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Design, Synthesis and Characterization of Novel Porous Materials
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Design, Synthesis and Characterization of Novel Porous Materials

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

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 3714

Special Issue Editor

Dr. Fani Stergioudi

E-Mail Website
Guest Editor
School of Mechanical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece
Interests: metal foams; coating; corrosion; mechanical properties and structural characterization of metals

Special Issue Information

Dear Colleagues,

For decades, scientists and industry have been fascinated by the properties of porous metals and metal foams. The diverse porous structure, with pores ranging from the nanoscale to the macroscale, is possible due to a variety of manufacturing techniques based on foaming, sintering and casting, resulting in unique structural properties such as light weight, energy absorption and structural damping. Although mainly structural properties are investigated, over the past decade, functional properties (arising from the open porosity) have been emerging, such as potential uses in batteries, catalysis and filtration technologies. Advanced manufacturing techniques and usage of high-added-value metallic materials make porous material even more attractive and promising materials for providing solutions in environmental issues and energy challenges.

This Special Issue welcomes novel contributions and reviews on recent developments in the fields of synthesis, processing, characterization and evaluation of all porous metals having pores and features at all length scales, including the following:

  • Innovations in processing methods and synthesis of porous metal such as usage of additive manufacturing technologies, freeze-casting, electro-deposition, etc.;
  • Production of advanced porous metals such as porous metallic metamaterials, nanoporous metals and porous metallic biomaterials;
  • Coatings and surface treatments for porous metals and foams for functional applications such as catalysis, filtration and separation technologies, etc.;
  • Developments in characterization and properties of porous metals and metal foams, including micromechanical characterization, computational modeling and corrosion behavior of porous metals and metal foams.

The guest editor truly hopes that this Special Issue will be a valuable tool for scientists working on porous metals and alloys.

Dr. Fani Stergioudi
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. 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

  • porous metals
  • metal foams
  • production methods
  • coating and surface treatments
  • characterization and properties

Published Papers (2 papers)

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Research

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12 pages, 7355 KiB  
Article
Microstructure and Strengthening Effect of Coated Diamond Particles on the Porous Aluminum Composites
by Bisma Parveez, Nur Ayuni Jamal, Abdul Aabid and Muneer Baig
Materials 2023, 16(8), 3240; https://doi.org/10.3390/ma16083240 - 20 Apr 2023
Cited by 2 | Viewed by 1115
Abstract
In this work, porous Al alloy-based composites with varying Ti-coated diamond contents (0, 4, 6, 12 and 15 wt.%) were prepared, employing the powder metallurgy route and using a fixed amount (25 wt.%) of polymethylmethacrylate (PMMA) as a space holder. The effects of [...] Read more.
In this work, porous Al alloy-based composites with varying Ti-coated diamond contents (0, 4, 6, 12 and 15 wt.%) were prepared, employing the powder metallurgy route and using a fixed amount (25 wt.%) of polymethylmethacrylate (PMMA) as a space holder. The effects of the varying wt.% of diamond particles on the microstructure, porosities, densities and compressive behaviors were systematically evaluated. The microstructure study revealed that the porous composites exhibited a well-defined and uniform porous structure with good interfacial bonding between the Al alloy matrix and diamond particles. The porosities ranged from 18% to 35%, with an increase in the diamond content. The maximum value of plateau stress of 31.51 MPa and an energy absorption capacity of 7.46 MJ/m3 were acquired for a composite with 12 wt.% of Ti-coated diamond content; beyond this wt.%, the properties declined. Thus, the presence of diamond particles, especially in the cell walls of porous composites, strengthened their cell walls and improved their compressive properties. Full article
(This article belongs to the Special Issue Design, Synthesis and Characterization of Novel Porous Materials)
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Review

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31 pages, 45264 KiB  
Review
Porous Material (Titanium Gas Diffusion Layer) in Proton Exchange Membrane Fuel Cell/Electrolyzer: Fabrication Methods & GeoDict: A Critical Review
by Javid Hussain, Dae-Kyeom Kim, Sangmin Park, Muhammad-Waqas Khalid, Sayed-Sajid Hussain, Bin Lee, Myungsuk Song and Taek-Soo Kim
Materials 2023, 16(13), 4515; https://doi.org/10.3390/ma16134515 - 21 Jun 2023
Cited by 1 | Viewed by 2061
Abstract
Proton exchange membrane fuel cell (PEMFC) is a renewable energy source rapidly approaching commercial viability. The performance is significantly affected by the transfer of fluid, charges, and heat; gas diffusion layer (GDL) is primarily concerned with the consistent transfer of these components, which [...] Read more.
Proton exchange membrane fuel cell (PEMFC) is a renewable energy source rapidly approaching commercial viability. The performance is significantly affected by the transfer of fluid, charges, and heat; gas diffusion layer (GDL) is primarily concerned with the consistent transfer of these components, which are heavily influenced by the material and design. High-efficiency GDL must have excellent thermal conductivity, electrical conductivity, permeability, corrosion resistance, and high mechanical characteristics. The first step in creating a high-performance GDL is selecting the appropriate material. Therefore, titanium is a suitable substitute for steel or carbon due to its high strength-to-weight and superior corrosion resistance. The second crucial parameter is the fabrication method that governs all the properties. This review seeks to comprehend numerous fabrication methods such as tape casting, 3D printing, freeze casting, phase separation technique, and lithography, along with the porosity controller in each process such as partial sintering, input design, ice structure, pore agent, etching time, and mask width. Moreover, other GDL properties are being studied, including microstructure and morphology. In the future, GeoDict simulation is highly recommended for optimizing various GDL properties, as it is frequently used for other porous materials. The approach can save time and energy compared to intensive experimental work. Full article
(This article belongs to the Special Issue Design, Synthesis and Characterization of Novel Porous Materials)
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