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Advances of Ceramic and Alloy Coatings, 2nd Edition
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Advances of Ceramic and Alloy Coatings, 2nd Edition

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

Deadline for manuscript submissions: 30 November 2024 | Viewed by 5130

Special Issue Editors

Dr. Yi Yang

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
Interests: high-entropy alloy; corrosion of alloy; coatings; electron microscopy
Special Issues, Collections and Topics in MDPI journals
Dr. Fugang Qi

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
Interests: magnesium; microstructure; corrosion properties; surface coating
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the development of modern technology, advanced ceramics, alloys and their coatings have gradually become important parts of new materials, as well as key materials in the development of many high-tech fields. They have received a great deal of attention from researchers in various industrially developed countries. Advanced ceramics and alloys, which have specific fine structures and many excellent properties (e.g., high strength, high hardness, wear resistance, corrosion resistance, high temperature resistance, etc.), are widely used in various fields, such as national defense, chemical industry, metallurgy, electronics, machinery, aviation, aerospace, biomedicines, etc.

This Special Issue will serve as a forum compiling papers in the following areas:

  1. Theoretical and experimental research, knowledge, and new ideas related to corrosion-protective and -preventive coating mechanisms of ceramic and alloy coatings;
  2. Ion beam modification of metal material surfaces;
  3. Coatings produced through different processes, including, but not limited to, additive manufacturing processeing, laser and plasma processing, thermal spray, CVD, electrodeposition, etc.;
  4. Thermal barrier coating materials, coating preparation and high-temperature corrosion resistance mechanisms;
  5. Applications in high-temperature engineering and corrosion-resistant materials.

Dr. Yi Yang
Dr. Fugang Qi
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

  • high-entroy alloy
  • coatings
  • corrosion
  • alloy design
  • ceramic

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

Related Special Issue

Published Papers (6 papers)

