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Special Issue "Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics"

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

Deadline for manuscript submissions: 31 August 2023 | Viewed by 7909

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Special Issue Editors

Dr. Wuyi Ming

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Guest Editor

Department of Electromechanical Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Interests: coatings; EDM; WEDM; glass molding process; microstructure; deep learning

Dr. Kun Liu

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Guest Editor

Department of Electromechanical Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Interests: advanced coating technology; thermal spraying; coatings; heat treatment with a laser beam; CVD

Dr. Zhen Zhang

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Guest Editor

School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: EDM; WEDM; laser micro machining; complex physical filed assisted machining; glass molding process
Special Issues, Collections and Topics in MDPI journals

Dr. Qing Zhou

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Guest Editor

State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an 710072, China
Interests: metallic glasses; high entropy materials; advanced film technology; tribology; simulation

Special Issue Information

Dear Colleagues,

Functional coating materials are a kind of material prepared by changing the chemical composition or organizational structure of the substrate surface through chemical and physical methods. This can replace the properties of the coated surface and make it have a special function. According to the action principle or performance, it can be divided into electrical functions (such as conductive coating, insulating coating, anti-static coating, radio wave absorption coating, etc.); magnetic functions (such as magnetic coating); light functions (such as luminescent coating, fluorescent coating, phosphorescent coating, camouflage coating, wave selective absorption coating, etc.); sound wave functions (such as damping coating); mechanical physical functions (such as thick film coating, lubricating coating, anti-slip coating, anti-condensation coating, anti-icing coating, atomic ash, etc.); thermal functions (such as heat-resistant coating, fireproof coating, temperature indicating coating, ablation coating, heat reflection coating ,etc.); among others. These materials have various new characteristics, such as conductivity, heat conduction, insulation, flame retardant, shading, antibacterial, acid and alkali resistance, blue light resistance, fingerprint resistance, dizziness resistance, scratch resistance, static electricity resistance, oil pollution prevention, and so on. Therefore, they are widely used in various industrial systems, including aerospace, automobile manufacturing, medical devices, and other fields.

Dr. Wuyi Ming
Dr. Kun Liu
Dr. Zhen Zhang
Dr. Qing Zhou
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 2200 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

chemical and physical methods
plasma spraying fabricating
laser
ECM
EDM/WEDM
ultrasonic machining
electron beam
magnetron sputtering
lubricant films

Published Papers (6 papers)

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Research

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Open AccessArticle

Enterosorbents Based on Rhubarb Biomass with a Hybrid Polymer-Inorganic Coating for the Immobilization of Azaheterocyclic Mycotoxins

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Coatings 2023, 13(4), 684; https://doi.org/10.3390/coatings13040684 - 27 Mar 2023

Viewed by 386

Abstract

The aim of the study was the improvement of the phytosorbent range to solve the actual problems of preventing mycotoxicosis caused by numerous types of azaheterocyclic mycotoxins. Technological approaches to structural released pectin and to the formation of a surface layer that was capable of adhesive interaction with montmorillonite particles was identified. The increase in the material porosity and the formation of a hybrid polymer-inorganic coating on a cellulose matrix surface were revealed by scanning electron microscopy and gas adsorption. The modification of rhubarb biomass increased sorption capacity in comparison with the raw material seven-fold. The properties of rhubarb pectin and a hybrid composite based on it were investigated using FTIR spectroscopy, viscometry, laser diffraction and X-ray diffraction analysis. The results were compared with the characteristics of commercial citrus pectin. Models of the molecular structure of the polymer chain and the spatial interaction between macromolecules in the structure of the sorbing grain were proposed based on the pectin chemical state. The influence of the pectin structural organization on the kinetic parameters of the pH-regulated sorption of the test alkaloid under conditions simulating the functioning of the human digestive organs and those of farm animals was traced. The results of the studies allow prognoses on the sorption binding of alkaloids and determinations of the dosage of pectin-containing phytopreparations for mycotoxicos prevention. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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Open AccessArticle

Preparation and Tribological Properties of Graphene-Based Coatings on Tungsten Carbide

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Coatings 2022, 12(10), 1385; https://doi.org/10.3390/coatings12101385 - 22 Sep 2022

Cited by 2 | Viewed by 806

Abstract

The preparation technology of graphene-based coatings on cobalt-based cemented carbides and the friction properties of graphene-based coatings were researched. Based on cooling rate, growth temperature, and methane flow rate, Raman spectroscopy was used to evaluate the influence of chemical vapor deposition (CVD) on graphene-based coatings. The results show that at the growth temperature of 1000 °C, the cooling rate of 15 °C/min and methane flow rate of 10 sccm are more favorable for the growth of pure graphene coating with fewer layers on a cemented carbide surface. As methane flow boosts, the number of graphene layers increases and amorphous carbon is generated. The resulting tribological properties demonstrate that the friction coefficient of graphene-based coatings decreases as the friction load increases. The above results indicate that the graphene-based coating on a cemented carbide surface can be prepared by regulating its composition and defects through technological parameters, and it is viable to use graphene-based coating as anti-wear coating for cutting tools. The results provide a reference for the preparation and properties of cemented carbide surface graphene. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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Review

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Open AccessReview

Review of Research Progress in Nontraditional Machining of Ultrahigh-Temperature Ceramic Matrix Composites

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Coatings 2023, 13(1), 187; https://doi.org/10.3390/coatings13010187 - 14 Jan 2023

