Applied Surface Science Advances最新文献

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Fluorine-free superhydrophobic surfaces by atmospheric pressure plasma deposition of silazane-based suspensions 通过常压等离子体沉积硅烷基悬浮液实现无氟超疏水性表面
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-27 DOI: 10.1016/j.apsadv.2024.100645
Camilo Rendon Piedrahita, Kamal Baba, Robert Quintana, Patrick Choquet
{"title":"Fluorine-free superhydrophobic surfaces by atmospheric pressure plasma deposition of silazane-based suspensions","authors":"Camilo Rendon Piedrahita,&nbsp;Kamal Baba,&nbsp;Robert Quintana,&nbsp;Patrick Choquet","doi":"10.1016/j.apsadv.2024.100645","DOIUrl":"10.1016/j.apsadv.2024.100645","url":null,"abstract":"<div><div>Atmospheric plasma is used to deposit superhydrophobic fluorine-free thin films onto a substrate. In this process, a suspension of micron size silica particles in a silazane based precursor is deposited in a single step using a dielectric barrier discharge plasma jet moving above the substrate. Thanks to an optimized configuration between the suspension injection and the plasma jet, the silazane precursor can be polymerized on the substrate surface but also, on silica particles to form additional micro size particles. The experimental parameters for optimal deposition are discussed, with emphasis on those leading to the formation of this dual roughness surface caused by the arrangement of both silica particles and particles generated from the precursor plasma polymerization. The combination of these two different length scales for the roughness leads to a decreased wettability of the coated substrate and a water contact angle larger than 150°.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100645"},"PeriodicalIF":7.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current-voltage plots reveal details of the energy level alignment during photoelectron spectroscopy experiments 电流电压图揭示光电子能谱实验中能级排列的细节
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-24 DOI: 10.1016/j.apsadv.2024.100643
Grzegorz Greczynski
{"title":"Current-voltage plots reveal details of the energy level alignment during photoelectron spectroscopy experiments","authors":"Grzegorz Greczynski","doi":"10.1016/j.apsadv.2024.100643","DOIUrl":"10.1016/j.apsadv.2024.100643","url":null,"abstract":"<div><div>The photoelectron current <span><math><msub><mi>I</mi><mi>s</mi></msub></math></span> emitted from samples exposed to soft X-rays, such as is the case during X-ray photoelectron spectroscopy (XPS) analyses, is dominated by secondary electrons (SE) with energies not exceeding several eVs. Because of that, both the magnitude and the direction of <span><math><msub><mi>I</mi><mi>s</mi></msub></math></span> is highly sensitive to the applied sample bias <span><math><msub><mi>V</mi><mi>s</mi></msub></math></span> with the magnitude of just a few volts. By measuring current-voltage characteristics for a series of samples with different work functions <span><math><msub><mi>ϕ</mi><mrow><mi>S</mi><mi>A</mi></mrow></msub></math></span> a clear correlation between <span><math><msub><mi>ϕ</mi><mrow><mi>S</mi><mi>A</mi></mrow></msub></math></span> and the shape of the <span><math><mrow><msub><mi>I</mi><mi>s</mi></msub><mo>−</mo><msub><mi>V</mi><mi>s</mi></msub></mrow></math></span> curves is demonstrated. While all <span><math><mrow><msub><mi>I</mi><mi>s</mi></msub><mo>−</mo><msub><mi>V</mi><mi>s</mi></msub></mrow></math></span> plots have a characteristic “reversed S” shape, a clear and consistent shift towards positive <span><math><msub><mi>V</mi><mi>s</mi></msub></math></span> values is observed with increasing <span><math><msub><mi>ϕ</mi><mrow><mi>S</mi><mi>A</mi></mrow></msub></math></span>. The effect is explained by variations in the contact potential <span><math><msub><mi>V</mi><mi>c</mi></msub></math></span> established between the sample and the spectrometer. For all samples there is an excellent agreement between the <span><math><msub><mi>V</mi><mi>c</mi></msub></math></span> values (derived by ultraviolet photoelectron spectroscopy from the SE cut-offs) and the critical <span><math><msub><mi>V</mi><mi>s</mi></msub></math></span> value at which the photocurrent begins to drop. Hence, simple to perform current-voltage measurements, provide a unique insight into the details of the energy level alignment between sample and the spectrometer. In particular, the sign and the magnitude of the contact potential as well as relative changes in the sample work function can be determined. The knowledge of these parameters is often essential for correct interpretation of XPS spectra.