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Crystals
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New Insights into Coating Materials: From Fundamentals to Material Performance
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New Insights into Coating Materials: From Fundamentals to Material Performance

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: 10 November 2025 | Viewed by 1788

Special Issue Editor

Prof. Dr. Haibin Zhang

E-Mail Website
Guest Editor
School of Smart Energy, Shanghai Jiao Tong University, Shanghai 200030, China
Interests: ceramics; coatings; electrochemical; oxidation behavior
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Coating materials are substances applied as a thin layer to the surface of an object to provide protection, decoration or specific functional properties. At present, in order to make materials better adapt to a variety of complex and extreme environments (such as high temperature, oxidation erosion, hot salt mixture corrosion and even radiation), make up for the current technical shortcomings and main needs, and formulate feasible strategies to improve wear resistance, the oxidation resistance, corrosion resistance and mechanical properties of materials are necessary.

This Special Issue is devoted to research on the surface properties of materials, the oxidation mechanism and oxidation behavior of surface coatings, the principles and methods of damage protection of materials in complex extreme environments, and more advanced processing and manufacturing technology, as well as the theory and application of surface interface performance control.

Therefore, we are inviting the submission of full-length original articles and reviews to this Special Issue, aiming to cover the scientific knowledge in this area and discuss the topics of interest.

Prof. Dr. Haibin Zhang
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. Crystals 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 2100 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

  • coatings
  • coating materials
  • ceramic coatings
  • oxidation resistance
  • oxidation-protective coating
  • anti-corrosion coatings
  • metal surface properties
  • metal surface engineering
  • metal damage protection
  • surface modification
  • surface technology
  • wear-resistant
  • corrosion protection coating
  • composite coating
  • microstructure and performance
  • hardness
  • mechanical properties

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Published Papers (2 papers)

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Research

17 pages, 5661 KiB  
Article
Electrophoretic Co-Deposition of Chitosan and Cu-Doped Bioactive Glass 45S5 Composite Coatings on AISI 316L Stainless Steel Substrate for Biomedical Applications
by Sayed Mohammad Reza Mahmoudabadi, Abbas Bahrami, Mohammad Saeid Abbasi, Mojtaba Rajabinezhad, Benyamin Fadaei Ardestani and Farnaz Heidari Laybidi
Crystals 2025, 15(6), 549; https://doi.org/10.3390/cryst15060549 - 8 Jun 2025
Viewed by 1020
Abstract
The growing demands for highly functional biomedical implants necessitate introducing innovative and easy-to-apply surface functionalization techniques, especially when it comes to stainless steel substrates. This study investigated the co-deposition of chitosan and Cu-doped bioactive glass on AISI 316L steel surfaces, with the latter [...] Read more.
The growing demands for highly functional biomedical implants necessitate introducing innovative and easy-to-apply surface functionalization techniques, especially when it comes to stainless steel substrates. This study investigated the co-deposition of chitosan and Cu-doped bioactive glass on AISI 316L steel surfaces, with the latter providing a matrix in which fine bioactive glass powders are distributed. Cu-doping into the matrix of bioactive glass was conducted to assess its influence on the bioactivity, antibacterial properties, and structural integrity of the coating. The microstructure, mechanical properties, phase composition, and surface roughness of coated specimens were investigated through a scanning electron microscope (SEM), X-ray diffraction analysis (XRD), energy-dispersive X-ray spectroscopy (EDS), inductively coupled plasma (ICP), contact angles, adhesion tensile tests, and laser profilometry analyses. Results of adhesion tests indicated that Cu addition did not have a major implication for the mechanical properties of the coating layers. Results also revealed that the Cu-doped bioactive glass featured a hydrophilic and a rather uneven surface, both being upsides for biomedical properties. The cytotoxicity and antibacterial assessments showed promising cell viability and antibacterial properties of the deposited coatings. Full article
(This article belongs to the Special Issue New Insights into Coating Materials: From Fundamentals to Material Performance)
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13 pages, 8038 KiB  
Article
Investigation of In Vitro Corrosion and Wear Properties of Biomedical Coatings Applied to Ti6Al4V Alloy Manufactured by Selective Laser Melting
by Ali İhsan Bahçepinar and İbrahim Aydin
Crystals 2025, 15(4), 316; https://doi.org/10.3390/cryst15040316 - 27 Mar 2025
Viewed by 466
Abstract
This study focuses on enhancing the biomedical performance of PBF-LB Ti6Al4V, produced using Selective Laser Melting (SLM), an advanced manufacturing technology widely used for patient-specific medical devices and implants. Hydroxyapatite (HA), titanium (Ti), and bilayer Ti/HA coatings were applied, using the powder flame [...] Read more.
This study focuses on enhancing the biomedical performance of PBF-LB Ti6Al4V, produced using Selective Laser Melting (SLM), an advanced manufacturing technology widely used for patient-specific medical devices and implants. Hydroxyapatite (HA), titanium (Ti), and bilayer Ti/HA coatings were applied, using the powder flame spray coating technique. A comprehensive analysis was conducted to examine the microstructural, chemical, and mechanical properties of the coatings. Surface analysis was performed using a scanning electron microscope (SEM), chemical composition was determined by energy-dispersive spectroscopy (EDS), crystal structure was analyzed via X-ray diffraction (XRD), and surface roughness was evaluated through topographic analyses. Additionally, in vitro wear and corrosion resistance tests, crucial for biomedical applications, were conducted. In wear tests, HA coatings exhibited the lowest wear resistance with the highest wear rate (73.83 × 10−3 mm3/N·m), while Ti coatings showed the highest wear resistance (6.32 × 10−3 mm3/N·m), and Ti/HA coatings demonstrated an intermediate performance (34.22 × 10−3 mm3/N·m). Corrosion tests revealed that bilayer Ti/HA coatings provided the best protection (0.00009 mm/year), followed by Ti coatings (0.0002 mm/year) and HA coatings (0.003 mm/year). The results indicate that Ti/HA coatings offer the most suitable biomedical performance. Full article
(This article belongs to the Special Issue New Insights into Coating Materials: From Fundamentals to Material Performance)
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