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Metamaterials and Surfaces: Theoretical and Experimental Research
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Metamaterials and Surfaces: Theoretical and Experimental Research

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

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 7190

Special Issue Editor

Prof. Dr. Edward Bormashenko

E-Mail Website
Guest Editor
Chemical Engineering Department, Engineering Sciences Faculty, Ariel University, Ariel 407000, Israel
Interests: surface science; polymer science; cold plasma technologies; surface characterization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Among the novel trends in modern materials science, the development of meta-materials is prominent. Meta-materials are recently developed artificial materials demonstrating properties that are not found in naturally occurring materials, such as negative refraction or negative Poisson ratio. The domain of metamaterials covers a broad diversity of fields in physics and engineering, including: electromagnetics, acoustics, mechanics and thermodynamics. The special issue is devoted to the synthesis of theoretical and experimental approaches coming from the metamaterials- and interface sciences. Periodic micro- and nano-reliefs created on the surface of metals, polymers, and ceramic materials give rise to novel meta-materials and materials with the prescribed interfacial properties, such as those inherent for the “lotus”, “rose petal”, and “shark skin” effects. Experimental and theoretical papers devoted to metamaterials demonstrating promising interfacial properties, such as omniphobicity, and metamaterials exploiting their surfaces for achievement of the desirable engineering effect are invited.

Prof. Dr. Edward Bormashenko
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

  • metamaterials
  • interface science
  • acoustics
  • mechanical properties
  • electromagnetic properties
  • optical properties
  • metals
  • polymers
  • ceramics
  • periodic relief

Published Papers (3 papers)

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Research

13 pages, 4686 KiB  
Article
A Dipole with Reflector-Backed Active Metasurface for Linear-to-Circular Polarization Reconfigurability
by Ruan van Aardt, Johan Joubert and Johann W. Odendaal
Materials 2022, 15(9), 3026; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15093026 - 21 Apr 2022
Cited by 1 | Viewed by 1519
Abstract
In recent years, significant advances have been made in diversifying the capabilities of communication systems by using reconfigurable antennas. There are many types of reconfigurable antennas—to achieve pattern, frequency, or polarization reconfigurability. These antennas are reconfigured either by the mechanical rotation of surfaces [...] Read more.
In recent years, significant advances have been made in diversifying the capabilities of communication systems by using reconfigurable antennas. There are many types of reconfigurable antennas—to achieve pattern, frequency, or polarization reconfigurability. These antennas are reconfigured either by the mechanical rotation of surfaces or by enabling or disabling specific sections of the structure using electrical switches. This paper focuses on the concept of a polarization reconfigurable antenna based on an active reflector-backed metasurface. An antenna system based on an active reflector-backed metasurface combined with a planar dipole is designed to achieve reconfigurable polarization. The polarization of the designed antenna can be switched between linear and circular polarization states using positive-intrinsic-negative diodes located in the unit cell elements of the metasurface. The measured results correlate well with the simulated results. The antenna has a physical size of 308 × 162 × 35 mm3 with an impedance bandwidth of 4.5% in the linear state and 7% in the circular state, as well as an axial ratio bandwidth larger than 8.3%. Full article
(This article belongs to the Special Issue Metamaterials and Surfaces: Theoretical and Experimental Research)
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14 pages, 4687 KiB  
Article
What Makes a Floor Slippery? A Brief Experimental Study of Ceramic Tiles Slip Resistance Depending on Their Properties and Surface Conditions
by Ewa Sudoł, Marcin Małek, Mateusz Jackowski, Marcin Czarnecki and Cezary Strąk
Materials 2021, 14(22), 7064; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14227064 - 21 Nov 2021
Cited by 4 | Viewed by 2346
Abstract
The safety of the use of construction facilities should be a priority in today’s busy world, where it is not difficult to get involved in an accident. Most of them, due to the pace at which we live today, are caused by slips, [...] Read more.
The safety of the use of construction facilities should be a priority in today’s busy world, where it is not difficult to get involved in an accident. Most of them, due to the pace at which we live today, are caused by slips, trips, and falls. This work presents a detailed analysis of the resistance of ceramic floors to these events, taking into account the surface properties and conditions (dry/wet), which, as presented, have a significant impact on the final slip resistance values. This study also investigates the relationship between surface roughness and anti-slip properties. According to the obtained results, it can be concluded that the surface roughness is not the main determinant of slip resistance, and the final value of it is influenced by many components that should be considered together and not be neglected when designing the surface finish. Furthermore, based on experimental measurements, it can be noted that the highest slip resistance in both wet and dry conditions showed the unglazed tiles with lapatto finish and the glazed tiles without any extra finish. Full article
(This article belongs to the Special Issue Metamaterials and Surfaces: Theoretical and Experimental Research)
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17 pages, 7097 KiB  
Article
Safety Comes First: Novel Styrene Butadiene Rubber (SBR) and Ethylene Propylene Diene Monomer (EPDM) Surfaces as a Response to Sport Injuries
by Cezary Strąk, Marcin Małek, Mateusz Jackowski and Ewa Sudoł
Materials 2021, 14(13), 3737; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14133737 - 03 Jul 2021
Cited by 1 | Viewed by 2460
Abstract
An athlete’s performance depends not only on the shoes they wear but also on the surface used in sports facilities. In addition, it can significantly contribute to reducing injuries, which are easy to get during sports competitions. In the present study, we wanted [...] Read more.
An athlete’s performance depends not only on the shoes they wear but also on the surface used in sports facilities. In addition, it can significantly contribute to reducing injuries, which are easy to get during sports competitions. In the present study, we wanted to investigate whether recycled styrene butadiene rubber (SBR) and ethylene propylene diene monomer (EPDM) could be used in the production of sports surfaces. For this purpose, we designed three different sports surfaces: (1) SBR covered with a thin EPDM spray layer on the top, (2) clean EPDM, and (3) bottom SBR layer with the top layer of EPDM. The test program of these surfaces included in its scope: shock absorption, vertical deformation, tensile strength, abrasion resistance, and slip resistance tests. Our research also involved the influence of the substrate under surface, temperature, and surface conditions. Presented results show that both materials, in the right proportions, can be used in the production of sports surfaces. Full article
(This article belongs to the Special Issue Metamaterials and Surfaces: Theoretical and Experimental Research)
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