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Structure, Properties, and Applications of Carbon and Non-carbon Nanotubes

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Carbon Materials".

Deadline for manuscript submissions: closed (20 September 2023) | Viewed by 3118

Special Issue Editors


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Guest Editor
CEMMPRE, Centre for Mechanical Engineering, Materials and Processes, Department of Mechanical Engineering Polo II, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal
Interests: mechanical properties of bulk materials and thin films: modelling and numerical simulation, inverse analysis and experimental aspects; experimental mechanical characterization of materials: mechanical tests and structural studies by different techniques; mechanical properties of nanomaterials: modelling and experimental aspects; metal forming: fundamental aspects, modelling, constitutive laws, inverse analysis, numerical simulation and applications.
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Co-Guest Editor
CEMMPRE—Centre for Mechanical Engineering, Materials and Processes, Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
Interests: sheet metal-forming processes; finite element simulation; parameter identification; mechanical testing; inverse analysis; uncertainty analysis; sensitivity analysis; metamodeling; carbon nanotubes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Carbon and non-carbon nanotubes offer numerous possibilities for constructing multifunctional electromechanical, electronic, and optical nanodevices. Moreover, these one-dimensional nanostructures can be advantageous to enhance the manufacturing quality of both industrial machinery and equipment components. The outstanding physical and mechanical properties of carbon nanotubes, which can be used in tools and industrial devices, allow improving their performance and reducing their weight. Non-carbon nanotubes, being wide bandgap semiconductors or dielectrics, have promising applications as light-emitting diodes (LEDs), field effect transistors, sensors, and biodetectors. Since the stability and productivity of the nano-devices are strongly dependent on the structural, physical, and mechanical properties of the constituents, experimental and theoretical (numerical and analytical) studies toward the characterization of carbon and non-carbon nanotubes properties are required.

The aim of this Special Issue is to contribute to knowledge toward the structural, physical, and mechanical properties of carbon and non-carbon nanotubes, helping to discover their novel applications and building new devices for health, security, and biotechnology needs.

Recent achievements with respect to synthesis, numerical modeling, and experimental and theoretical characterization of structure, electronical, optical, and mechanical properties of carbon and non-carbon nanotubes are considered in this Special Issue.

Dr. Nataliya A. Sakharova
Dr. André Pereira
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • carbon nanotubes
  • non-carbon nanotubes
  • experimental characterization
  • modeling
  • mechanical properties
  • structure
  • nanodevices

Published Papers (2 papers)

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Research

19 pages, 5839 KiB  
Article
Elastic Moduli of Non-Chiral Singe-Walled Silicon Carbide Nanotubes: Numerical Simulation Study
by Nataliya A. Sakharova, André F. G. Pereira and Jorge M. Antunes
Materials 2022, 15(22), 8153; https://doi.org/10.3390/ma15228153 - 17 Nov 2022
Cited by 2 | Viewed by 918
Abstract
Silicon carbide nanotubes (SiCNTs) have generated significant research interest due to their potential use in the fabrication of electronic and optoelectronic nanodevices and biosensors. The exceptional chemical, electrical and thermal properties of SiCNTs are beneficial for their application in high-temperature and harsh-environments. In [...] Read more.
Silicon carbide nanotubes (SiCNTs) have generated significant research interest due to their potential use in the fabrication of electronic and optoelectronic nanodevices and biosensors. The exceptional chemical, electrical and thermal properties of SiCNTs are beneficial for their application in high-temperature and harsh-environments. In view of the limited thermal stability of carbon nanotubes, they can be replaced by silicon carbide nanotubes in reinforced composites, developed for operations at high temperatures. However, fundamentally theoretical studies of the mechanical properties of the silicon carbide nanotubes are at an early stage and their results are still insufficient for designing and exploiting appropriate nanodevices based on SiCNTs and reinforced composites. In this context, the present study deals with the determination of Young’s and shear moduli of non-chiral single-walled silicon carbide nanotubes, using a three-dimensional finite element model. Full article
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12 pages, 3365 KiB  
Article
Novel Surfactant-Induced MWCNTs/PDMS-Based Nanocomposites for Tactile Sensing Applications
by Anindya Nag, Nasrin Afsarimanesh, Suresh Nuthalapati and Mehmet Ercan Altinsoy
Materials 2022, 15(13), 4504; https://doi.org/10.3390/ma15134504 - 27 Jun 2022
Cited by 8 | Viewed by 1785
Abstract
The paper presents the use of surfactant-induced MWCNTs/PDMS-based nanocomposites for tactile sensing applications. The significance of nanocomposites-based sensors has constantly been growing due to their enhanced electromechanical characteristics. As a result of the simplified customization for their target applications, research is ongoing to [...] Read more.
The paper presents the use of surfactant-induced MWCNTs/PDMS-based nanocomposites for tactile sensing applications. The significance of nanocomposites-based sensors has constantly been growing due to their enhanced electromechanical characteristics. As a result of the simplified customization for their target applications, research is ongoing to determine the quality and quantity of the precursor materials that are involved in the fabrication of nanocomposites. Although a significant amount of work has been done to develop a wide range of nanocomposite-based prototypes, they still require optimization when mixed with polydimethylsiloxane (PDMS) matrices. Multi-Walled Carbon Nanotubes (MWCNTs) are one of the pioneering materials used in multifunctional sensing applications due to their high yield, excellent electrical conductivity and mechanical properties, and high structural integrity. Among the other carbon allotropes used to form nanocomposites, MWCNTs have been widely studied due to their enhanced bonding with the polymer matrix, highly densified sampling, and even surfacing throughout the composites. This paper highlights the development, characterization and implementation of surfactant-added MWCNTs/PDMS-based nanocomposites. The prototypes consisted of an optimized amount of sodium dodecyl sulfonate (SDS) and MWCNTs mixed as nanofillers in the PDMS matrix. The results have been promising in terms of their mechanical behaviour as they responded well to a maximum strain of 40%. Stable and repeatable output was obtained with a response time of 1 millisecond. The Young’s Modulus of the sensors was 2.06 MPa. The utilization of the prototypes for low-pressure tactile sensing applications is also shown here. Full article
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