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100643"},"PeriodicalIF":7.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000710/pdfft?md5=e7539ecdd61a3d201d4b16c346018b53&pid=1-s2.0-S2666523924000710-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of mechanical morphological structural and electrochemical properties of PVD TiAlN coating: A detail experimental and its correlation with an analytical approach using the least square method 研究 PVD TiAlN 涂层的机械形态结构和电化学性能:详细实验及其与使用最小二乘法的分析方法的相关性
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-20 DOI: 10.1016/j.apsadv.2024.100638
Soham Das , Soumya Kanti Biswas , Abhishek Kundu , Ranjan Ghadai , Spandan Guha
{"title":"Investigation of mechanical morphological structural and electrochemical properties of PVD TiAlN coating: A detail experimental and its correlation with an analytical approach using the least square method","authors":"Soham Das ,&nbsp;Soumya Kanti Biswas ,&nbsp;Abhishek Kundu ,&nbsp;Ranjan Ghadai ,&nbsp;Spandan Guha","doi":"10.1016/j.apsadv.2024.100638","DOIUrl":"10.1016/j.apsadv.2024.100638","url":null,"abstract":"<div><p>In this experimental investigation, a Physical Vapor Deposition (PVD) process was employed to deposit TiAlN coating onto a Si substrate. The nitrogen flow rate, bias voltage, and substrate-to-target distance were selected as input parameters, each with three different levels. The design of these input parameters was structured according to Taguchi's L9 Orthogonal Array (OA). Following deposition, the mechanical, microstructural, structural, and electrochemical properties of the TiAlN coating were meticulously characterized and analyzed to discern the influence of the selected parameters on its various properties. Microstructural analysis revealed a homogeneous structure throughout the film. Additionally, the mechanical properties of the film exhibited notable performance under the specified parameters. However, it was observed that no consistent trend could be identified across different properties concerning the applied parameters. To elucidate the complex relationships among these variables, the Least Squares Method (LSM) regression analysis technique was employed. This analytical approach facilitated the establishment of correlations among the diverse parameters, enhancing the understanding of their collective impact on the TiAlN coating properties. The understanding of analytical results will be useful for predicting the values between the two extremities to measure the performance parameters where the experimental results are not available.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100638"},"PeriodicalIF":7.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000667/pdfft?md5=a9cba5c63541262efe72510492925f2e&pid=1-s2.0-S2666523924000667-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
As-deposited and dewetted Cu layers on plasma treated glass: Adhesion study and its effect on biological response 等离子处理玻璃上的砷沉积和脱水铜层:附着力研究及其对生物反应的影响
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-18 DOI: 10.1016/j.apsadv.2024.100639
Alena Reznickova , Veronika Lacmanova , Marie Hubalek Kalbacova , Petr Hausild , Jiri Nohava , Zdenka Kolska , Anna Kutova , Petr Slepicka
