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Coatings
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Applications of Ceramic and Cermet Coatings
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Applications of Ceramic and Cermet Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Ceramic Coatings and Engineering Technology".

Deadline for manuscript submissions: closed (31 March 2025) | Viewed by 8937

Special Issue Editors

Prof. Dr. Leszek A. Dobrzanski

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Guest Editor
Medical and Dental Engineering Centre for Research, Design and Production ASKLEPIOS, 44-100 Gliwice, Poland
Interests: materials engineering; nanotechnology; biomaterials; medical; dental; manufacturing and surface engineering; machine building and automation; management and organization
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Anna D. Dobrzańska-Danikiewicz

E-Mail Website
Guest Editor
Department of Materials Science, Technology and Machine Operation, Institute of Mechanical Engineering, Faculty of Mechanical Engineering, University of Zielona Góra, 65-516 Zielona Góra, Poland
Interests: materials; surface and mechanical engineering; nanotechnology; biomaterials; management and organization
Special Issues, Collections and Topics in MDPI journals
Dr. Lech Bolesław Dobrzański

E-Mail Website
Guest Editor
Medical and Dental Centre SOBIESKI, 12/1 King Jana III Sobieskiego St., 44-100 Gliwice, Poland
Interests: dental and materials engineering; nanotechnology; biomaterials; medical, manufacturing and surface engineering; computer-aided engineering; medical electronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ceramic and cermet coatings are always applied with the aim of improving the final product. Such surface treatment of an element leads to an improvement in its mechanical, physicochemical, tribological, anticorrosion, and other functional properties, regardless of the core material properties. Owing to the technical capabilities of advanced research methods, changes in the structure of materials can be observed and characterized not only in the microscale but also in the nanoscale. The expected result can be achieved, for example, via physical and chemical vapor deposition of coatings, atomic layer deposition, laser alloying, feeding and cladding, and heat and detonation spraying. Another commonly used technique is powder metallurgy, which ensures different compositions of powders in surface layers. The wide range of possibilities offered by the use of multilayer, multiphase, and gradient coatings can be considered separately. Products with ceramic and cermet coatings are used in various industry branches, such as in the tool, machine, automotive, aviation, space, electronics, and precision industries, as well as in medical and dental engineering.

We encourage you to present modern methods of applying ceramic and cermet coatings along with the areas of their current and future implementations in processing and manufacturing. This should be accompanied by a broad characterization of the structure and properties of these coatings. Please pay attention to the ecological and economic aspects of this subject matter. Issues related to the future development trends in this thematic area, supply chain management, and organization of production processes can also be considered. However, the scope of this Special Issue is not limited to the aforementioned domains; it remains open to other aspects that are currently being dealt with by the researchers in this field.

We are confident that this endeavor of ours will inspire scientists and entrepreneurs to further develop and improve ceramic and cermet coatings.

We are looking forward to receiving your submissions.

Prof. Dr. Leszek A. Dobrzanski
Prof. Dr. Anna D. Dobrzańska-Danikiewicz
Dr. Lech Bolesław Dobrzański
Guest Editors

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

  • ceramic and cermet coatings
  • vapor deposition
  • laser surface treatment
  • spraying
  • powder metallurgy

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Published Papers (6 papers)

