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New Advances in Characterization of Cellular Materials—2nd Edition
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New Advances in Characterization of Cellular Materials—2nd Edition

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

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 2740

Special Issue Editors

Prof. Dr. Liviu Marsavina

E-Mail Website
Guest Editor
Faculty of Mechanics, Polytechnic University of Timisoara, 1 Mihai Viteazu Ave., 300222 Timisoara, Romania
Interests: the application of fracture mechanics to engineering structures; fatigue life assessment; experimental fracture mechanics
Special Issues, Collections and Topics in MDPI journals
Dr. Jaroslav Kovacik

E-Mail Website
Guest Editor
Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, 845 13 Bratislava, Slovakia
Interests: aliminum and zinc foams; porous solids; properties characterization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There has been an increase in the use of cellular materials in different industries. This Special Issue represents a good opportunity for researchers to disseminate new advances related to the behavior of cellular materials such as, for example, different manufacturing routes, advances in microstructure observations and measurement of cellular material properties, the relationship between microstructure and mechanical and physical properties, damping characterization, surface and volume treatment, advances in simulation and modeling of cellular material behavior, behavior of sandwich structures with cellular material cores, novel cellular structures. Both natural (cork or wood, bones) and manufactured (polymeric, metallic, and ceramic foams, honeycomb) cellular structures will be considered.

Prof. Dr. Liviu Marsavina
Dr. Jaroslav Kovacik
Guest Editors

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. Materials is an international peer-reviewed open access semimonthly 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 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

  • cellular structures
  • foams
  • physical and mechanical properties
  • microstructure
  • manufacturing routes

Related Special Issue

Published Papers (3 papers)

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Research

12 pages, 5717 KiB  
Article
The Effect of Foaming Agents on the Thermal Behavior of Aluminum Precursors
by Tomislav Rodinger, Danko Ćorić and Jaroslav Kováčik
Materials 2024, 17(3), 710; https://doi.org/10.3390/ma17030710 - 01 Feb 2024
Viewed by 555
Abstract
Various foaming agents can be used to achieve foaming of the precursors obtained by using the powder metallurgy method. However, the thermal behavior of pure aluminum precursors with different foaming agents has been studied very little in recent times. For the production of [...] Read more.
Various foaming agents can be used to achieve foaming of the precursors obtained by using the powder metallurgy method. However, the thermal behavior of pure aluminum precursors with different foaming agents has been studied very little in recent times. For the production of aluminum foams with closed cells, 1 wt.% of calcium carbonate (CaCO3), titanium hydride (TiH2), heat-treated TiH2 and zirconium hydride (ZrH2) were used. The foaming capability of the compacted precursors was investigated at temperatures 700, 720 and 750 °C. CaCO3 and TiH2 showed the best foamability at all considered temperatures, while ZrH2 achieved relatively good foaming only at the highest temperature, 750 °C. Due to their low onset temperature of the decomposition compared to the melting point of the unalloyed aluminum, in hydride-based foaming agents the drainage occurred at the bottom part of the foam samples. Among the investigated foaming agents, precursors with heat-treated TiH2 had the worst foaming properties, while CaCO3 showed the best foamability without the occurrence of drainage. Full article
(This article belongs to the Special Issue New Advances in Characterization of Cellular Materials—2nd Edition)
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13 pages, 3803 KiB  
Article
Preparation of Microporous Molding Activated Carbon Derived from Bamboo Pyrolysis Gasification Byproducts for Toluene Gas Adsorption
by Yali Wang, Ruting Xu, Mingzhe Ma, Kang Sun, Jianchun Jiang, Hao Sun, Shicai Liu, Yanren Jin and Ting Zhao
Materials 2023, 16(15), 5236; https://doi.org/10.3390/ma16155236 - 26 Jul 2023
Cited by 1 | Viewed by 878
Abstract
The effective utilization of charcoal and tar byproducts is a challenge for pyrolysis gasification of bamboo. Herein, the bamboo tar was modified via polymerization and acted as a new adhesive for the preparation of excellent bamboo-charcoal-derived molding activated carbon (MBAC). As compared with [...] Read more.
The effective utilization of charcoal and tar byproducts is a challenge for pyrolysis gasification of bamboo. Herein, the bamboo tar was modified via polymerization and acted as a new adhesive for the preparation of excellent bamboo-charcoal-derived molding activated carbon (MBAC). As compared with pristine tar and other adhesives, the aromatization of tar with phenol increased its molecular weight, oxygenic functional groups, and thermal stability, leading to the decreased blocking impact of charcoal pore and improved bonding and pyrolytic crosslinking effect between charcoal particles. These further contribute to the high mechanical strength, specific surface area, pore volume, and amount of oxygenic functional groups for fabricated MBAC. Owing to the high microporous volume of MBAC, it exhibited 385 mg·g−1 toluene and 75.2% tetrachloride gas adsorption performances. Moreover, the pseudo-first-order, pseudo-second-order, and Bangham models were used to evaluate the kinetic data. The toluene adsorption process conforms to the Bangham kinetic model, suggesting that the diffusion mechanism of toluene adsorption mainly followed intraparticle diffusion. Full article
(This article belongs to the Special Issue New Advances in Characterization of Cellular Materials—2nd Edition)
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13 pages, 16447 KiB  
Article
Hydrothermal Synthesis of a Cellular NiO Film on Carbon Paper as a Promising Way to Obtain a Hierarchically Organized Electrode for a Flexible Supercapacitor
by Tatiana L. Simonenko, Nikolay P. Simonenko, Philipp Yu. Gorobtsov, Elizaveta P. Simonenko and Nikolay T. Kuznetsov
Materials 2023, 16(15), 5208; https://doi.org/10.3390/ma16155208 - 25 Jul 2023
Cited by 2 | Viewed by 993
Abstract
The formation of a cellular hierarchically organized NiO film on a carbon paper substrate under hydrothermal conditions using triethanolamine as a base has been studied. The thermal behavior of the carbon paper substrate with the applied semi-product shell was studied using synchronous thermal [...] Read more.
The formation of a cellular hierarchically organized NiO film on a carbon paper substrate under hydrothermal conditions using triethanolamine as a base has been studied. The thermal behavior of the carbon paper substrate with the applied semi-product shell was studied using synchronous thermal analysis (TGA/DSC) and it was demonstrated that such modification of the material surface leads to a noticeable increase in its thermal stability. Using scanning electron microscopy (SEM), it was shown that the NiO film grown on the carbon fiber surface is characterized by a complex cellular morphology, organized by partially layered individual nanosheets of about 4–5 nm thickness and lateral dimensions up to 1–2 μm, some edges and folds of which are located vertically relative to the carbon fiber surface. The surface of the obtained material was also examined using atomic force microscopy (AFM), and the electronic work function of the oxide shell surface was evaluated using the Kelvin probe force microscopy (KPFM) method. The electrochemical parameters of the obtained flexible NiO/CP electrode were analyzed: the dependence of the specific capacitance on the current density was determined and the stability of the material during cycling was studied, which showed that the proposed approach is promising for manufacturing hierarchically organized electrodes for flexible supercapacitors. Full article
(This article belongs to the Special Issue New Advances in Characterization of Cellular Materials—2nd Edition)
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