{"title":"As-deposited and dewetted Cu layers on plasma treated glass: Adhesion study and its effect on biological response","authors":"Alena Reznickova ,&nbsp;Veronika Lacmanova ,&nbsp;Marie Hubalek Kalbacova ,&nbsp;Petr Hausild ,&nbsp;Jiri Nohava ,&nbsp;Zdenka Kolska ,&nbsp;Anna Kutova ,&nbsp;Petr Slepicka","doi":"10.1016/j.apsadv.2024.100639","DOIUrl":"10.1016/j.apsadv.2024.100639","url":null,"abstract":"<div><p>Improving the adhesion of nanosized copper films to a glass substrate is vital for their application in electronics and medicine, as it enhances their overall reliability. For this purpose, we employed Ar plasma etching (240 s) and magnetron sputtering to create copper layers on a glass substrate. Furthermore, we investigated the effect of subsequent solid state dewetting (at 300 °C) of Cu nanolayers on the interface stability. Increasing the sputtering time resulted in elevated copper concentration, UV-Vis absorption, conductivity, and surface roughness. The as-deposited and dewetted samples exhibited very good wettability with water contact angles below 60°. Importantly, plasma treatment improved the adhesion of the Cu layers to the glass. Subsequent dewetting accelerated surface diffusion and the oxidation of Cu atoms, causing structural and morphological changes. The presence of CuO after dewetting caused loss of the surface plasmon resonance (SPR) band in the UV-Vis spectrum and a decrease in sample conductivity due to the transformation of the copper layer from a metal to an oxide. Biological testing revealed a more pronounced bactericidal effect for the as-deposited Cu layer against <em>E. coli</em> and <em>S. epidermidis</em> on contrary to dewetted samples. The similar cytotoxic trend was observed for human dermal fibroblasts and hepatocytes. Nonetheless, biological testing confirmed better cell adhesion on dewetted Cu layers compared to the as-deposited ones. Therefore, our copper nanostructured samples could find application as antibacterial coatings of biomedical devices.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100639"},"PeriodicalIF":7.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000679/pdfft?md5=2695b3f3616979de16ee15129a68ad7b&pid=1-s2.0-S2666523924000679-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142242631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Concomitant silanization and controlled fibronectin adsorption on S53P4 bioactive glass enhances human adipose stem cells spreading and differentiation 在 S53P4 生物活性玻璃上同时进行硅烷化和可控纤连蛋白吸附可促进人类脂肪干细胞的扩散和分化
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-01 DOI: 10.1016/j.apsadv.2024.100635
Virginia Alessandra Gobbo , Amel Houaoui , Kimiya Tajik , Vesa P. Hytönen , Susanna Miettinen , Jonathan Massera
{"title":"Concomitant silanization and controlled fibronectin adsorption on S53P4 bioactive glass enhances human adipose stem cells spreading and differentiation","authors":"Virginia Alessandra Gobbo ,&nbsp;Amel Houaoui ,&nbsp;Kimiya Tajik ,&nbsp;Vesa P. Hytönen ,&nbsp;Susanna Miettinen ,&nbsp;Jonathan Massera","doi":"10.1016/j.apsadv.2024.100635","DOIUrl":"10.1016/j.apsadv.2024.100635","url":null,"abstract":"<div><p>Orthopedic disorders are increasing in our society due to population aging. Numerous biomaterials have been developed to support bone regeneration, however showing a strong discrepancy between <em>in vitro</em> and <em>in vivo</em> results. This has been attributed to a lack of knowledge about protein adsorption, an early step occurring after biomaterial implantation. Bioactive glass S53P4 is clinically accepted for orthopedic applications pertaining to its osteoconductive and osteogenic behavior. However, its interactions with proteins are still unclear. To better understand the impact of surface chemistry on the glass-protein interactions, bare and silanized S53P4 were placed in contact with fibronectin (fn), in static and dynamic conditions. The surfaces were characterized by zeta potential, confocal microscopy and FTIR-ATR spectroscopy.The impact of fn on the cell response was assessed by live-dead, proliferation and morphology tests, using human adipose stem cells (hASCs). Both S53P4 and silanized-S53P4 showed good cell viability. Fn was found to affect cell alignment on both bare and silanized substrates. The impact of the surface treatments on osteogenesis was evaluated studying the expression of relevant osteogenic markers (hDLX5, hRUNX2A, hOSTERIX), which was particularly promoted by the concomitant action of silanization and fn coating.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100635"},"PeriodicalIF":7.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000631/pdfft?md5=e9a0d15d3a7b90c7708a8e60b04e0d55&pid=1-s2.0-S2666523924000631-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142150945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TENG-driven single-droplet green electrochemical etching and deposition for chemical sensing applications 用于化学传感应用的 TENG 驱动的单液滴绿色电化学蚀刻和沉积