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Research

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15 pages, 6436 KiB  
Article
Effect of Sintering Process on Microstructure and Properties of (Zr0.2Ta0.2Ti0.2Cr0.2Hf0.2)Si2 High-Entropy Silicide Ceramics
by Zihao Zhang, Huaigan Yi, Mengtian Liang, Linying Xie, Bingbing Yin and Yi Yang
Coatings 2024, 14(10), 1280; https://doi.org/10.3390/coatings14101280 - 8 Oct 2024
Viewed by 796
Abstract
In this study, five kinds of (Zr0.2Ta0.2Ti0.2Cr0.2Hf0.2)Si2 high-entropy ceramics were prepared by a two-step method under different vacuum pressureless pre-sintering processes, and the microstructures and mechanical properties of the ceramics under different [...] Read more.
In this study, five kinds of (Zr0.2Ta0.2Ti0.2Cr0.2Hf0.2)Si2 high-entropy ceramics were prepared by a two-step method under different vacuum pressureless pre-sintering processes, and the microstructures and mechanical properties of the ceramics under different parameters of the pre-sintering process were systematically discussed. The results show that the physical structure of the ceramic samples remains basically unchanged by changing the pre-sintering conditions; the longer the holding time of the initial pre-sintering, the higher the densification of the samples and all of them are above 95%. The hardness of the ceramics was around 10 GPa, with the best hardness of 10.11 GPa at 1300 °C for 3 h. This conclusion provides data support for the optimization of the high-entropy ceramics preparation process. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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6 pages, 4555 KiB  
Communication
Study on the Refining Behavior of Al-Si Alloys Doped with Al-Ti-C Intermediate Alloys at Different B Doping Temperatures
by Xiaodong Liu, Mengtian Liang, Bingbing Yin, Chuanlong Yang, Yuhao Li and Yi Yang
Coatings 2024, 14(9), 1102; https://doi.org/10.3390/coatings14091102 - 1 Sep 2024
Viewed by 466
Abstract
In this paper, a novel Al-5Ti-0.3C-0.2B intermediate alloy with an efficient refining effect on Al-Si alloys by a low-cost and high-performance fabrication process is developed. The results show that the addition of only 0.15 wt.% of Al-5Ti-0.3C-0.2B intermediate alloy is able to refine [...] Read more.
In this paper, a novel Al-5Ti-0.3C-0.2B intermediate alloy with an efficient refining effect on Al-Si alloys by a low-cost and high-performance fabrication process is developed. The results show that the addition of only 0.15 wt.% of Al-5Ti-0.3C-0.2B intermediate alloy is able to refine the average grain size of Al-Si alloys to 120 ± 5 μm, which is 28.7% higher than the reference value of 0.2 wt.% addition. Additionally, TiAl3 in bulk form has a faster response and more stable refinement than TiAl3 in needle form. The blocky TiAl3 generated at low temperature will turn acicular or elongated as the temperature increases, slowing the response speed and increasing the time required to achieve the ideal refinement effect. We are convinced that this work will provide a reference for developing new aluminum alloy refinement intermediate alloys. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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13 pages, 8516 KiB  
Article
Effect of Arc Current on the Microstructure of AlTiN-Coated Tools and Milling of 304 Stainless Steel
by Simin Zou, Zixiang Luo, Yingxin Li, Liang Yuan, Yu Tang, Jialin Zhou and Huizhong Li
Coatings 2024, 14(6), 704; https://doi.org/10.3390/coatings14060704 - 4 Jun 2024
Viewed by 565
Abstract
304 stainless steel demonstrates a low thermal conductivity and work hardening characteristics, resulting in its processing, and will adhere to the tip of the tool; as well as the phenomenon of chipping, shortening the life of the tool. AlTiN coatings are representative of [...] Read more.
304 stainless steel demonstrates a low thermal conductivity and work hardening characteristics, resulting in its processing, and will adhere to the tip of the tool; as well as the phenomenon of chipping, shortening the life of the tool. AlTiN coatings are representative of coatings applied to carbide tools. In this paper, AlTiN coatings with different arc current processes were deposited on carbide milling inserts using arc ion plating. The microstructure, mechanical properties, and milling properties of the coatings were investigated by using the SEM, EDS, XRD, scratch meter, friction and wear meter, and vertical machining center. The findings revealed that all coatings displayed columnar crystal growth, free from cracks and voids. With an increasing arc current, there was a notable increase in surface droplets, pits, and coating thickness. The coating deposited at a 140 A arc current showed a pronounced (200) orientation preference. The adhesion force peaked at 56.0 N with a subsequent decline, and the friction coefficient hit its lowest point of 0.429 at 140 A, contrasting with its highest value of 0.55 at 160 A. After 39 min of dry milling, the tool with a 140 A AlTiN coating exhibited minimal wear of 0.196 mm, just below the 0.2 mm failure threshold, indicating superior performance at this arc current setting. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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13 pages, 7096 KiB  
Article
Microstructure and Biocompatibility of Graphene Oxide/BCZT Composite Ceramics via Fast Hot-Pressed Sintering
by Bingqing Zhao, Qibin Liu, Geng Tang and Dunying Wang
