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        <title>Frontiers in Coatings, Dyes and Interface Engineering | Engineered Surfaces and Interfaces section | New and Recent Articles</title>
        <link>https://www.frontiersin.org/journals/coatings-dyes-and-interface-engineering/sections/engineered-surfaces-and-interfaces</link>
        <description>RSS Feed for Engineered Surfaces and Interfaces section in the Frontiers in Coatings, Dyes and Interface Engineering journal | New and Recent Articles</description>
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        <pubDate>2026-05-14T01:19:02.386+00:00</pubDate>
        <ttl>60</ttl>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/frcdi.2025.1598207</guid>
        <link>https://www.frontiersin.org/articles/10.3389/frcdi.2025.1598207</link>
        <title><![CDATA[Effects of rare-earth element yttrium (Y) on the solid-particle erosion resistance of AlCrFeNi medium-entropy alloy at ambient and elevated temperatures]]></title>
        <pubdate>2025-05-27T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Zhen Xu</author><author>Guijiang Diao</author><author>Yunqing Tang</author><author>Keyang Chen</author><author>Kaifan Lin</author><author>Anqiang He</author><author>Doug Fraser</author><author>Jing Li</author><author>Rei Chung</author><author>Q. Y. Li</author><author>D. Y. Li</author>
        <description><![CDATA[High-entropy alloys (HEAs) and medium-entropy alloys (MEAs) have demonstrated many superior properties, including high strength, toughness, and thermal stability. Among MEAs, AlCrFeNi has received considerable attention due to its well-balanced mechanical properties and cost-effectiveness, making it a promising candidate for industrial applications. It is known that rare-earth elements can effectively enhance the oxidation resistance of alloys containing passive elements. In this study, AlCrFeNi MEAs with Y additions (0.5, 1.0, and 1.5 wt.%) were fabricated by arc melting. Microstructures of fabricated samples and their mechanical properties and resistance to air-jet sand erosion were investigated at both room temperature (20°C) and elevated temperature (700°C). For the sake of comparison, a commercial nickel-based Waspaloy superalloy was also evaluated. At both room and elevated temperatures, the AlCrFeNi MEA demonstrated high superiority over the widely used nickel-based superalloy. The Y additions increased the hardness and yield strength of the MEA, leading to improved erosion resistance at room temperature, which was more obvious at elevated temperatures, largely benefiting from the improved resistance to accelerated oxidation at elevated temperatures. The obtained information highlighted the beneficial effects of the minor Y additions in enhancing both the mechanical performance and high-temperature durability of the AlCrFeNi MEA, which would help extend the application of the MEA to higher temperatures.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/frcdi.2025.1539792</guid>
        <link>https://www.frontiersin.org/articles/10.3389/frcdi.2025.1539792</link>
        <title><![CDATA[Failure in the adhesion of hydroxyapatite coatings to surgical screws: a fourier transform infrared spectroscopy qualitative study]]></title>
        <pubdate>2025-02-06T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Mariana Pereyra</author><author>Marco Navatta</author><author>Eduardo Méndez</author>
        <description><![CDATA[Failure in the adhesion between hydroxyapatite and the metallic substrate in commercial biomaterials is one of the significant drawbacks in implantology. The demand for confident analytical methods to characterize these coatings is met through a rigorous research process. Fourier-transform infrared spectroscopy (FTIR) was chosen as the method to characterize hydroxyapatites. A meticulous data analysis from FTIR spectra was conducted, and an FTIR library was constructed from FTIR spectra of different types of hydroxyapatites, considering several chemical environments. The analytical procedure involved the registry of the spectra, localization of the leading absorption bands from the minima of the second derivative spectra, and reconstitution of the original spectra by curve deconvolution. The FTIR library was employed to analyze commercial surgical screws that failed in their use in different implants. Our methodology identified the structural reasons for such failure, caused by the selective removal of non-apatitic environments during adsorption onto the metallic implant. The method identifies the adhesion degree of the apatite coating on the implant before implantation in a biological organism, thereby preventing additional patient interventions and the associated costs.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/frcdi.2024.1428841</guid>
        <link>https://www.frontiersin.org/articles/10.3389/frcdi.2024.1428841</link>
        <title><![CDATA[On the elasticity, adhesion, and friction of PDMS at the nanometer scale]]></title>
        <pubdate>2024-11-07T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>W. J. Lee</author><author>J. W. Ha</author><author>J. M. Kim</author><author>A. Caron</author>
        <description><![CDATA[The interdependence of adhesion, friction, and elasticity of elastomers is relevant for various engineering applications. However, its investigation has been limited to smooth glass surfaces. We apply atomic force microscopy (AFM)-based methods to quantify PDMS’s elastic and tribological properties in single asperity contacts (quasi-static and sliding) with a nanometer-scale SiOx asperity under dry conditions. The selected experimental approach allows us to model the contact initiation with PDMS and its degradation. Combining quasi-static and reciprocal sliding experiments, we identify several contributions to adhesion and friction: junction formation, elastic deformation, rupture, and adhesive material transfer. Furthermore, we find correlations between the elastic deformation of PDMS/SiO2 junctions and their adhesion hysteresis on the one hand and the shear strength and the work of adhesion on the other.]]></description>
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