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Nanolaminate Multilayer Coatings
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Nanolaminate Multilayer Coatings

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (15 July 2021) | Viewed by 10169

Special Issue Editor

Dr. Dmitry Wainstein

E-Mail Website
Guest Editor
Surface Phenomena Researches Group, Radio Str., 23/9 bdg. 2, off. 475, 105005 Moscow, Russia
Interests: surface analysis; electronic structure; nano- and micro-structures; metals and alloys; unordered structures; strength, durability, and fracture of materials and constructions; tribology; phase equilibrium and transformations; thin films and nanotechnology; multilayer systems

Special Issue Information

Dear Colleagues,

I am glad to invite you to present results of your studies in this Special Issue dedicated to “Nanolaminate Multilayer Coatings”. Such coatings have attracted the attention of many research groups around the world because they exhibit properties that cannot be achieved in single layer ones and in bulk materials. In several cases, nanolaminate multilayer coatings combine multiple useful properties, for example, good wear resistance and high heat reflectance. Nanolaminate metal-dielectric coatings could act as plasmonic metamaterials. Structure of interfaces between individual layers, the “coating–substrate” interface, and free surface play major roles in coatings’ properties formation.

Therefore, the topics of interest for this Special Issue include, but are not limited to the following:

  • Wear-resistant coatings
  • Antireflection and high reflectance coatings
  • Optical coatings
  • Surface and interfaces
  • Atomic and electronic structure
  • New fabrication and characterization techniques

Dr. Dmitry Wainstein
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. Coatings is an international peer-reviewed open access monthly 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.

Published Papers (3 papers)

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Research

16 pages, 3725 KiB  
Article
Anomalous Heat Transport in Nanolaminate Metal/Oxide Multilayer Coatings: Plasmon and Phonon Excitations
by Anatoly Kovalev, Dmitry Wainstein, Vladimir Vakhrushev, Raul Gago and Jose Luis Endrino
Coatings 2020, 10(3), 260; https://doi.org/10.3390/coatings10030260 - 11 Mar 2020
Cited by 1 | Viewed by 2300
Abstract
In this work, the anomalous reduction in the thermal conduction observed for nanolaminate metal-dielectric multilayers has been extended to the case of oxides. For this purpose, Ag/Al2O3 coatings were produced with different layer thicknesses (from 1 to 5 nm for [...] Read more.
In this work, the anomalous reduction in the thermal conduction observed for nanolaminate metal-dielectric multilayers has been extended to the case of oxides. For this purpose, Ag/Al2O3 coatings were produced with different layer thicknesses (from 1 to 5 nm for Ag and 8 to 40 nm for Al2O3) and numbers of stacks. It was found that the thermal conduction is significantly lower in such metal–oxide nanolaminates compared to the bulk oxide. Such anomalous behaviour is explained by the influence of plasmon and phonon propagation confinement in nanolayers and at the interfaces. To this end, the characteristics of the different types of acoustic and optical phonon waves propagating in the multilayer coating have been studied. In particular, the electronic structures of the different layers and their influences on the plasmon resonance are investigated as a function of the multilayer design. The plasmon-polariton mechanism of energy transfer through oxide–metal and metal–oxide interfaces is discussed. Full article
(This article belongs to the Special Issue Nanolaminate Multilayer Coatings)
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9 pages, 2132 KiB  
Article
Chemical Changes of Graphene Oxide Thin Films Induced by Thermal Treatment under Vacuum Conditions
by María J. Hortigüela, Denise Machado, Igor Bdikin, Victor Neto and Gonzalo Otero-Irurueta
Coatings 2020, 10(2), 113; https://doi.org/10.3390/coatings10020113 - 29 Jan 2020
Cited by 13 | Viewed by 4701
Abstract
Reduction of graphene oxide is one of the most promising strategies for obtaining bulk quantities of graphene-like materials. In this study, graphene oxide was deposited on SiO2 and reduced by annealing at 500 K under vacuum conditions (5 × 10−1 Pa). [...] Read more.
Reduction of graphene oxide is one of the most promising strategies for obtaining bulk quantities of graphene-like materials. In this study, graphene oxide was deposited on SiO2 and reduced by annealing at 500 K under vacuum conditions (5 × 10−1 Pa). Here, graphene oxide films as well as their chemical changes upon heating were characterized in depth by X-ray photoelectron spectroscopy, Raman spectroscopy, and scanning electron and atomic force microscopies. From the chemical point of view, the as prepared graphene oxide films presented a large quantity of oxidized functional groups that were reduced to a large extent upon heating. Moreover, residual oxidized sulfur species that originated during the synthesis of graphene oxide (GO) were almost completely removed by heating while nitrogen traces were integrated into the carbon framework. On the other hand, regarding structural considerations, reduced graphene oxide films showed more homogeneity and lower roughness than graphene oxide films. Full article
(This article belongs to the Special Issue Nanolaminate Multilayer Coatings)
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14 pages, 14301 KiB  
Article
Preparation and Photocatalytic Property of Ag Modified Titanium Dioxide Exposed High Energy Crystal Plane (001)
by Li-Yuan Zhang, Jia You, Qian-Wen Li, Zhi-Hong Dong, Ya-Jie Zhong, Yan-Lin Han and Yao-Hui You
Coatings 2020, 10(1), 27; https://doi.org/10.3390/coatings10010027 - 1 Jan 2020
Cited by 9 | Viewed by 2699
Abstract
TiO2 exposed high energy crystal plane (001) was prepared by the sol-gel process using butyl titanate as the titanium source and hydrofluoric acid as the surface control agent. Ag-TiO2 was prepared by depositing Ag on the crystal plane of TiO2 [...] Read more.
TiO2 exposed high energy crystal plane (001) was prepared by the sol-gel process using butyl titanate as the titanium source and hydrofluoric acid as the surface control agent. Ag-TiO2 was prepared by depositing Ag on the crystal plane of TiO2 (101) with a metal halide lamp. The surface morphology, interplanar spacing, crystal phase composition, ultraviolet absorption band, element composition, and valence state of the samples were characterized by using field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM), X-ray diffraction (XRD), ultraviolet-visible absorption spectrum (UV-Vis-Abs), and X-ray photoelectron spectroscopy (XPS), respectively. The formation mechanism of high energy crystal plane (001) was discussed, and the photocatalytic activities were evaluated by following degradation of methyl orange. The results show that TiO2 exposed the (001) crystal plane with a ratio of 41.8%, and Ag can be uniformly deposited on the crystal plane of TiO2 (101) by means of metal halide lamp deposition. Under the same conditions, the degradation rate of methyl orange by deposited Ag-TiO2 reaches as much as 93.63% after 60 min using the metal halide lamp (300 W) as an illuminant, 81.89% by non-deposited samples and 75.20% by nano-TiO2, causing a certain blue shift in the light absorption band edge of TiO2. Ag-TiO2 has the best photocatalytic performance at a pH value of 2. Full article
(This article belongs to the Special Issue Nanolaminate Multilayer Coatings)
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