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Research

19 pages, 11375 KiB  
Article
Thermal Protection and Dielectric Properties of Borosilicate Coatings for SiCf/SiC Composites Under High-Temperature Oxidation
by Xiaohui Dong, Lianyi Wang, Ruiying Luo, Guoteng Zhang, Jinsen Wang, Xiaotian Yang, Huiyong Yang and Juntong Huang
Coatings 2024, 14(11), 1456; https://doi.org/10.3390/coatings14111456 - 15 Nov 2024
Viewed by 1134
Abstract
Currently, oxidation of SiCf/SiC composites in harsh environments such as high temperatures has become a key challenge for their application in high-temperature structural wave-absorbing materials. In this study, borosilicate glass (BSZ) coatings were prepared using the thermal nitrogen–oxygen process. The evolution [...] Read more.
Currently, oxidation of SiCf/SiC composites in harsh environments such as high temperatures has become a key challenge for their application in high-temperature structural wave-absorbing materials. In this study, borosilicate glass (BSZ) coatings were prepared using the thermal nitrogen–oxygen process. The evolution of mechanical and coating microwave dielectric properties of the composites with and without BSZ coatings after oxidation at 1100 °C, 1200 °C, 1300 °C and 1400 °C was investigated. The results showed that the mechanical strength of the BSZ-coated SiCf/SiC specimens remains virtually unchanged, with a remarkable strength retention rate of 94%. The exceptional oxidation resistance of these coatings can be attributed to the formation of self-healing oxides and the reinforcing “pinning” effect of ZrSiO4. With an increase in oxidation temperature, the dielectric properties of the oxidized coatings are determined by the intrinsic properties of the generators and the porosity. Overall, these features highlight the potential of borosilicate coatings in the field of electromagnetic wave-absorbing composites, and the current work establishes a correlation between the oxidized microscopic properties of the coatings and the dielectric properties. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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17 pages, 4510 KiB  
Article
Study on the Stability of Fe/Al2O3 Interface in Metal-Based Cermets Using Thermodynamic Modeling
by Xiangyu Wei, Tengfei Sun, Kuai Zhang and Yungang Li
Coatings 2024, 14(9), 1132; https://doi.org/10.3390/coatings14091132 - 3 Sep 2024
Viewed by 962
Abstract
Iron-based cermet has the advantages of high-temperature resistance, low price, good performance, and so on. At present, most of the studies on cermets are focused on the measurement of macroscopic properties and optical microscopic characterization, while there are few microscopic studies on the [...] Read more.
Iron-based cermet has the advantages of high-temperature resistance, low price, good performance, and so on. At present, most of the studies on cermets are focused on the measurement of macroscopic properties and optical microscopic characterization, while there are few microscopic studies on the interface structure. In this paper, based on density functional theory (DFT), the stability of the Fe/Al2O3 interface is studied, and the stability difference and interface formation mechanism of different end combinations are investigated. By calculating the surface energy, adhesion work, interface energy, density of states, charge density, differential charge density, and so on, it was concluded that the stability of the O-terminal interface was greater than that of the Al interface. It has a certain guiding role in the preparation of Fe/Al2O3 cermet materials. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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11 pages, 3382 KiB  
Article
3D-Printed Conformal Thin Film Thermocouple Arrays for Distributed High-Temperature Measurements
by Jun Liu, Lida Xu, Xiong Zhou, Fuxin Zhao, Yusen Wang, Siqi Wang, Wenlong Lv, Daoheng Sun and Qinnan Chen
Coatings 2024, 14(8), 967; https://doi.org/10.3390/coatings14080967 - 2 Aug 2024
Viewed by 1798
Abstract
Conformal thin film sensing represents a cutting-edge technology capable of precisely measuring complex surface temperature fields under extreme conditions. However, fabricating high-temperature-resistant conformal thin film thermocouple arrays remains challenging. This study reports a method for manufacturing conformal thin film thermocouple arrays on metal [...] Read more.
Conformal thin film sensing represents a cutting-edge technology capable of precisely measuring complex surface temperature fields under extreme conditions. However, fabricating high-temperature-resistant conformal thin film thermocouple arrays remains challenging. This study reports a method for manufacturing conformal thin film thermocouple arrays on metal spherical surfaces using a printable paste composed of silicates and Ag. Specifically, the use of silicate glass phases enhances the high-temperature performance of the silver printable paste, enabling the silver ink coatings to withstand temperatures up to 947 °C and survive over 25 h at 900 °C. The thermocouples, connected to Pt thin films, exhibited a Seebeck coefficient of approximately 17 μV/°C. As a proof of concept, an array of six Ag/Pt thin film thermocouples was successfully fabricated on a metal spherical surface. Compared to traditional wire-type thermocouples, the conformal thin film thermocouple arrays more accurately reflect temperature variations at different points on a spherical surface. The Ag/Pt conformal thin film thermocouple arrays hold promise for monitoring temperature fields in harsh environments, such as aerospace and nuclear energy applications. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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14 pages, 7718 KiB  
Article
Development of Method for Applying Multilayer Gradient Thermal Protective Coatings Using Detonation Spraying