Coatings 2024, 14(6), 689; https://doi.org/10.3390/coatings14060689 - 1 Jun 2024
Viewed by 1032
Abstract
Improving fracture toughness, electrical conductivity, and biocompatibility has consistently presented challenges in the development of artificial bone replacement materials. This paper presents a new strategy for creating high-performance, multifunctional composite ceramic materials by doping graphene oxide (GO), which is known to induce osteoblast [...] Read more.
Improving fracture toughness, electrical conductivity, and biocompatibility has consistently presented challenges in the development of artificial bone replacement materials. This paper presents a new strategy for creating high-performance, multifunctional composite ceramic materials by doping graphene oxide (GO), which is known to induce osteoblast differentiation and enhance cell adhesion and proliferation into barium calcium zirconate titanate (BCZT) ceramics that already exhibit good mechanical properties, piezoelectric effects, and low cytotoxicity. Using fast hot-pressed sintering under vacuum conditions, (1 − x)(Ba0.85Ca0.15Zr0.1Ti0.9)O3−xGO (0.2 mol% ≤ x ≤ 0.5 mol%) composite piezoelectric ceramics were successfully synthesized. Experimental results revealed that these composite ceramics exhibited high piezoelectric properties (d33 = 18 pC/N, kp = 62%) and microhardness (173.76 HV0.5), meeting the standards for artificial bone substitutes. Furthermore, the incorporation of graphene oxide significantly reduced the water contact angle and enhanced their wettability. Cell viability tests using Cell Counting Kit-8, alkaline phosphatase staining, and DAPI staining demonstrated that the GO/BCZT composite ceramics were non-cytotoxic and effectively promoted cell proliferation and growth, indicating excellent biocompatibility. Consequently, with their superior mechanical properties, piezoelectric performance, and biocompatibility, GO/BCZT composite ceramics show extensive potential for application in bone defect repair. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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8 pages, 2822 KiB  
Article
Evolution of the Microstructure and Mechanical Properties of a Biomedical Ti-20Zr-40Ta Alloy during Aging Treatment
by Xueqing Wu, Kun Yang, Jun Cheng and Jianguo Lin
Coatings 2024, 14(5), 590; https://doi.org/10.3390/coatings14050590 - 9 May 2024
Cited by 1 | Viewed by 899
Abstract
The research focus in the field of medical titanium alloys has recently shifted towards the development of low-modulus and high-strength titanium alloys. In this study, the influence of aging temperature on the microstructure and mechanical properties of a β-type Ti-20Zr-40Ta alloy (TZT) was [...] Read more.
The research focus in the field of medical titanium alloys has recently shifted towards the development of low-modulus and high-strength titanium alloys. In this study, the influence of aging temperature on the microstructure and mechanical properties of a β-type Ti-20Zr-40Ta alloy (TZT) was investigated. It was found that the recovery and the recrystallization occurred in the as-rolled alloy depended on the aging temperature. The periodically distributed Ta-lean phase (β1) and Ta-rich phase (β2) were produced by the spinodal decomposition in all the samples aged at different temperatures. The spinodal decomposition significantly influenced the mechanical properties and deformation mechanisms of the TZT alloy. Upon aging at 650 °C and 750 °C, the as-rolled alloy exhibited a double-yield phenomenon during tensile testing, indicating a stress-induced martensitic transformation; however, its ductility was limited due to the presence of ω phases. Conversely, aging at 850 °C resulted in an alloy with high strength and good ductility, which was potentially attributed to the enhanced strength resulting from modulated structures introduced with spinodal decomposition. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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Review

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21 pages, 6832 KiB  
Review
Research Progress on Environmental Corrosion Resistance of Thermal Barrier Coatings: A Review
by Xiaoyuan Hu, Ying Xie, Faguo Li and Fucheng Yin
Coatings 2024, 14(10), 1341; https://doi.org/10.3390/coatings14101341 - 21 Oct 2024
Viewed by 745
Abstract
With the development of marine science and technology, marine construction is entering a new period of modern ocean development and utilization. The scale of marine development is expanding constantly. The lifespan of aircraft engines faces new challenges in marine environments. This paper reviews [...] Read more.
With the development of marine science and technology, marine construction is entering a new period of modern ocean development and utilization. The scale of marine development is expanding constantly. The lifespan of aircraft engines faces new challenges in marine environments. This paper reviews recent progress in the development of high-temperature coatings for aero-engines designed to resist marine atmospheric corrosion, with a focus on corrosion mechanisms, detection technologies, current research on marine atmospheric corrosion, standards for evaluating coating resistance, and novel advancements in coating materials. Full article
(This article belongs to the Special Issue Advances of Ceramic and Alloy Coatings, 2nd Edition)
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