Special Issue "Materials and Coatings for Extreme Environments"

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

Deadline for manuscript submissions: 31 October 2020.

Special Issue Editor

Dr. Judit Telegdi
E-Mail Website
Guest Editor
Research Centre for Natural Sciences, Hungarian Academy of Sciences, Institute of Materials and Environmental Chemistry, 1117 Budapest, Magyar tudósok körútja 2., Hungary
Tel. +36 304754199
Interests: corrosion; mechanisms of corrosion and corrosion inhibition; nanolayers against corrosion; self-healing and slow-release microsphers/microcapsules
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

It is my pleasure to invite and welcome you to contribute to the Special Issue “Materials and Coatings for Extreme Environment”. The aim of this issue is to discuss the main challenges of all kind of materials and special coatings with respect to novel materials and areas of applications under extreme environments in order to improve efficiency in areas like transport, space, energy, communication, deep sea technologies, transport, etc. Coatings for extreme environments represent materials that modify the surface but do not change the bulk material properties and, at the same time, face severe combined chemical, wear, thermal, and mechanical loads.

From year to year, there is a significant development in the efficiency of operating systems where the environment is very hot or cold or corrosive and the materials are under high friction, radiation loading, and pressure. Special conditions require a different selection of bulk and coating substances. A limited number of materials are available for combined resistivity, e.g., for controlled thermal and mechanical as well as thermal and corrosive stability. With contributions from researchers of different specialties, this issue will explore the latest advances and challenges in materials and coatings applied under extreme environments and will demonstrate the development in functional coatings, the breakthrough and innovation in technologies as well as in methodologies to characterize novel materials. This Special Issue would like to invite leading academics, researchers, scientists, and engineers to share their research achievements in these fields.

The hot topics to be covered by this Special Issue will serve as a forum for publications in the following categories:

  • Scientific fundamentals for composite materials operating under extreme conditions; relationship between structures and properties; materials for extreme physical/chemical environment and irradiation conditions;
  • Advanced ceramic coatings used under extreme environments, principle of design; materials for low and ultra-low temperatures;
  • Thermal barrier coatings for the aerospace industry, materials for future aerospace programs; fireproof materials;
  • Self-lubricating hard/composite coatings for extreme environments;
  • Advanced coatings for corrosion protection in extreme environments; materials for extreme corrosive, acid, and alkali conditions;
  • Chameleon coatings to reduce friction and wear in extreme environments.

The papers could cover original research work and can review one of the aforementioned topics.

Prof. Dr. Judit Telegdi
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 papers will be 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 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

  • coatings
  • extreme environment
  • high/low temperature
  • friction
  • wear
  • ceramic coatings
  • anticorrosion coatings
  • self-lubricant coatings

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Open AccessArticle
The Photocatalytic Degradation of Vehicle Exhausts by an Fe/N/Co–TiO2 Waterborne Coating under Visible Light
Materials 2019, 12(20), 3378; https://doi.org/10.3390/ma12203378 - 16 Oct 2019
Abstract
Based on the three-dimensional network structure of a polymer and the principle of photocatalysts, a visible-light-responsive and durable photocatalytic coating for the degradation of vehicle exhaust (VE) has been constructed using a waterborne acrylic acid emulsion as the coating substrate; Fe/N/Co–TiO2 nanoparticles [...] Read more.
Based on the three-dimensional network structure of a polymer and the principle of photocatalysts, a visible-light-responsive and durable photocatalytic coating for the degradation of vehicle exhaust (VE) has been constructed using a waterborne acrylic acid emulsion as the coating substrate; Fe/N/Co–TiO2 nanoparticles (NPs) as photocatalytic components; and water, pigments, and fillers as additives. The visible-light-responsive Fe/N/Co–TiO2 NPs with an average size of 100 nm were prepared by sol-gel method firstly. The co-doping of three elements extended the absorption range of the modified TiO2 nanoparticles to the visible light region, and showed the highest light absorption intensity, which was confirmed by the ultraviolet-visible absorption spectra (UV-Vis). X-ray diffraction (XRD) measurements showed that element doping prevents the transition from anatase to rutile and increases the transition temperature. TiO2 was successfully doped due to the reduction of the chemical binding energy of Ti, as revealed by X-ray photoelectron spectroscopy (XPS). The degradation rates of NOX, CO, and CO2 in VE by Fe/N/Co–TiO2 NPs under visible light were 71.43%, 23.79%, and 21.09%, respectively. In contrast, under the same conditions, the degradation efficiencies of coating for VE decreased slightly. Moreover, the elementary properties of the coating, including pencil hardness, adhesive strength, water resistance, salt, and alkali resistance met the code requirement. The photocatalytic coating exhibited favorable reusability and durability, as shown by the reusability and exposure test. Full article
(This article belongs to the Special Issue Materials and Coatings for Extreme Environments)
Show Figures