Viewed by 1013

Abstract

Ultrahigh-temperature ceramic matrix composites are currently among the most promising high-temperature-resistant materials, owing to their high-temperature strength, high-toughness and excellent corrosion resistance; they are widely used in national defense and aerospace fields. However, it is a difficult material to machine, and high precision is difficult to achieve using traditional machining methods. Nontraditional machining methods are not constrained by material physical and mechanical properties, and good surface quality is easily obtained, which is an important direction in the field of ultrahigh-temperature ceramic matrix composites. This paper summarizes the recent nontraditional machining methods utilized in the fabrication of ultrahigh-temperature ceramic matrix composites. Firstly, various nontraditional machining methods for ultrahigh-temperature ceramic matrix composites based on borides, carbides and nitrides are reviewed, and the machining performances under different machining conditions are compared. Subsequently, the problems and challenges of ultrahigh-temperature ceramic matrix composite nontraditional machining are summarized and discussed. Lastly, the future development path of nontraditional machining methods for ultrahigh-temperature ceramic matrix composites is summarized and predicted. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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Open AccessReview

Recent Advances in Superhydrophobic and Antibacterial Coatings for Biomedical Materials

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Coatings 2022, 12(10), 1469; https://doi.org/10.3390/coatings12101469 - 05 Oct 2022

Cited by 3 | Viewed by 1749

Abstract

In recent years, biomedical materials have been used in the response to the emergence of medical infections that pose a serious threat to the health and life of patients. The construction of superhydrophobic coatings and antimicrobial coatings is among the most effective strategies to address this type of medical derived infection. Firstly, this paper reviews the preparation methods of superhydrophobic surface coatings and their applications; summarizes the advantages and disadvantages of superhydrophobic surface preparation schemes based on the template method, spraying methods, etching methods, and their respective improvement measures; and focuses on the applications of superhydrophobic surfaces in self-cleaning and antibacterial coatings. Then, the action mechanisms of contact antibacterial coatings, anti-adhesion bacteriostatic coatings, anti-adhesion bactericidal coatings, and intelligent antibacterial coatings are introduced, and their respective characteristics, advantages, and disadvantages are summarized. The application potential of antimicrobial coatings in the field of biomedical materials is highlighted. Finally, the applications of superhydrophobic and antimicrobial coatings in medical devices are discussed in detail, the reasons for their current difficulties in commercial application are analyzed, and the future directions of superhydrophobic coatings and antimicrobial coatings are considered. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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Open AccessFeature PaperReview

Tribological Behavior of High Entropy Alloy Coatings: A Review

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Coatings 2022, 12(10), 1428; https://doi.org/10.3390/coatings12101428 - 29 Sep 2022

Cited by 3 | Viewed by 1436

Abstract

As engineering equipment is applied in a harsh environment with a heavy load, cyclic stress, and a wide range of temperatures, the reliability of the equipment becomes a challenge, especially when wear contact is involved. Hence, the design and exploitation of an advanced alloy surface may hold the key to control and minimize friction and wear in the transmission system for safety-critical applications. High entropy alloys (HEAs) or multi-component alloys have been proved to have outstanding mechanical properties, corrosion resistance, and high-temperature oxidation resistance with potential use as wear resistance and friction reduction coatings. In this paper, the properties and development status of HEAs coating systems for tribological applications were reviewed to gain a better understanding of their advantages and limitations obtained by different preparation methods. Specifically, focus was paid to magnetron sputtering, laser cladding, and thermal spraying since these three deposition methods were more widely used in wear-resistant and friction-reducing coatings. Building upon this, the correlation between composition, mechanical properties, and friction as well as wear characteristics of these coatings are summarized. Finally, the key problems to be solved to move the field forward and the future trend of tribology application for HEA coatings are outlined. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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Open AccessReview

Review: Modeling and Simulation of Membrane Electrode Material Structure for Proton Exchange Membrane Fuel Cells

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Coatings 2022, 12(8), 1145; https://doi.org/10.3390/coatings12081145 - 09 Aug 2022

Cited by 9 | Viewed by 2004

Abstract

Hydrogen energy is recognized as the clean energy with the most development potential, and hydrogen fuel cell technology is considered the ultimate solution utilizing hydrogen energy. The proton exchange membrane fuel cell (PEMFC) has the merits of high energy efficiency, high energy density, low operating temperature, is clean, and affords environmental protection. Improving the structure of each functional layer could play a significant role in improving PEMFC performance. In addition, membrane electrode assemblies (MEAs) are the core components of a PEMFC, and their structure includes three main parts, namely, the gas diffusion layer (GDL), catalytic layer (CL), and proton exchange membrane (PEM). Therefore, this review focuses on progress in the modeling and simulation of the material structure in MEAs. First, the GDL simulation models are critically reviewed, including two-phase calculation models and microscopic simulation models. Second, CL microstructure models are comprehensively evaluated, involving power density enhancement, catalyst loading distribution, electrochemical reaction and its performance optimization. Third, the PEM simulation model, relating to molecular dynamics (MD) simulation techniques, 3D numerical techniques, and multiphysics simulation, are reviewed. Finally, the three aspects of similarity, individuality, and complementarity of these simulation models are discussed, and necessary outlooks, including the current limitations and challenges, are suggested, providing a reference for low-cost, high-performing PEMFC membrane electrodes for the future. Full article

(This article belongs to the Special Issue Preparation and Applications of Functional Inorganic Coatings, Glass, Ceramics)

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