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Regularly Structured Porous Materials and New Discoveries in Additive Manufacturing
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Regularly Structured Porous Materials and New Discoveries in Additive Manufacturing

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

Deadline for manuscript submissions: 20 January 2026 | Viewed by 1890

Special Issue Editor

Prof. Dr. Katarina Monkova

E-Mail Website
Guest Editor
Faculty of Manufacturing Technologies, Technical University in Kosice, Kosice, Slovakia
Interests: mechanical engineering with the specification on computer aid of technical devices design, analyses, and simulations; cellular materials; manufacturing technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Rapid developments in materials and production technologies have made it possible to produce new types of sophisticated components that are significantly lighter than traditional products whose entire volume consists of solid material. Such components are composed of materials characterized by a periodic or stochastic arrangement of open or closed pores, leading to differing characteristics in terms of their topology, whether they are two-dimensional configurations of structures (e.g., honeycomb), three-dimensional polyhedral arrangements (e.g., lattice structures), or three-dimensional periodic complex shapes (e.g., minimum areas). These specific materials can provide a product with an extraordinary combination of mechanical, physical, and chemical properties compared to full-volume materials. The desire to incorporate sophisticated structures into component design is motivated by the aspiration to increase the added value of the product, shorten the production time, and reduce the consumption of expensive materials. Regarding the expected properties, the use of such constructions appears to be very promising, not only in the areas of industry (automotive, marine, aviation, aerospace, engineering, construction), medicine, biomedicine, and health care, but also in products of daily use or household appliances. 

Potential topics include, but are not limited to, the following:

  • Recent innovations in materials with a regular distribution of pores (cellular materials/mesoporous materials/metamaterials/lightweight materials);
  • Mechanical/chemical/physical properties;
  • Testing, analysis, simulation, and behavior;
  • Production and processing;
  • Application.

Prof. Dr. Katarina Monkova
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 250 words) can be sent to the Editorial Office for assessment.

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

  • regularly structured porous materials
  • design
  • preparation
  • application
  • properties
  • testing
  • analysis

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Related Special Issue

Published Papers (2 papers)

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Research

35 pages, 26567 KB  
Article
A Preliminary Study of the Effect of 3D Printing Orientation on Mechanical Properties and Fracture of Samples Made from AlSi10Mg
by Katarina Monkova, Marianthi Bouzouni, George A. Pantazopoulos, Anagnostis I. Toulfatzis and Sofia Papadopoulou
Materials 2025, 18(23), 5294; https://doi.org/10.3390/ma18235294 - 24 Nov 2025
Viewed by 340
Abstract
The significant advancement in additive technologies has made it possible to manufacture metal components in diverse shapes and sizes. Despite this progress, numerous processes and phenomena, along with the implications of producing components layer by layer on their performance under stress, remain inadequately [...] Read more.
The significant advancement in additive technologies has made it possible to manufacture metal components in diverse shapes and sizes. Despite this progress, numerous processes and phenomena, along with the implications of producing components layer by layer on their performance under stress, remain inadequately explored. These factors not only affect microstructure but subsequently also the mechanical properties. The positioning of objects within the 3D printer’s workspace can thus significantly play a crucial role in their operational functionality, reliability, and safety of the equipment in an application. This article studies anisotropic properties and the influence of the printing orientation of aluminum alloy (AlSi10Mg) cylindrical tensile samples fabricated through an additive approach on their mechanical properties under tensile loading. Tensile testing of specimens covering seven different spatial orientations in the workspace of a 3D printing machine was performed according to ISO 6892-1 international standard. Minimum and maximum tensile properties (yield and ultimate tensile strength) have been observed in Y-sample and X-sample series, respectively. In contrast, elastic modulus of the 3D printed specimens was minimal for X-sample series, and maximal for Y-sample series. Fracture surfaces of the samples in seven basic spatial orientations were evaluated in synergy with the mechanical testing results determined by optical, electron microscopy, and electron backscatter diffraction (EBSD) textural analysis to find correlation between the strength of the samples and the orientation of grains, their size and morphology. Furthermore, thermodynamic and Scheil–Gulliver simulation has been employed in order to explain the formation of intermetallic phases during additive manufacturing and further justifying observations in microstructure and mechanical properties. The disparity in texture intensity between these regions for samples Y(3) is likely responsible for localized mechanical incompatibilities and strain heterogeneity, resulting in preferential crack paths and reduced mechanical strength compared to the sample Z(3), which presented a more randomized orientation distribution with less distinguishable texture zones, enabling better strain accommodation and more uniform plastic deformation, which correlates with its higher tensile and yield strength. Full article
(This article belongs to the Special Issue Regularly Structured Porous Materials and New Discoveries in Additive Manufacturing)
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20 pages, 8319 KB  
Article
Shortening the Saturation Time of PBAT Sheet Foaming via the Pre-Introducing of Microporous Structures
by Fangwei Tian, Junjie Jiang, Yaozong Li, Hanyi Huang, Yushu Wang, Ziwei Qin and Wentao Zhai
Materials 2025, 18(5), 1044; https://doi.org/10.3390/ma18051044 - 26 Feb 2025
Cited by 2 | Viewed by 1200
Abstract
Poly (butylene adipate-co-terephthalate) (PBAT) foam sheets prepared by foaming supercritical fluids are characterized by high resilience, homogeneous cellular structure, and well-defined biodegradability. However, the inert chemical structure and the rigid hard segments restrict the diffusion of CO2 within the PBAT matrix, resulting [...] Read more.
Poly (butylene adipate-co-terephthalate) (PBAT) foam sheets prepared by foaming supercritical fluids are characterized by high resilience, homogeneous cellular structure, and well-defined biodegradability. However, the inert chemical structure and the rigid hard segments restrict the diffusion of CO2 within the PBAT matrix, resulting in extremely long gas saturation times as long as 9 h at a thickness of 12 mm. In this study, microporous structures were pre-introduced into the PBAT matrix to provide a fast gas diffusion pathway during the saturation process. After 2 h of saturation, PBAT foam sheets with expansion ratio of 10 to 13.8 times were prepared. The interaction of CO2 with PBAT was systematically investigated, and the CO2 sorption process was evaluated kinetically and thermodynamically using the Fickian diffusion theory. The solubility and diffusion rate of CO2 in pretreated PBAT sheets with different microporous sizes and densities were investigated, and the effects of pretreatment strategies on the foaming behavior and cell structure of PBAT foam sheets were discussed. The introduction of a microporous structure not only reduces saturation time but also enhances solubility, enabling the successful preparation of soft foams with high expansion ratios and resilience. After undergoing foaming treatment, the PBAT pretreated sheets with a 10 μm microporous structure and a density of 0.45 g/cm3 demonstrated improved mechanical properties: their hardness decreased to 35 C while resilience increased to 58%, reflecting enhanced elastic recovery capabilities. The pretreatment method, which increases the diffusion rate of CO2 in PBAT sheets, offers a straightforward approach that provides valuable insights into achieving rapid and efficient foaming of thick PBAT sheets in industrial applications. Full article
(This article belongs to the Special Issue Regularly Structured Porous Materials and New Discoveries in Additive Manufacturing)
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