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Ceramic and Glass Material Coatings
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Ceramic and Glass Material 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: 31 May 2025 | Viewed by 1418

Special Issue Editors

Prof. Dr. Manuel Miguel Jordan-Vidal

E-Mail Website
Guest Editor
Department of Agrochemistry and Environment, University Miguel Hernández of Elche, 03202 Elche, Spain
Interests: waste management; composting; soil remediation; clay minerals; applied mineralogy; ceramics; air quality; environment; soil science; ceramic clays; clay mineralogy; organic matter; clay; mineralogy; ceramic processing; silicate; ceramic materials; heavy metals; X-ray diffraction
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. María Belén Almendro-Candel

E-Mail Website
Guest Editor
Department of Agrochemistry and Environment, University Miguel Hernández of Elche, 03202 Elche, Spain
Interests: waste management; soil pollution; environmental pollution; heavy metals; water pollution; waste valorization; circular economy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The journal Coatings publishes scientific articles and communications describing original research and reviews. Now, this international journal is launching a Special Issue relating to ceramic material and glass coatings. The goal of this Special Issue and the main interest is to publish articles on novel science and technology establishing the relationships between composition, mineralogy, microstructure, synthesis, processing and properties of ceramic coatings. Papers may deal with the following topics related to ceramics and glasses: raw materials, wastes, mineralogy, structural, functional, traditional ceramics, composites and cultural heritage.

You may choose our Joint Special Issue in Ceramics.

Prof. Dr. Manuel Miguel Jordan-Vidal
Prof. Dr. María Belén Almendro-Candel
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 raw materials
  • mineralogy
  • microstructure
  • traditional ceramics
  • properties and processing
  • composites
  • cultural heritage

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (4 papers)

