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Preparation and Characterization of Nanocomposite Coatings of Materials
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Preparation and Characterization of Nanocomposite Coatings of Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 September 2023) | Viewed by 996

Special Issue Editor

Dr. Shuaijun Pan

E-Mail Website
Guest Editor
Department of Chemical Enigneeirng, University of Melbourne, Parkville 3010, Australia
Interests: droplet bouncing; metal–organic networks; molecular dynamics; repellent coatings; self-assembly; supramolecular chemistry; surfaces and interfaces

Special Issue Information

Dear Colleagues,

Coating materials are a class of materials or composites useful in a broad range of applications, which play an integral role in modern industrial and surface engineering practices. The main purpose of coatings is surface reinforcement, from mechanical, chemical, and/or performance aspects. For structural materials, an anticorrosive coating is usually required while maintaining their mechanical performance. For the surface engineering of small objects such as nanoparticles, interfacial selectivity is usually targeted via the use of nanocomposite coatings.

The development of advanced coatings, therefore, requires in-depth understandings of the interplay between microstructures and macroscopic properties, including their long-term performance when subjected to relevant surrounding environments. The terminal applications of nanocomposite coatings exist in diverse fields, such as advanced manufacturing, chemical engineering, nanomedicine, catalysis and energy conversions, oil–water separations, and self-cleaning.

This Special Issue will compile recent developments in the field of nanocomposite coating materials. Articles included in this Special Issue will cover various interesting topics in the realm of nanocomposite coatings and its interdisciplinary fields, such as preparation strategies and pathways, understanding of interfacial adhesion and cohesion mechanisms, systematic characterization techniques, the interplay of individual components within the coating composite, instrumental techniques, molecular dynamics, perspectives, and accurate tunning of surface properties.

Dr. Shuaijun Pan
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. Materials is an international peer-reviewed open access semimonthly 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

  • metal–organic frameworks
  • nanocomposite coatings
  • superstructures
  • surface engineering
  • thin films

Published Papers (1 paper)

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Research

22 pages, 16394 KiB  
Article
Influence of Dispersed Phase Content on the Mechanical Properties of Electroless Nanocomposite Ni-P/Si3N4 and Hybrid Ni-P/Si3N4/Graphite Layers Deposited on the AW-7075 Alloy
by Kazimierz Czapczyk, Paweł Zawadzki and Natalia Wierzbicka
Materials 2023, 16(18), 6100; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16186100 - 06 Sep 2023
Viewed by 666
Abstract
The article presents the results of mechanical testing of Ni-P/Si3N4 nanocomposite and hybrid Ni-P/Si3N4/graphite coatings deposited on AW-7075 aluminum alloy using the chemical reduction method. In terms of mechanical testing, microhardness was measured, and surface roughness [...] Read more.
The article presents the results of mechanical testing of Ni-P/Si3N4 nanocomposite and hybrid Ni-P/Si3N4/graphite coatings deposited on AW-7075 aluminum alloy using the chemical reduction method. In terms of mechanical testing, microhardness was measured, and surface roughness and adhesion of the coatings to the aluminum substrate were determined using the “scratch test” method. The surface morphology of the deposited layers was also analyzed using light microscopy and scanning electron microscopy. Samples made of AW-7075 aluminum alloy with electroless deposited Ni-P/Si3N4 nanocomposite, Ni-P/graphite composite and hybrid Ni-P/Si3N4/graphite coatings with different content of dispersed phases were tested, and also, for comparison purposes, the Ni-P layer that constituted the matrix of the tested materials. Reinforcing phases in the form of silicon nitride nanoparticles and graphite particles were used in the layers. The purpose of the research was a thorough characterization of the coating materials used on aluminum alloys in terms of mechanical properties. Graphite is considered in this paper as it enables the reduction of the coefficient of friction through its lubricating properties. Unfortunately, graphite is difficult to use in selected layers as the only dispersion phase, because it has much lower hardness than the Ni-P coating. For this reason, a layer with a single dispersion phase in the form of graphite will be characterized by worse mechanical properties. It is necessary to add particles or nanoparticles with hardness higher than the base Ni-P coating, e.g., Si3N4, which improve the mechanical properties of the coating. The presented analyses of the results of the conducted research complement the previous studies on selected properties of nanocomposite layers with an amorphous structure and supplement the knowledge regarding their suitability for application to aluminum machine parts. Full article
(This article belongs to the Special Issue Preparation and Characterization of Nanocomposite Coatings of Materials)
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