Advanced Ceramic Films and Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Thin Films".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 5493

Special Issue Editors


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Guest Editor
Instituto de Cerámica y Vidrio, CSIC C/kelsen 5, 28049 Madrid, Spain
Interests: thin films; surface; nanostructures; interface; surface plasmon resonance; Raman spectroscopy; X-ray absorption spectroscopy; solid-state dewetting; cold sintering process; ceramics; interaction effects
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Guest Editor
Spanish CRG BM25-SpLine at The ESRF—The European Synchrotron, 38000 Grenoble, France and Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, 28049 Madrid, Spain
Interests: sol-gel synthesis; pulsed laser deposition; nanoparticles; thin films; magnetic materials; microwave absorption; X-ray diffraction; confocal Raman microscopy; iron oxides; carbides

Special Issue Information

Dear Colleagues,

It is a great pleasure to invite you to contribute your original research to this Special Issue centred on the preparation, characterization, properties, and applications of ceramic coatings and films. Nowadays, ceramic films and coatings are widely used for many purposes in a variety of fields. Their role is not only in traditional applications, but in new, advanced functions thanks to their interesting characteristics, which are different from those of bulk materials. The research field of ceramic films and coatings is very wide, covering optics, electronics, catalytic systems, energy and biomaterials, among others. In addition, the fabrication method, the crystalline character, the compositional phases, and the film thickness from nanometers to micrometers provide the ceramic systems with a multitude of specific properties to be studied and used in real applications.

This Special Issue on “Advanced Ceramic Films and Coatings” aims to share recent achievements in the field, with special attention paid to the relationship between advanced preparation, properties and applications and physical characteristics. Studies involving novel fabrication and self-assembly methodologies, including industrially scalable techniques and applications, magnetic and microwave absorbing ceramics, the use of Raman spectroscopy and synchrotron radiation-based techniques for the study of systems, as well as the use of computer modeling and simulations to predict the properties and mechanisms of advanced fims and coatings, are very welcome.

Dr. Aída Serrano
Dr. Jesús López-Sánchez
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

  • Functional ceramics
  • New approaches for the preparation of films and coatings
  • Novel techniques and methods for the characterization of films and coatings
  • Multilayers and heterostructures
  • Surface functionalization
  • Industrial applications of films
  • Synchrotron radiation
  • Mechanisms and models
  • Mesoporous films and coatings
  • Magnetic ceramic films and coatings
  • Microwave absorbing films and coatings
  • Nano- and microparticles embedded in matrix films and coatings

Published Papers (2 papers)

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Research

12 pages, 4360 KiB  
Article
Improving the CO and CH4 Gas Sensor Response at Room Temperature of α-Fe2O3(0001) Epitaxial Thin Films Grown on SrTiO3(111) Incorporating Au(111) Islands
by Aída Serrano, Jesús López-Sánchez, Iciar Arnay, Rosalía Cid, María Vila, Eduardo Salas-Cólera, Germán R. Castro and Juan Rubio-Zuazo
Coatings 2021, 11(7), 848; https://doi.org/10.3390/coatings11070848 - 14 Jul 2021
Cited by 5 | Viewed by 2251
Abstract
In this work, the functional character of complex α-Fe2O3(0001)/SrTiO3(111) and Au(111) islands/α-Fe2O3(0001)/SrTiO3(111) heterostructures has been proven as gas sensors at room temperature. Epitaxial Au islands and α-Fe2O3 thin [...] Read more.
In this work, the functional character of complex α-Fe2O3(0001)/SrTiO3(111) and Au(111) islands/α-Fe2O3(0001)/SrTiO3(111) heterostructures has been proven as gas sensors at room temperature. Epitaxial Au islands and α-Fe2O3 thin film are grown by pulsed laser deposition on SrTiO3(111) substrates. Intrinsic parameters such as the composition, particle size and epitaxial character are investigated for their influence on the gas sensing response. Both Au and α-Fe2O3 layer show an island-type growth with an average particle size of 40 and 62 nm, respectively. The epitaxial and incommensurate growth is evidenced, confirming a rotation of 30° between the in-plane crystallographic axes of α-Fe2O3(0001) structure and those of SrTiO3(111) substrate and between the in-plane crystallographic axes of Au(111) and those of α-Fe2O3(0001) structure. α-Fe2O3 is the only phase of iron oxide identified before and after its functionalization with Au nanoparticles. In addition, its structural characteristics are also preserved after Au deposition, with minor changes at short-range order. Conductance measurements of Au(111)/α-Fe2O3(0001)/SrTiO3(111) system show that the incorporation of epitaxial Au islands on top of the α-Fe2O3(0001) layer induces an enhancement of the gas-sensing activity of around 25% under CO and 35% under CH4 gas exposure, in comparison to a bare α-Fe2O3(0001) layer grown on SrTiO3(111) substrates. In addition, the response of the heterostructures to CO gas exposure is around 5–10% higher than to CH4 gas in each case. Full article
(This article belongs to the Special Issue Advanced Ceramic Films and Coatings)
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13 pages, 2207 KiB  
Article
Effect of Annealing Temperature on Microstructure and Resistivity of TiC Thin Films
by Litipu Aihaiti, Kamale Tuokedaerhan, Beysen Sadeh, Min Zhang, Xiangqian Shen and Abuduwaili Mijiti
Coatings 2021, 11(4), 457; https://doi.org/10.3390/coatings11040457 - 15 Apr 2021
Cited by 11 | Viewed by 2027
Abstract
Titanium carbide (TiC) thin films were prepared by non-reactive simultaneous double magnetron sputtering. After deposition, all samples were annealed at different temperatures under high-vacuum conditions. This paper mainly discusses the influence of deposition methods and annealing temperatures on microstructure, surface topography, bonding states [...] Read more.
Titanium carbide (TiC) thin films were prepared by non-reactive simultaneous double magnetron sputtering. After deposition, all samples were annealed at different temperatures under high-vacuum conditions. This paper mainly discusses the influence of deposition methods and annealing temperatures on microstructure, surface topography, bonding states and electrical resistivity of TiC films. XRD (X-ray diffraction) results show that TiC thin films can still form crystals without annealing, and the crystallinity of thin films is improved after annealing. The estimated grain size of the TiC films varies from 8.5 nm to 14.7 nm with annealing temperature. It can be seen from SEM (scanning electron microscope) images that surfaces of the films are composed of irregular particles, and when the temperature reaches to 800 °C, the shape of the particles becomes spherical. Growth rate of film is about 30.8 nm/min. Oxygen-related peaks were observed in XPS (X-ray photoelectron spectroscopy) spectra, which is due to the absorption of oxygen atoms on the surface of the film when exposed to air. Raman spectra confirm the formation of TiC crystals and amorphous states of carbon. Resistivity of TiC films decreases monotonically from 666.73 to 86.01 μΩ·cm with the increase in annealing temperature. In brief, the TiC thin films prepared in this study show good crystallinity, thermal stability and low resistivity, which can meet the requirements of metal gate applications. Full article
(This article belongs to the Special Issue Advanced Ceramic Films and Coatings)
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