Additive Manufacturing of Hybrid and Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 3387

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Southern Polytechnic College of Engineering and Engineering Technology, Kennesaw State University, Marietta, GA 30060, USA
Interests: nanomaterials; omposites; additive manufacturing

Special Issue Information

Dear Colleagues,

Additive manufacturing (AM) has emerged as a novel technique that can eliminate several design constraints posed by classical manufacturing methods while facilitating near-final shape production. The most appealing features of AM are the exclusion of molds and the forming of functionally gradient structures. Additive manufacturing has expanded into classical engineering materials including polymers, ceramics, metals, and composites. Several AM techniques such as fused deposition modeling (FDM) were utilized to manufacture a plethora of materials based on thermoplastic filaments and/or filaments with other materials, such as carbon black and chopped carbon fibers. Other methods, such as the direct write method (DWM), allow for the printing of materials starting from a viscous fluid (i.e., ink) phase. Despite the many advancements of AM, there are few studies that investigate the AM of nanomaterials or hybrid materials with nanophases. The objective of this Special Issue is to highlight the advantages that can be achieved by combining AM and nanomaterials toward producing multiscale, multifunctional materials. This Special Issue also sheds light on the challenges encountered in the AM of nanomaterials and nanocomposites.

Prof. Dr. Marwan Al-Haik
Guest Editor

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Keywords

  • nanomaterials
  • composites
  • additive manufacturing
  • hybrid materials
  • smart materials

Published Papers (2 papers)

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Research

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14 pages, 4666 KiB  
Article
Hybrid Metal-Organic Frameworks/Carbon Fibers Reinforcements for Additively Manufactured Composites
by Marwan Al-Haik, Suma Ayyagari, Yixin Ren, Andrew Abbott, Bing Qian Zheng and Hilmar Koerner
Nanomaterials 2023, 13(5), 944; https://doi.org/10.3390/nano13050944 - 05 Mar 2023
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Abstract
Additively manufactured (AM) composites based on short carbon fibers possess strength and stiffness far less than their continuous fiber counterparts due to the fiber’s small aspect ratio and inadequate interfaces with the epoxy matrix. This investigation presents a route for preparing hybrid reinforcements [...] Read more.
Additively manufactured (AM) composites based on short carbon fibers possess strength and stiffness far less than their continuous fiber counterparts due to the fiber’s small aspect ratio and inadequate interfaces with the epoxy matrix. This investigation presents a route for preparing hybrid reinforcements for AM that comprise short carbon fibers and nickel-based metal-organic frameworks (Ni-MOFs). The porous MOFs furnish the fibers with tremendous surface area. Additionally, the MOFs growth process is non-destructive to the fibers and easily scalable. This investigation also demonstrates the viability of using Ni-based MOFs as a catalyst for growing multi-walled carbon nanotubes (MWCNTs) on carbon fibers. The changes to the fiber were examined via electron microscopy, X-ray scattering techniques, and Fourier-transform infrared spectroscopy (FTIR). The thermal stabilities were probed by thermogravimetric analysis (TGA). Tensile and dynamic mechanical analysis (DMA) tests were utilized to explore the effect of MOFs on the mechanical properties of 3D-printed composites. Composites with MOFs exhibited improvements in stiffness and strength by 30.2% and 19.0%, respectively. The MOFs enhanced the damping parameter by 700%. Full article
(This article belongs to the Special Issue Additive Manufacturing of Hybrid and Nanomaterials)
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Review

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24 pages, 6284 KiB  
Review
Progress of Polymer-Based Dielectric Composites Prepared Using Fused Deposition Modeling 3D Printing
by Xueling Hu, Alix Marcelle Sansi Seukep, Velmurugan Senthooran, Lixin Wu, Lei Wang, Chen Zhang and Jianlei Wang
Nanomaterials 2023, 13(19), 2711; https://doi.org/10.3390/nano13192711 - 06 Oct 2023
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Abstract
Polymer-based dielectric composites are of great importance in advanced electronic industries and energy storage because of their high dielectric constant, good processability, low weight, and low dielectric loss. FDM (Fused Deposition Modeling) is a greatly accessible additive manufacturing technology, which has a number [...] Read more.
Polymer-based dielectric composites are of great importance in advanced electronic industries and energy storage because of their high dielectric constant, good processability, low weight, and low dielectric loss. FDM (Fused Deposition Modeling) is a greatly accessible additive manufacturing technology, which has a number of applications in the fabrication of RF components, but the unavoidable porosity in FDM 3D-printed materials, which affects the dielectric properties of the materials, and the difficulty of large-scale fabrication of composites by FDM limit its application scope. This study’s main focus is on how the matrix, filler, interface, and FDM 3D printing parameters influence the electrical properties of FDM-printed polymer-based dielectric composites. This review article starts with the fundamental theory of dielectrics. It is followed by a summary of the factors influencing dielectric properties in recent research developments, as well as a projection for the future development of FDM-prepared polymer-based dielectric composites. Finally, improving the comprehensive performance of dielectric composites is an important direction for future development. Full article
(This article belongs to the Special Issue Additive Manufacturing of Hybrid and Nanomaterials)
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