Special Issue "Coatings and Interfaces"

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

Deadline for manuscript submissions: 31 December 2019.

Special Issue Editor

Guest Editor
Prof. Dr. Hyung-Ho Park Website E-Mail
Department of Materials Science and Engineering, Yonsei University, Republic of Korea
Interests: 1. Nanoporous Aerogel: Thermal barrier, Filter, Sound proof, Adsorber, Gas sensor, ILD of ULSI 2. Thin films: ALD, Sputtering deposition, TCO, Motts for ReRAM, High-k dielectrics 3. Nanomaterials: Nanoparticles, Nanocomposite, OLED, QLED, High-k dielectrics

Special Issue Information

Dear Colleagues,

This Special Issue focusses on the current issues and recent techniques of coatings and interfaces, including various techniques, theories, mechanisms, and applications. Coatings and interfaces engineering are used to optimize the functionality of nano-materials, and to improve the entire materials function as a whole, for improved function through the coating at interfaces. Coatings on solid surfaces have a wide field of applications, such as paints, adhesives, coated papers, automobiles, semiconductor thin films, industrial equipment, solar cells, domestic appliances, photonics, smart coatings, micro-electronics, and biomedical and photographic films. Several methods, such as sol–gel, spin coating, dip coating, physical vapor deposition, chemical vapor deposition, atomic layer depostion, and so on, have been utilised for various thin or thick films. The chosen method depends on the rheology of the coating solutions, compositions, surface functional groups, types of solid surface, desired coating thickness, and uniformity, according to the application. There has been a constant motivation for various structures, textures, and chemical compositions to help form many versatile functional hybrid materials with a low cost and high production. It is possible to vary the unique functions and properties of the materials of the film using controlled interface engineering. Therefor, the optimization of the electronic, thermal, magnetic, mechanical, chemical, and optical properties of materials can be obtained using the interface control.

The current hot topics that will be covered in this Special Issues, but are not limited to the following research areas :

  • Surface, interface, and coupling effects on the properties of the multifunctional materials.
  • Novel multi-film layered and composites films.
  • Synthesis and characterization of mutlifunctional coatings.
  • Novel interface characterization techniques.
  • Recent trends in thin film synthesis techniques.

We look forward to both original researh papers and review articles for the forementioned topics that will help in developing various novel coatings for multidisciplinary domains.

Prof. Dr. Hyung-Ho Park
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.

Keywords

  • Coatings
  • Interfacial engineering
  • Functional coatings
  • Thin films

Published Papers (3 papers)

