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High-entropy coatings (HEC) for high-temperature applications : materials, processing, and properties
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Arshad, Muhammad, Amer, Mohamed, Hayat, Qamar, Janik, Vit, Zhang, Xiang, Moradi, Mahmoud and Bai, Mingwen (2022) High-entropy coatings (HEC) for high-temperature applications : materials, processing, and properties. Coatings, 12 (5). 691. doi:10.3390/coatings12050691 ISSN 2079-6412.
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WRAP-High-entropy-coatings-high-temperature-materials-processing-properties-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (12Mb) | Preview |
Official URL: http://dx.doi.org/10.3390/coatings12050691
Abstract
High-entropy materials (HEM), including alloys, ceramics, and composites, are a novel class of materials that have gained enormous attention over the past two decades. These multi-component novel materials with unique structures always have exceptionally good mechanical properties and phase stability at all temperatures. Of particular interest for high-temperature applications, e.g., in the aerospace and nuclear sectors, is the new concept of high-entropy coatings (HEC) on low-cost metallic substrates, which has just emerged during the last few years. This exciting new virgin field awaits exploration by materials scientists and surface engineers who are often equipped with high-performance computational modelling tools, high-throughput coating deposition technologies and advanced materials testing/characterisation methods, all of which have greatly shortened the development cycle of a new coating from years to months/days. This review article reflects on research progress in the development and application of HEC focusing on high-temperature applications in the context of materials/composition type, coating process selection and desired functional properties. The importance of alloying addition is highlighted, resulting in suppressing oxidation as well as improving corrosion and diffusion resistance in a variety of coating types deposited via common deposition processes. This review provides an overview of this hot topic, highlighting the research challenges, identifying gaps, and suggesting future research activity for high temperature applications.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Library of Congress Subject Headings (LCSH): | Coatings , Coatings -- Thermal properties, Materials at high temperatures , Surfaces (Technology) | ||||||
Journal or Publication Title: | Coatings | ||||||
Publisher: | MDPI | ||||||
ISSN: | 2079-6412 | ||||||
Official Date: | 18 May 2022 | ||||||
Dates: |
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Volume: | 12 | ||||||
Number: | 5 | ||||||
Article Number: | 691 | ||||||
DOI: | 10.3390/coatings12050691 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 26 May 2022 | ||||||
Date of first compliant Open Access: | 26 May 2022 |
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