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-01 DOI: 10.1016/j.apsadv.2024.100634
Ruey-Chi Wang, Yi-Hong Zhou, Yu-Hsuan Lee, Hsiu-Cheng Chen, Chi-En Chen
{"title":"TENG-driven single-droplet green electrochemical etching and deposition for chemical sensing applications","authors":"Ruey-Chi Wang,&nbsp;Yi-Hong Zhou,&nbsp;Yu-Hsuan Lee,&nbsp;Hsiu-Cheng Chen,&nbsp;Chi-En Chen","doi":"10.1016/j.apsadv.2024.100634","DOIUrl":"10.1016/j.apsadv.2024.100634","url":null,"abstract":"<div><p>Selected area electrochemical etching (EE) and electrochemical deposition (ED) are widely used for fabricating microstructures and devices, but they require complex processes and expensive equipment and generate significant electrolyte waste. This study demonstrates a novel single-droplet electrochemical system using a triboelectric nanogenerator (TENG) for self-powered selected area EE and ED reactions. Utilizing TENG's pulsed power, Al nanostructures were created by EE, while nano-Ag and Cu<sub>2</sub>O nanocubes were synthesized by ED. The generated nanomaterials were applied to detect trace chemicals through the Surface-Enhanced Raman Scattering effect. The electrochemical reaction area can be controlled by droplet size, and patterns can be created using a needle movement platform. The size and density of nanostructures can be adjusted by the TENG's current, collision frequency, and electrolyte concentration. The deposition gradient from the center to the edge of the droplet is controlled by the distance between the needle and the substrate. COMSOL Multiphysics calculations show that a smaller D creates a larger electric field gradient. However, the varied deposition gradients were attributed to competition of electric field, diffusion effects, and capillary flow. This proposed green technology offers low cost, simplicity, no waste electrolyte, and self-powering capabilities, pioneering new research directions in EE and ED.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100634"},"PeriodicalIF":7.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266652392400062X/pdfft?md5=d2dd1a7bd54773d357549cb68e8ba555&pid=1-s2.0-S266652392400062X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142099408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transfer of micron pattern with reactive atmospheric plasma jets into fused silica 用反应性大气等离子体射流将微米图案转移到熔融石英中
IF 7.5
Applied Surface Science Advances Pub Date : 2024-09-01 DOI: 10.1016/j.apsadv.2024.100636
Martin Ehrhardt , Pierre Lorenz , Joachim Zajadacz , Robert Heinke , Thomas Arnold , Klaus Zimmer
{"title":"Transfer of micron pattern with reactive atmospheric plasma jets into fused silica","authors":"Martin Ehrhardt ,&nbsp;Pierre Lorenz ,&nbsp;Joachim Zajadacz ,&nbsp;Robert Heinke ,&nbsp;Thomas Arnold ,&nbsp;Klaus Zimmer","doi":"10.1016/j.apsadv.2024.100636","DOIUrl":"10.1016/j.apsadv.2024.100636","url":null,"abstract":"<div><p>Pattern transfer by plasma etching is a traditional standard technology in microelectronics and other micron technologies. These technologies require vacuum conditions, which limit throughput, size, and low-cost fabrication. Recent developments in low cost atmospheric plasma technologies may be suitable to realize pattern transfer without vacuum conditions. Reactive atmospheric plasma jet etching has been used to transfer aluminum mask patterns to fused silica. Aluminum line patterns of 2.5 to 50 µm width on fused silica wafer are exposed to a static as well as a scanning CF<sub>4</sub>/O<sub>2</sub> reactive atmospheric plasma jet with a footprint diameter of 0.85 mm (full width at half maximum), resulting in etching only the SiO<sub>2</sub> and causing a nearly isotropic etch with an etch rate of about 200 nm/s. As a result, line narrowing, trapezoidal line cross-sections, and under-etching were observed. The successfully transferred line patterns with the demonstrated widths and depths are of technological interest in various fields of application. Therefore, this approach enables low-cost patterning of fused silica through the use of reactive atmospheric plasma jet etching for micron-scale pattern transfer. This advancement addresses the limitations of both traditional vacuum-based and wet etching methods.