Graphical abstract

Open AccessArticle
The Influence of Post Weld Heat Treatment Precipitation on Duplex Stainless Steels Weld Overlay towards Pitting Corrosion
Materials 2019, 12(20), 3285; https://doi.org/10.3390/ma12203285 - 10 Oct 2019
Abstract
Duplex stainless steels (DSSs) are complex materials and they have been widely used in the marine environment and gas industries, primarily offering a better resistance of pitting corrosion and good mechanical properties. In the present work, the effects of heat treatment on duplex [...] Read more.
Duplex stainless steels (DSSs) are complex materials and they have been widely used in the marine environment and gas industries, primarily offering a better resistance of pitting corrosion and good mechanical properties. In the present work, the effects of heat treatment on duplex stainless steel (DSS) weld overlay samples that were heat treated at three different temperatures, namely 350 °C, 650 °C, and 1050 °C, and followed by air cooling and water quenching were studied. Stress relief temperature at 650 °C had induced sigma phase precipitation in between delta ferrite and austenite (δ/γ) grain boundaries, resulting in the loss of corrosion resistance in the weld metal. Interestingly, post weld heat treatment (PWHT) test samples that were reheated to solution annealing temperature had shown no weight loss. The ferrite count determination in the region of weld metal overlay increased at hydrogen relief and decreased at stress relief temperatures due to slow cooling, which is more favorable to austenite formation. The amount of ferrite in the weld metals was significantly reduced with the increment of solution anneal temperature to 1050 °C because of sufficient time for the formation of austenite and giving optimum equilibrium fraction in the welds. Full article
(This article belongs to the Special Issue Materials and Coatings for Extreme Environments)
Show Figures

Figure 1

Open AccessArticle
Effect of Ultraviolet–Ozone Treatment on the Properties and Antibacterial Activity of Zinc Oxide Sol-Gel Film
Materials 2019, 12(15), 2422; https://doi.org/10.3390/ma12152422 - 29 Jul 2019
Abstract
To combat infectious diseases, zinc oxide (ZnO) has been identified as an effective antibacterial agent; however, its performance can be adversely affected by harsh application environments. The ozone impact on ZnO antibacterial film needs to be evaluated prior to its application in an [...] Read more.
To combat infectious diseases, zinc oxide (ZnO) has been identified as an effective antibacterial agent; however, its performance can be adversely affected by harsh application environments. The ozone impact on ZnO antibacterial film needs to be evaluated prior to its application in an ozone disinfection system. In this study, ZnO films synthesized via sol-gel/spin-coating were subjected to ultraviolet–ozone (UVO) treatment for different periods. Surface investigations using scanning electron microscopy, ultraviolet–visible spectroscopy, and X-ray photoelectron spectroscopy revealed that the treatment-induced film changes. With longer UVO treatment, the surface porosity of the film gradually increased from 5% to 30%, causing the transmittance reduction and absorbance increase in visible-light range. Phase transformation of Zn(OH)2 to ZnO occurred during the first 10 min of UVO treatment, followed by oxygen uptake as a consequence of the reaction with reactive oxygen species generated during UVO treatment. However, despite these surface changes, the satisfactory antibacterial activity of the synthesized ZnO film against Staphylococcus aureus and Escherichia coli was sustained even after 120 min of UVO treatment. This indicates that the UVO-induced surface changes do not have a significant effect on the antibacterial performance and that the ZnO sol-gel film possesses good functional durability in ozone environments. Full article
(This article belongs to the Special Issue Materials and Coatings for Extreme Environments)
Show Figures

Figure 1

Back to TopTop