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J. Compos. Sci.
Special Issues
Recent Progress in Hybrid Composites
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Recent Progress in Hybrid Composites

A special issue of Journal of Composites Science (ISSN 2504-477X). This special issue belongs to the section "Composites Manufacturing and Processing".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 3209

Special Issue Editor

Dr. Chensong Dong

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Curtin University, Perth, WA, Australia
Interests: composites; hybrid; natural; optimization

Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue dedicated to the exploration of hybrid composites, a frontier in materials science and engineering. This Special Issue aims to showcase the latest advancements, innovative approaches, and practical applications in the realm of hybrid composite materials. We invite researchers and experts to submit their cutting-edge findings, covering a diverse range of topics such as material design, manufacturing techniques, characterization methods, and applications in various industries.

Hybrid composites, which combine multiple materials to achieve synergistic properties, have attracted significant attention for their potential to overcome individual material limitations. This Special Issue seeks to highlight research that addresses the challenges and opportunities presented by hybrid composites, fostering a deeper understanding of their behavior, performance, and potential for real-world applications. Submissions exploring novel combinations, processing methods, and optimization strategies are particularly encouraged.

Join us in creating a comprehensive resource that advances the field of hybrid composites, fostering collaboration and knowledge exchange among researchers, engineers, and practitioners.

Submit your work to contribute to the collective exploration of hybrid composites and be part of shaping the future of advanced materials.

We look forward to receiving your valuable contributions.

Dr. Chensong Dong
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Composites Science is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 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

  • composites
  • hybrid
  • fiber
  • particulate
  • design
  • processing
  • optimization

Published Papers (5 papers)

