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Electron-Ion-Plasma Equipment and Processes for Formation of Functional Layers and...
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Electron-Ion-Plasma Equipment and Processes for Formation of Functional Layers and Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 2551

Special Issue Editor

Prof. Dr. Nicolai N. Koval

E-Mail Website
Guest Editor
Institute of High Current Electronics of Siberian Branch of the Russian Academy of Sciences, Tomsk 634055, Russia
Interests: electron beams; electron; ion and plasma sources; electron-ion-plasma modification of material surface; physics of high-current electron beam; physics of plasma; physics of vacuum discharges; plasma emission electronics; generation of low-temperature plasma; film and coating deposition; PVD-methods; nitriding
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Electron-Ion–Plasma Equipment and Processes for Formation of Functional Layers and Coatings”.

As electron beams are highly efficient both in their formation and use, they are increasingly being used in science and technology. Indeed, the frequency of their application is growing as electron-beam equipment is developed and the irradiation processes of electron beams on materials are studied. The purpose of the present Special Issue is to highlight the current state of and trends in research and technology, development, and use of electron beams with the widest range of their parameters, from continuous to pulsed, from low- to high-current, and from low- to high-energy. Electron beams are widely and efficiently used to create various kinds of functional coatings as well as to improve the properties of coatings produced by other methods.

One characteristic of electron-beam deposition is the high purity and reproducibility of the process due to the use of high vacuum. The produced coatings are non-porous and high-density, and they can be multi-component. The trend of modern technologies is to use a hybrid method combining—for example—coating deposition and electron-beam treatment to improve their properties in a single vacuum cycle. It is possible to achieve results that are not realized using spatially separated processes (deposition and electron-beam treatment). These processes and the results of their use are intended to be covered in this Special Issue. This Special Issue seeks original and review articles presented by the leading collectives and scientists of the world scientific community in the field of electron-beam equipment and technologies. We hope these papers will demonstrate some of the most significant works performed in recent years as well as trends in the development of this promising scientific and technological direction and its interaction with related areas.

In particular, the topics of interest include but are not limited to:

  • Equipment for an electron-beam deposition and modification of material surface;
  • Processes of electron-beam deposition;
  • Electron-beam modification of material surface;
  • Properties of electron-beam coatings;
  • Complex electron-beam and ion-plasma engineering of material surface.

Prof. Dr. Nicolai N. Koval
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.

Keywords

  • electron beams
  • electron-beam deposition
  • electron-beam modification
  • functional coatings
  • coating properties
  • combined processes of surface modification
  • coating application

Published Papers (3 papers)