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Research

Open AccessArticle
Microstructure and Microhardness of Ni/Al-TiB2 Composite Coatings Prepared by Cold Spraying Combined with Postannealing Treatment
Coatings 2019, 9(9), 565; https://doi.org/10.3390/coatings9090565 - 04 Sep 2019
Abstract
Ni/Al-TiB2 composite powders were deposited on the surface of 316L stainless-steel substrates by cold spraying at gas temperatures of 250 and 450 °C, respectively. Then, the as-sprayed coatings were annealed at 650 °C for 10, 20, and 30 h. The experimental results [...] Read more.
Ni/Al-TiB2 composite powders were deposited on the surface of 316L stainless-steel substrates by cold spraying at gas temperatures of 250 and 450 °C, respectively. Then, the as-sprayed coatings were annealed at 650 °C for 10, 20, and 30 h. The experimental results showed that the average porosity of as-sprayed coating dropped from about 0.68% to 0.054% as the cold spraying gas temperature increased. The contents of Ni, Al, and TiB2 in the as-sprayed coatings were different from that of the Ni/Al-TiB2 composite powders. The main phase compositions of the as-sprayed Ni/Al-TiB2 coatings were the same as those of composite powder, consisting only of pure Ni, Al, and TiB2 phases. TiB2 as a reinforced particle in the as-sprayed coating could obviously increase the microhardness of the coatings. NiAl3 and Ni2Al3 intermetallic compounds were synthesized in situ in all of the annealed coatings, and the average contents of NiAl3 and Ni2Al3 intermetallic compounds increased as the cold spraying gas temperature increased. The distribution of TiB2 particle was changed as the annealing times increased, which changed from more comparative uniform distribution to accumulation. The average porosity of the annealed coatings increased as the annealing time increased. The microhardness of Ni/Al-TiB2 coatings annealed at 650 °C for 10 h was increased remarkably due to the reinforcement role of TiB2 particles and NiAl3 and Ni2Al3 intermetallic compounds. Full article
(This article belongs to the Special Issue Coatings and Interfaces)
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Open AccessArticle
The Implication of Benzene–Ethanol Extractive on Mechanical Properties of Waterborne Coating and Wood Cell Wall by Nanoindentation
Coatings 2019, 9(7), 449; https://doi.org/10.3390/coatings9070449 - 18 Jul 2019
Abstract
The waterborne coating uses water as its solvent, which will partially dissolve wood extractives when it is applied to wood surfaces. This influences both the coating curing process and the mechanical properties of the cured coating. To investigate these influences, the mechanical properties [...] Read more.
The waterborne coating uses water as its solvent, which will partially dissolve wood extractives when it is applied to wood surfaces. This influences both the coating curing process and the mechanical properties of the cured coating. To investigate these influences, the mechanical properties of waterborne polyacrylic coating on control and extractive-free wood surfaces were investigated by nanoindentation. Reductions to elastic modulus (Er) and hardness (H) of the coating layer was observed in the wood cell walls adjacent to or away from coating layers. Extraction treatment resulted in significant decrease of the Er and H of the coating layer on extractive-free wood surface comparing with control wood, but the values slightly increased for extractive-free wood cell walls compared to a control. Er and H of coating in wood cell lumen were higher than the average value of coating layer on wood surface in both the control and extractive-free wood. The Er of wood cell wall without coating filled in lumen was significantly higher than those of filling with coating. However, there was no distinct difference of H. The Er and H of CCML in extractive-free wood were 15% and 6% lower than those in control ones, respectively. Full article
(This article belongs to the Special Issue Coatings and Interfaces)
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Open AccessArticle
A Comparative Study of Multifunctional Coatings Based on Electrospun Fibers with Incorporated ZnO Nanoparticles
Coatings 2019, 9(6), 367; https://doi.org/10.3390/coatings9060367 - 04 Jun 2019
Cited by 2
Abstract
In this work, polymeric fibers of polystyrene (PS) with incorporated ZnO nanoparticles have been deposited onto an aluminum alloy substrate (6061T6) by using the electrospinning technique. In order to optimize the deposition process, the applied voltage and flow rate have been evaluated in [...] Read more.
In this work, polymeric fibers of polystyrene (PS) with incorporated ZnO nanoparticles have been deposited onto an aluminum alloy substrate (6061T6) by using the electrospinning technique. In order to optimize the deposition process, the applied voltage and flow rate have been evaluated in order to obtain micrometric electrospun fibers with a high average roughness and superhydrophobic behavior. Thermogravimetric analysis (TGA) has also been employed in order to corroborate the amount of ZnO incorporated into the electrospun fibers, whereas differential scanning calorimetry (DSC) has been performed in order to determine the glass transition temperature (Tg) of the polymeric electrospun fibers. In addition, a specific thermal treatment (Tg + 20 °C) of the synthesized electrospun fibers has been evaluated in the resultant corrosion resistance. A comparative study with previously reported results corresponding to polyvinyl chloride (PVC) fibers is carried out along this paper to show the changes in behavior due to the different compositions and fiber diameters. The coating has produced an important reduction of the corrosion current of the aluminum substrate in two orders of magnitude, showing also an important enhancement against pitting corrosion resistance. Finally, this deposition technique can be used as an innovative way for the design of both superhydrophobic and anticorrosive surfaces in one unique step over metallic substrates with arbitrary geometry. Full article
(This article belongs to the Special Issue Coatings and Interfaces)
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