by Dastan Buitkenov, Aiym Nabioldina and Nurmakhanbet Raisov
Coatings 2024, 14(7), 899; https://doi.org/10.3390/coatings14070899 - 18 Jul 2024
Cited by 3 | Viewed by 1489
Abstract
In this work, multilayer gradient coatings obtained by detonation spraying were studied. To obtain a multilayer gradient coating by detonation spraying, two modes with different numbers of shots of NiCrAlY and YSZ were developed. The presented results demonstrate the effectiveness of creating a [...] Read more.
In this work, multilayer gradient coatings obtained by detonation spraying were studied. To obtain a multilayer gradient coating by detonation spraying, two modes with different numbers of shots of NiCrAlY and YSZ were developed. The presented results demonstrate the effectiveness of creating a gradient structure in coatings, ensuring a smooth transition from metal to ceramic materials. Morphological analysis of the coatings confirmed a layered gradient structure, consisting of a lower metallic (NiCrAlY) layer and an upper ceramic (YSZ) layer. The variation in the contents of elements along the thickness of the coatings indicates the formation of a gradient structure. X-ray analysis shows that all peaks in the X-ray diffraction patterns correspond to a single ZrO2 phase, indicating the formation of a non-transformable tetragonal primary (t′) phase characteristic of the thermal protective coatings. This phase is known for its stability and resistance to phase transformation under changing operating temperature conditions. As the thickness of the coatings increased, an improvement in their mechanical characteristics was found, such as a decrease in the coefficient of friction, an increase in hardness, and an increase in surface roughness. These properties make such coatings more resistant to mechanical wear, especially under sliding conditions, which confirms their prospects for use in a variety of engineering applications, including aerospace and power generation. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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22 pages, 14668 KiB  
Article
Investigation of the Influence of Powder Fraction on Tribological and Corrosion Characteristics of 86WC-10Co-4Cr Coating Obtained by HVOF Method
by Bauyrzhan Rakhadilov, Nazerke Muktanova, Dauir Kakimzhanov, Zarina Satbayeva, Leila Kassenova and Nurtoleu Magazov
Coatings 2024, 14(6), 651; https://doi.org/10.3390/coatings14060651 - 21 May 2024
Cited by 6 | Viewed by 1268
Abstract
Samples using powders of four different fractions, 15–20 μm, 20–30 μm, 30–40 μm and 40–45 μm, were fabricated to investigate the wear resistance, corrosion resistance and tribological properties of the 86WC-10Co-4Cr coating obtained using the HVOF method. The phase composition, microstructure and elemental [...] Read more.
Samples using powders of four different fractions, 15–20 μm, 20–30 μm, 30–40 μm and 40–45 μm, were fabricated to investigate the wear resistance, corrosion resistance and tribological properties of the 86WC-10Co-4Cr coating obtained using the HVOF method. The phase composition, microstructure and elemental distribution were analyzed using X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy techniques. The hardness was measured on a Vickers microhardness tester, the friction coefficient and wear rate were investigated using a tribometer, and the corrosion resistance was evaluated on an electrochemical corrosion station. The results showed that the cross-sectional microstructure of the coating is mainly represented by multifaceted WC crystals embedded in the Co-Cr matrix and the presence of lower tungsten carbides, particularly W2C. The 15–20 μm fraction particles were subjected to superheating, contributing to the decarburization process. The 20–30 µm and 30–40 µm sized particles prevented overheating and had a more homogeneous structure. The 40–45 µm powder fractions did not reach sufficient temperature for complete melting, resulting in the formation of pores in the coating layers. The phase composition of the coatings included WC, W2C and CoO phases. According to the results of the study, it was found that the optimal powder fraction for coating the 86WC-10Co-4Cr composition with improved characteristics is the fraction of the 20–30 µm sized particles. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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17 pages, 10380 KiB  
Article
Influence of Varying the Spraying Distance on the Structural-Phase State and Mechanotribological Properties of 86WC-10Co-4Cr-Based Coatings Obtained by the HVOF Method
by Bauyrzhan Rakhadilov, Nazerke Muktanova, Dauir Kakimzhanov, Meruert Adilkanova, Sherzod Kurbanbekov and Saule Abdulina
Coatings 2024, 14(3), 264; https://doi.org/10.3390/coatings14030264 - 22 Feb 2024
Cited by 8 | Viewed by 1542
Abstract
This paper presents the results of a metallographic and tribological study of 86WC-10Co-4Cr coatings obtained by the HVOF method on the Termika-3 unit at varying spraying distances. The influence of spraying distance on the coating microstructure, phase composition, as well as mechanical and [...] Read more.
This paper presents the results of a metallographic and tribological study of 86WC-10Co-4Cr coatings obtained by the HVOF method on the Termika-3 unit at varying spraying distances. The influence of spraying distance on the coating microstructure, phase composition, as well as mechanical and tribological properties, was studied. According to the results of the study, it was found that the optimum spraying distance for 86WC-10Co-4Cr coatings with improved wear resistance and hardness characteristics and low porosity is 300 mm. Full article
(This article belongs to the Special Issue Applications of Ceramic and Cermet Coatings)
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