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Research

16 pages, 4769 KiB  
Article
Features of Electron Beam Processing of Mn-Zn Ferrites in the Fore-Vacuum Pressure Range in Continuous and Pulse Modes
by Aleksandr S. Klimov, Ilya Yu. Bakeev, Anna V. Dolgova, Andrey V. Kazakov, Nikita S. Korablev and Aleksey A. Zenin
Coatings 2023, 13(10), 1766; https://doi.org/10.3390/coatings13101766 - 13 Oct 2023
Cited by 1 | Viewed by 744
Abstract
The results of electron beam processing of Mn-Zn ferrite samples using pulsed and continuous electron beams in the fore-vacuum pressure range (10 Pa) are presented. We find that continuous electron beam processing leads to surface structuring of the ferrite, changes in elemental composition [...] Read more.
The results of electron beam processing of Mn-Zn ferrite samples using pulsed and continuous electron beams in the fore-vacuum pressure range (10 Pa) are presented. We find that continuous electron beam processing leads to surface structuring of the ferrite, changes in elemental composition on the surface, and electrical property modification. The degree of ferrite parameter changes exhibits a threshold behavior. For surface processing temperatures below 900 °C, changes are barely noticeable, while for temperatures over 1100 °C the surface resistance decreases by more than an order of magnitude to values of less than 3 kOhm. Electron beam processing with millisecond pulse duration and pulse energy density exceeding 15 J/cm2 results in the formation of low zinc content melt islands, while the remaining surface area (outside the islands) elemental content and ferrite properties remain largely unchanged. The thickness of the modified layer depends on the processing mode and can be controlled over the range of 0.1–0.5 mm. Due to its low resistance, the modified layer can be utilized to enhance the RF-absorbing properties of the ferrite, which is important in the design of modern magnetic elements of electronic equipment. Full article
(This article belongs to the Special Issue Electron-Ion-Plasma Equipment and Processes for Formation of Functional Layers and Coatings)
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11 pages, 4872 KiB  
Article
Synthesis of LiPON Solid Electrolyte Films by Thermal Evaporation of Lithium Orthophosphate
by Nikolay Gavrilov, Alexander Kamenetskikh, Petr Tretnikov and Alexey Ershov
Coatings 2023, 13(10), 1765; https://doi.org/10.3390/coatings13101765 - 13 Oct 2023
Viewed by 833
Abstract
Lithium phosphorus-oxynitride (LiPON) films were deposited by the method of anodic evaporation of Li3PO4 in the nitrogen plasma of a low-pressure arc. A method for adjusting the degree of decomposition of vapors is proposed based on a change in the [...] Read more.
Lithium phosphorus-oxynitride (LiPON) films were deposited by the method of anodic evaporation of Li3PO4 in the nitrogen plasma of a low-pressure arc. A method for adjusting the degree of decomposition of vapors is proposed based on a change in the frequency of interaction of electrons with vapors at a constant heating power of the anode-crucible. The conditions ensuring the formation of films with a homogeneous microstructure and ionic conductivity (1–2) × 10−6 S/cm at a deposition rate of 8 nm/min have been determined. It is shown that the degree of vapor dissociation critically affects the morphology of the films and the magnitude of their ionic conductivity. The results of cyclic tests of LiPON films deposited by anodic evaporation in a low-pressure arc are presented. Full article
(This article belongs to the Special Issue Electron-Ion-Plasma Equipment and Processes for Formation of Functional Layers and Coatings)
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15 pages, 7968 KiB  
Article
Effect of Thickness of Ti Coating Deposited by Vacuum Arc Melting on Fatigue Behavior of Aluminum Alloy Al–5%Si
by Dmitrii Zaguliaev, Yurii Ivanov, Suresh Gudala, Oleg Tolkachev, Krestina Aksenova, Sergey Konovalov and Vitaly Shlyarov
Coatings 2023, 13(10), 1764; https://doi.org/10.3390/coatings13101764 - 13 Oct 2023
Cited by 1 | Viewed by 772
Abstract
Fatigue strength tests of Ti-coated aluminum alloys with a thickness of 1 µm, 3 µm, and 5 µm were conducted to investigate the effect of the coating thickness on fatigue strength. Under the same applied stress amplitude, the optimum thickness with the most-extended [...] Read more.
Fatigue strength tests of Ti-coated aluminum alloys with a thickness of 1 µm, 3 µm, and 5 µm were conducted to investigate the effect of the coating thickness on fatigue strength. Under the same applied stress amplitude, the optimum thickness with the most-extended fatigue life was around the coating thickness of 5 µm. This may be attributed to the good resistance to surface cracks under repeated loads. The results suggested that a lower fatigue life of a coating thickness of 1 µm results from the fracture of the coating layer under the strong influence of the deformation of the substrate. This could be due to the higher tensile residual stress induced in the substrate near the coating layer and substrate interface. The titanium coating restricted the initiation of offsets and cracks beneath the surface of the specimen, which may be attributed to the high strength of the Al–5%Si substrate, good flexibility, and strong adhesion, which provided sufficient compressive stress to suppress slip band protrusions. The fatigue life and fatigue limit increased proportionally to the thickness of the titanium coating due to changes in the surface roughness and adhesion capability. Full article
(This article belongs to the Special Issue Electron-Ion-Plasma Equipment and Processes for Formation of Functional Layers and Coatings)
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