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Research

13 pages, 5403 KiB  
Article
First-Principles Analysis of Phase Stability and Transformation Suppression for Hydrogen-Doped Alumina
by Kun Lv, Shiyang Sun, Bo Yuan, Xiaofeng Guo, Weiao Song and Andrei A. Boiko
Coatings 2025, 15(5), 545; https://doi.org/10.3390/coatings15050545 (registering DOI) - 2 May 2025
Abstract
Thermally grown oxide (TGO) layers—primarily alumina (Al2O3)—provide oxidation resistance and high-temperature protection for thermal barrier coatings. However, during their service in humid and hot environments, water vapor accelerates TGO degradation by stabilizing metastable alumina phases (e.g., θ-Al2O [...] Read more.
Thermally grown oxide (TGO) layers—primarily alumina (Al2O3)—provide oxidation resistance and high-temperature protection for thermal barrier coatings. However, during their service in humid and hot environments, water vapor accelerates TGO degradation by stabilizing metastable alumina phases (e.g., θ-Al2O3) and inhibiting their transformation to the thermodynamically stable α-Al2O3, a phenomenon which has been shown in numerous experimental studies. However, the microscopic mechanisms by which water vapor affects the phase stability and transformation of alumina remain unresolved. This study employs first-principles calculations to investigate hydrogen’s role in altering vacancy formation, aggregation, and atomic migration in θ- and α-Al2O3. The results reveal that hydrogen incorporation reduces the formation energies for aluminum and oxygen vacancies by up to 40%, promoting defect generation and clustering; increases aluminum migration barriers by 25–30% while lowering oxygen migration barriers by 15–20%, creating asymmetric diffusion kinetics; and stabilizes oxygen-deficient sublattices, disrupting the structural reorganization required for θ- to α-Al2O3 transitions. These effects collectively sustain metastable θ-Al2O3 growth and delay phase stabilization. By linking hydrogen-induced defect dynamics to macroscopic coating degradation, this work provides atomic-scale insights for designing moisture-resistant thermal barrier coatings through the targeted inhibition of vacancy-mediated pathways. Full article
(This article belongs to the Special Issue Ceramic and Glass Material Coatings)
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19 pages, 10296 KiB  
Article
Microstructure and Thermal Analysis Kinetics of Y2Hf2O7/Y3Al5O12 Composites Prepared by Solution Combustion Synthesis
by Rui Li, Shengyue Gu, Yimin Guo, Bei Xue, Qian Zhou, Ruimei Yuan, Longkang Cong and Yaming Zhang
Coatings 2025, 15(4), 470; https://doi.org/10.3390/coatings15040470 - 15 Apr 2025
Viewed by 183
Abstract
With the development of high-speed and high-temperature equipment, thermal barrier materials are facing increasingly harsh service environments. The addition of YAG to Y2Hf2O7 has been proposed in order to improve its long-term high-temperature performance. In this work, Y [...] Read more.
With the development of high-speed and high-temperature equipment, thermal barrier materials are facing increasingly harsh service environments. The addition of YAG to Y2Hf2O7 has been proposed in order to improve its long-term high-temperature performance. In this work, Y2Hf2O7/Y3Al5O12 composite powders were synthesized by combustion synthesis with urea, glycine, EDTA, citric acid, and glucose as fuels, while hafnium tetrachloride, yttrium nitrate hexahydrate, and aluminum nitrate nonahydrate were used as raw materials. The effects of fuels on the morphology and phase composition of synthetic powders were studied. Chemical reaction kinetic parameters were established by the Kissinger, Augis and Bennett, and Mahadevan methods. Y2Hf2O7 and Y3Al5O12 are the main components in the powders synthesized with urea as fuel, while YAlO3 and Y2Hf2O7 are the main phases with the other fuels. SEM and TEM analysis reveal that the powders prepared by the solution combustion method exhibit a typical porous morphology. When urea is used as fuel, the powders show a uniform elemental distribution, distinct ceramic grain crystallization, clear grain boundaries, and a uniform distribution of alternating grains. Compared to several other fuels, urea is more suitable for the preparation of Y2Hf2O7/Y3Al5O12 composite powders. In the process of preparing powders with urea, the activation energies for the combustion reaction calculated using the three methods are 100.579, 104.864, and 109.148 kJ·mol−1, while the activation energies related to crystal formation are 120.397, 125.001, and 129.600 kJ·mol−1, respectively. Full article
(This article belongs to the Special Issue Ceramic and Glass Material Coatings)
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15 pages, 3380 KiB  
Article
Study on the Effect of Coal Gangue Particle Size Distribution for the Preparation of Kaolin by Shaking Table Separation
by Xinkai Hou, Wenjuan Ji, Hao Li, Xiaoqi Fan and Ying Wang
Coatings 2025, 15(4), 430; https://doi.org/10.3390/coatings15040430 - 6 Apr 2025
Viewed by 312
Abstract
The presence of pyrite in coal gangue significantly degrades the performance of its prepared kaolin in ceramic and coating applications. Implementing separation techniques to remove pyrite can markedly enhance the quality of kaolin products. However, there is no research on the effect of [...] Read more.
The presence of pyrite in coal gangue significantly degrades the performance of its prepared kaolin in ceramic and coating applications. Implementing separation techniques to remove pyrite can markedly enhance the quality of kaolin products. However, there is no research on the effect of material particle size distribution on the separation effect in the current study on shaking table separation. For this reason, the coal gangue was crushed to different maximum particle sizes in this study, and its particle size distribution was fitted and analyzed. Based on the fitting results, the Rosin–Rammler–Sperling–Bennet (RRSB) distribution with a uniformity coefficient n of 0.74 was used to study the influence of the characteristic particle size de on the separation effect. Fuller distribution with distribution modulus q of 0.45 was also used to study the impact of maximum particle size dmax. The results showed that the Fuller distribution reduced the contents of SO3 and Fe2O3 by 30.85% and 25.71%, respectively, compared with the raw materials. In comparison, the RRSB distribution reduced the contents of SO3 and Fe2O3 by 41.01% and 30.85%, respectively, indicating that the separation effect of the RRSB distribution was better than that of the Fuller distribution. In addition, when the characteristic particle size de of the RRSB distribution was 37–42 μm, the content of SO3 and Fe2O3 in the tailings varied very little, and the separation effect was stable. This study demonstrates that the particle size distribution significantly influences the separation efficiency of the shaking table, providing a novel idea for enhancing shaking table separation processes. Future studies may further explore the effect of another parameter or two-parameter coupling of RRSB distribution and Fuller distribution on the separation effect of the shaking table. Full article
(This article belongs to the Special Issue Ceramic and Glass Material Coatings)
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14 pages, 5149 KiB  
Article
Low-Friction Coatings Grown on Cemented Carbides by Modulating the Sputtering Process Parameters of TiN Targets
by Hu Qiao, Minghui Liu, Ying Xiang, Xiling Xu, Ze Wang, Wenxuan Wu and Youqing Wang
Coatings 2025, 15(3), 329; https://doi.org/10.3390/coatings15030329 - 13 Mar 2025
Viewed by 495
Abstract
TiN thin films are widely used as protective and decorative coatings for tools in industry. Previous studies have focused on the deposition of TiN coatings on substrates by reactive magnetron sputtering, whereas the use of TiN targets avoids problems such as ‘nitrogen contamination’ [...] Read more.
TiN thin films are widely used as protective and decorative coatings for tools in industry. Previous studies have focused on the deposition of TiN coatings on substrates by reactive magnetron sputtering, whereas the use of TiN targets avoids problems such as ‘nitrogen contamination’ and ‘target poisoning’. TiN coatings were grown on silicon wafers and cemented carbide substrates by varying the parameters of the magnetron sputtering plasma source, operating Ar pressure and deposition temperature. The experimental results show the better mechanical properties of ceramic materials deposited using radio frequency (RF) magnetron sputtering. During RF magnetron sputtering, the hardness of the coating increased significantly to 17 Gpa when the deposition working pressure was reduced from 1.5 Pa to 0.5 Pa. The coefficient of friction tends to decrease as the deposition temperature increases, and at 400 °C the coefficient of friction between the deposited film and the friction pair made of Al2O3 material is only 0.36. The nano-scratch experimental tests concluded that the TiN coatings deposited at 300 °C conditions had the best adhesion to the substrate at an Ar pressure of 0.5 Pa under an RF source. Full article
(This article belongs to the Special Issue Ceramic and Glass Material Coatings)
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