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Nanomaterials 2019, 9(3), 444; https://doi.org/10.3390/nano9030444

Characterization of Vertically Aligned Carbon Nanotube Forests Grown on Stainless Steel Surfaces

1
Department of Mechanical and Process Engineering, Swiss Federal Institute of Technology (ETH Zurich), 8092 Zurich, Switzerland
2
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USA
3
Department of Physics, Swiss Federal Institute of Technology (ETH Zurich), 8092 Zurich, Switzerland
4
General Electric Switzerland, CH-5401 Baden, Switzerland
*
Author to whom correspondence should be addressed.
Received: 5 February 2019 / Revised: 26 February 2019 / Accepted: 27 February 2019 / Published: 15 March 2019
(This article belongs to the Special Issue The Synthesis and Applications of Carbon Nanotubes)
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Abstract

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. View Full-Text
Keywords: carbon nanotube; steel; characterization; mechanical properties; electron microscopy; coatings carbon nanotube; steel; characterization; mechanical properties; electron microscopy; coatings
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Roumeli, E.; Diamantopoulou, M.; Serra-Garcia, M.; Johanns, P.; Parcianello, G.; Daraio, C. Characterization of Vertically Aligned Carbon Nanotube Forests Grown on Stainless Steel Surfaces. Nanomaterials 2019, 9, 444.

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