Special Issue "Advanced Hybrid Coatings and Thin Films for Surface Functionalization"

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: 31 October 2019.

Special Issue Editor

Guest Editor
Prof. Dr. Flavio Deflorian Website E-Mail
Department of Industrial Engineering, University of Trento, Trento, Italy
Phone: +39-0461-882437
Interests: multifunctional coatings; self-healing; nanotechnology; environmentally friendly coatings; hybrid coatings

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on "Advanced Hybrid Coatings and Thin Films for Surface Functionalization" in journal Coatings. Many technologically advanced materials and components are characterized by surfaces with special coatings. The role of the coatings is not only the traditional one (protection and aesthetics), but in addition new advanced functions are required, like special mechanical, chemical, electrical, and optical functions. A wide range of coating technologies offer the possibility to produce advanced and selected surface properties, such as hydrophobic or hydrophilic coatings, non-stick and easy-to-clean coatings, anti-freeze or anti-fogging coatings, scratch-resistant coatings, and anti-microbial coatings, etc. In particular, organic–inorganic hybrid coatings are very promising materials for new coatings functionalization and applications in many different industrial fields.

The aim of this Special Issue is to publish original research articles, critical reviews, as well as perspectives, from leading researchers in both academia and industry, on all aspects related to the recent advances in the design, synthesis, and development of hybrid coatings/thin films, and their applications for surface functionalization. The contributions on the new concepts, mechanisms, and the potential impact and challenge of hybrid thin films and coatings are also welcome.

In particular, the topic of interest includes, but is not limited to:

  • New chemical ways for the production of thin hybrid coatings;
  • Advanced multifunctional thin coatings;
  • Novel thin films for surface functionalization;
  • New methods for the characterization of hybrid coatings for surface functionalization;
  • Advanced industrial applications of hybrid coatings for surface functionalization.

Prof. Dr. Flavio Deflorian
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 papers will be 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 1600 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.

Published Papers (2 papers)

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Research

Open AccessFeature PaperArticle
Protection of Aluminum Alloy 3003 in Sodium Chloride and Simulated Acid Rain Solutions by Commercial Conversion Coatings Containing Zr and Cr
Coatings 2019, 9(9), 563; https://doi.org/10.3390/coatings9090563 - 03 Sep 2019
Abstract
The morphology, composition and corrosion properties of commercial hexafluoro-zirconate trivalent chromium coatings (SurTec® 650) deposited on chemically cleaned aluminum alloy 3003 were studied. The coatings were deposited at room temperature using different concentrations of SurTec® 650 (10, 25 and 50 vol.%) [...] Read more.
The morphology, composition and corrosion properties of commercial hexafluoro-zirconate trivalent chromium coatings (SurTec® 650) deposited on chemically cleaned aluminum alloy 3003 were studied. The coatings were deposited at room temperature using different concentrations of SurTec® 650 (10, 25 and 50 vol.%) and different conversion times (90 s, 11 min and 18 min). Scanning electron microscopy with energy dispersive X-ray spectrometry, X-ray photoelectron spectroscopy and time-of-flight secondary ion spectrometry were employed to investigate the surface morphology, composition and thickness of uncoated and coated AA3003 samples. The morphology of the coating varied from uniform nodular to non-uniform and cracked; coatings were deposited at intermetallic particles and at the alloy matrix. The main constituents of conversion coatings were Zr(IV) and Cr(III) oxides; in addition to oxides, fluorides were also formed. The corrosion properties were investigated in two solutions: more aggressive sodium NaCl and less aggressive simulated acid rain. These commercial conversion coatings exhibited a good corrosion resistance but only after longer immersion in solution, i.e., 24 h. The results reveal an interesting behavior of zirconate-based coatings on aluminum-manganese alloy. Full article
(This article belongs to the Special Issue Advanced Hybrid Coatings and Thin Films for Surface Functionalization)
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Open AccessArticle
Layered Double Hydroxide Clusters as Precursors of Novel Multifunctional Layers: A Bottom-Up Approach
Coatings 2019, 9(5), 328; https://doi.org/10.3390/coatings9050328 - 21 May 2019
Cited by 1
Abstract
The specific microstructure of aluminum alloys is herein explored to grow spatially-resolved layered double hydroxide (SR-LDH) clusters on their surface. Upon chemical modification of LDHs via intercalation, adsorption and grafting with different functional molecules, novel surface-engineered surfaces were obtained. Crystal structure and phase [...] Read more.
The specific microstructure of aluminum alloys is herein explored to grow spatially-resolved layered double hydroxide (SR-LDH) clusters on their surface. Upon chemical modification of LDHs via intercalation, adsorption and grafting with different functional molecules, novel surface-engineered surfaces were obtained. Crystal structure and phase composition were analyzed by X-ray diffraction (XRD) and surface morphology was observed by scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) and glow discharge optical emission spectrometry (GDOES) were used to correlate structural changes upon ion-exchange and interfacial modifications with chemical composition and surface profiles of the SR-LDH films, respectively. The protection conferred by these films against localized corrosion was investigated at microscale using the scanning vibrating electrode technique (SVET). LDH-NO3 phase was obtained by direct growth onto AA2024 surface, as evidenced by (003) and (006) XRD diffraction reflections. After anion exchange of nitrate with 2-mercaptobenzothiazole (MBT) there was a decrease in the SR-LDH thickness inferred from GDOES profiles. The subsequent surface functionalization with HTMS was confirmed by the presence of Si signal in XPS and GDOES analyses, leading to an increase in the water contact angle (c.a 144° ± 3°). SVET measurements of the SR-LDH films revealed exceptional corrosion resistance, whereas the bioluminescent bacteria assay proved the anti-microbial character of the obtained films. Overall the results obtained show an effective corrosion protection of the SR-LDHs when compared to the bare substrate and the potential of these films for biofouling applications as new Cr-free pre-treatments. Full article
(This article belongs to the Special Issue Advanced Hybrid Coatings and Thin Films for Surface Functionalization)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Authors: Flavio Deflorian et al.
Title:
Characterization of polysilazane derived hybrid coatings for the corrosion protection of mild steel in chloride solution

Authors: Ingrid Milošev et al.
Title:
Study of Conversion coating based on trivalent chromium and zirconium deposited on aluminium alloy 3003

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