was part of the "Advanced cnt structures for functional surfaces applications" project co-funded by ALSTOM/GE and Hightech Zentrum Aargau AG. Contact angle and surface roughness measurements were performed at the Molecular Materials Research Center of the Beckman Institute of the California Institute of Technology. The authors would like to thank Dr. Matthew S. Hunt for the HRTEM imaging. The authors declare no conflict of interest.

Attached Files

Published - nanomaterials-09-00444.pdf

Submitted - 1809.08278.pdf

Supplemental Material - nanomaterials-09-00444-s001.pdf


Files (4.2 MB)
Name Size Download all
1.4 MB Preview Download
2.3 MB Preview Download
522.7 kB Preview Download

Additional details

August 22, 2023
October 20, 2023