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Research

20 pages, 2675 KiB  
Article
Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances
by Laurent Spitaels, Valentin Dambly, Aiora Beobide Otaegi, Julien Bossu, Cathy Delmotte, Gregory Martic, Enrique Juste, Raoul Carrus, Pedro-José Arrazola, Fabrice Petit, Edouard Rivière-Lorphèvre and François Ducobu
J. Compos. Sci. 2024, 8(7), 233; https://doi.org/10.3390/jcs8070233 - 22 Jun 2024
Viewed by 220
Abstract
The conventional manufacturing chain for technical ceramics is too expensive for the production of small series or unique parts with complex designs. Hybrid machines that combine additive and subtractive processes can be an interesting solution to overcome this technology lock-in. However, despite the [...] Read more.
The conventional manufacturing chain for technical ceramics is too expensive for the production of small series or unique parts with complex designs. Hybrid machines that combine additive and subtractive processes can be an interesting solution to overcome this technology lock-in. However, despite the great interest in hybrid machines for metallic parts, there is a lack of data in the literature when it comes to ceramics. The purpose of this paper is to contribute to closing this gap. It is the first to evaluate the achievable geometrical tolerances according to ISO 2768-2 as well as the surface textures of composite zirconia parts shaped sequentially by pellet additive manufacturing (PAM, from ceramic injection molding feedstock) and finish milling. The green parts were then debinded and sintered to analyze the influence of these steps. Compared to the initial green parts, the sintered parts exhibited shiny and smooth surfaces with sharp edges. Flatness, parallelism and perpendicularity all achieved an H (fine) class, while the surface textures were significantly improved, resulting in arithmetic roughness (Ra) below 1.6 µm. Full article
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
16 pages, 5626 KiB  
Article
Development, Dielectric Response, and Functionality of ZnTiO3/BaTiO3/Epoxy Resin Hybrid Nanocomposites
by Anastasios C. Patsidis, Eleftherios I. Koufakis, Georgios N. Mathioudakis, Orestis Vryonis and Georgios C. Psarras
J. Compos. Sci. 2024, 8(6), 225; https://doi.org/10.3390/jcs8060225 - 15 Jun 2024
Viewed by 462
Abstract
In the present work, hybrid nanocomposites of an epoxy resin reinforced with ZnTiO3 and BaTiO3 nanoparticles, at various filler contents, were fabricated and studied. The successful integration of ceramic nanofillers and the fine distribution of nanoparticles were confirmed via X-ray Diffraction [...] Read more.
In the present work, hybrid nanocomposites of an epoxy resin reinforced with ZnTiO3 and BaTiO3 nanoparticles, at various filler contents, were fabricated and studied. The successful integration of ceramic nanofillers and the fine distribution of nanoparticles were confirmed via X-ray Diffraction patterns and Scanning Electron Microscopy images, respectively. Dielectric properties and related relaxation phenomena were investigated via Broadband Dielectric Spectroscopy in a wide range of frequencies and temperatures. Data analysis showed that dielectric permittivity increases with filler content, although optimum performance does not correspond to the maximum ZnTiO3 content. Four relaxation processes were observed and attributed to interfacial polarization (IP) (at low frequencies and high temperatures), glass-to-rubber transition (α-relaxation) of the epoxy matrix (at intermediate frequencies and temperatures), and local rearrangements of polar side groups of the macromolecules (β-relaxation) and small flexible groups of the main polymer chain (γ-relaxation) occurring at low temperatures and high frequencies. The ability of hybrid nanocomposites to store and retrieve energy was studied under dc conditions by employing a charging/discharging sequence. The stored and retrieved energy increases with filler content and charging voltage. The optimum ability of energy recovering, shown by the epoxy/7 phr ZnTiO3/7 phr BaTiO3 nanocomposite, ranges between 30 and 50 times more than the matrix, depending on the time instant. The employed nanoparticles induce piezoelectric properties in the nanocomposites, as found by the increase in the piezoelectric coefficient with filler content. Full article
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
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17 pages, 9430 KiB  
Article
Bolt-Hole Elongation of Woven Carbon-Epoxy Composite Plates and Joints Using the Digital Image Correlation Technique
by Masoud Mehrabian, Aouni Lakis, Jr. and Rachid Boukhili
J. Compos. Sci. 2024, 8(5), 180; https://doi.org/10.3390/jcs8050180 - 12 May 2024
Viewed by 557
Abstract
The elongation of the bolt hole is an important parameter for assessing the failure of bolted joints. However, direct experimental measurement using strain gauges and extensometers is difficult. This article shows that digital image correlation (DIC) can overcome the difficulties and provide important [...] Read more.
The elongation of the bolt hole is an important parameter for assessing the failure of bolted joints. However, direct experimental measurement using strain gauges and extensometers is difficult. This article shows that digital image correlation (DIC) can overcome the difficulties and provide important indications of the failure mechanisms of bolted joints. Hole elongation was measured using DIC in the following carbon/epoxy composite configurations: standard open-hole tensile (OHT) and filled-hole tensile (FHT), single-lap shear only-bolted (OB), and single-lap shear hybrid-bolted/bonded (HBB) joints. For each configuration, the hole-elongation changes were tracked for cross-ply (CP) and quasi-isotropic (QI) stacking sequences with two thicknesses. In the tensile load direction for OHT and FHT cases, CP showed a greater hole elongation than QI. However, the opposite trend was observed in the transverse direction. In OB joints, bypass loads contributed more to the hole elongation than bearing action. In HBB joints, it has been observed that the adhesive significantly reduces hole elongation, particularly for CP configurations. Moreover, it was found that in HBB joints, hole elongation was independent of laminate lay-up, while it was very determinative in OB joints. Full article
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
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13 pages, 2791 KiB  
Article
Verification of the Inverse Scale Effect Hypothesis on Viscosity and Diffusion by Azo-Amino Acid Schiff Base Copper Complexes
by Yoshitora Wadayama, Ai Kaneda, Taiga Imae, Daisuke Nakane and Takashiro Akitsu
J. Compos. Sci. 2024, 8(5), 177; https://doi.org/10.3390/jcs8050177 - 10 May 2024
Viewed by 465
Abstract
Microdroplets generated in microfluidic devices are attracting attention as a new chemical reaction field and are expected to improve reactivity. One of the effects of microscaling is that the ratio of the force that acts on the diffusion and movement of substances to [...] Read more.
Microdroplets generated in microfluidic devices are attracting attention as a new chemical reaction field and are expected to improve reactivity. One of the effects of microscaling is that the ratio of the force that acts on the diffusion and movement of substances to gravity is different from that of ordinary solvents. Recently, we proposed a hypothesis for determining reaction acceleration through micro-miniaturization: If a reaction is inhibited by setting the volume and viscosity of the solution to conditions that are unfavorable to the reaction on a normal scale, that reaction can be promoted in microfluidics. Therefore, for the purpose of this verification, (1) we used an amino acid Schiff base copper(II) complex with an azobenzene group to demonstrate the polarization-induced orientation in a polymer film (the redirection that is mechanically maintained in a soft matter matrix). Numerical data on optical anisotropy parameters were reported. (2) When the reaction is confirmed to be promoted in laminar flow in a microfluidic device and its azo derivative, a copper(II) complex is used to increase the solvent viscosity or diffusion during synthesis on a normally large scale. We will obtain and discuss data on the investigation of changing the solvent volume as a region. The range of experimental conditions for volume and viscosity did not lead to an improvement in synthetic yield, nor did (3) the comparison of solvents and viscosity for single-crystal growth of amino acid Schiff base copper(II) complexes having azobenzene groups. A solvent whose viscosity was measured was used, but microcrystals were obtained using the diffusion method. Full article
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
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19 pages, 2520 KiB  
Article
On the Multidisciplinary Design of a Hybrid Rocket Launcher with a Composite Overwrapped Pressure Vessel
by Alain Souza, Paulo Teixeira Gonçalves, Frederico Afonso, Fernando Lau, Nuno Rocha and Afzal Suleman
J. Compos. Sci. 2024, 8(3), 109; https://doi.org/10.3390/jcs8030109 - 19 Mar 2024
Viewed by 1258
Abstract
A multidisciplinary design optimisation (MDO) study of a hybrid rocket launcher is presented, with a focus on quantifying the impact of using composite overwrapped pressure vessels (COPVs) as the oxidiser tank. The rocket hybrid propulsion system (RHPS) consists of a combination of solid [...] Read more.
A multidisciplinary design optimisation (MDO) study of a hybrid rocket launcher is presented, with a focus on quantifying the impact of using composite overwrapped pressure vessels (COPVs) as the oxidiser tank. The rocket hybrid propulsion system (RHPS) consists of a combination of solid fuel (paraffin) and liquid oxidiser (NOx). The oxidiser is conventionally stored in metallic vessels. Alternative design concepts involving composite-based pressure vessels are explored that could lead to significant improvements in the overall performance of the rocket. This design choice may potentially affect parameters such as total weight, thrust curve, and maximum altitude achieved. With this eventual impact in mind, structural considerations such as wall thickness for the COPV are integrated into an in-house MDO framework to conceptually optimise a hybrid rocket launcher. Full article
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
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