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100636"},"PeriodicalIF":7.5,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000643/pdfft?md5=91e11ffead3dff5c2224954deb53fba6&pid=1-s2.0-S2666523924000643-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preface on Novel Aspects in Theoretical and Computational Surface Science (NATCSS) 理论与计算表面科学(NATCSS)新观点序言
IF 7.5
Applied Surface Science Advances Pub Date : 2024-08-28 DOI: 10.1016/j.apsadv.2024.100632
Seung Geol Lee , Ian Shuttleworth , Herbert M. Urbassek , Byungchan Han , Alfredo Juan
{"title":"Preface on Novel Aspects in Theoretical and Computational Surface Science (NATCSS)","authors":"Seung Geol Lee ,&nbsp;Ian Shuttleworth ,&nbsp;Herbert M. Urbassek ,&nbsp;Byungchan Han ,&nbsp;Alfredo Juan","doi":"10.1016/j.apsadv.2024.100632","DOIUrl":"10.1016/j.apsadv.2024.100632","url":null,"abstract":"","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100632"},"PeriodicalIF":7.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000606/pdfft?md5=84cf5fde1316e072dde91b94349fd28e&pid=1-s2.0-S2666523924000606-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sand blasting for hydrophobic surface generation in polymers: Experimental and machine learning approaches 在聚合物中喷砂生成疏水表面:实验和机器学习方法
IF 7.5
Applied Surface Science Advances Pub Date : 2024-08-28 DOI: 10.1016/j.apsadv.2024.100633
Erencan Oranli , Chenbin Ma , Nahsan Gungoren , Asghar Heydari Astaraee , Sara Bagherifard , Mario Guagliano
{"title":"Sand blasting for hydrophobic surface generation in polymers: Experimental and machine learning approaches","authors":"Erencan Oranli ,&nbsp;Chenbin Ma ,&nbsp;Nahsan Gungoren ,&nbsp;Asghar Heydari Astaraee ,&nbsp;Sara Bagherifard ,&nbsp;Mario Guagliano","doi":"10.1016/j.apsadv.2024.100633","DOIUrl":"10.1016/j.apsadv.2024.100633","url":null,"abstract":"<div><p>Wettability is a crucial surface feature of polymers due to their numerous interaction-destined applications. This study focuses on the application of sand blasting process for investigating the wettability of polymeric materials to produce hydrophobic behavior. Four different polymeric materials, Acrylonitrile Butadiene Styrene (ABS), Poly(methyl methacrylate) (PMMA), Polypropylene (PP), and Polycarbonate (PC) underwent sand blasting with varying process parameters, following a comprehensive plan for the design of experiments. Subsequent analyses included surface roughness measurement and wettability tests, supplemented by scanning electron and confocal microscopy observations to gain deeper insights into the blasted surfaces. A predictive model based on a machine learning algorithm was developed using the backpropagation technique to correlate the surface treatment parameters to surface roughness and wettability indexes. From the experimental results sand blasting proved to be efficient in creating hydrophobic surfaces on all the tested materials. The developed neural network demonstrated high fitting degrees between the predicted and measured values. ABS exhibited the most hydrophobic behavior and emerged as a strong candidate for further investigations.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100633"},"PeriodicalIF":7.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000618/pdfft?md5=4155484b966e607625fbecec370bdcfd&pid=1-s2.0-S2666523924000618-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of SiO2-reinforcement and alkali treatment on the corrosion resistance of plasma electrolytic oxide coating on AZ31 magnesium alloy 二氧化硅强化和碱处理对 AZ31 镁合金等离子电解氧化物涂层耐腐蚀性的影响
IF 7.5
Applied Surface Science Advances Pub Date : 2024-08-26 DOI: 10.1016/j.apsadv.2024.100631
Sri Rahmadani, Anawati Anawati
{"title":"Effect of SiO2-reinforcement and alkali treatment on the corrosion resistance of plasma electrolytic oxide coating on AZ31 magnesium alloy","authors":"Sri Rahmadani,&nbsp;Anawati Anawati","doi":"10.1016/j.apsadv.2024.100631","DOIUrl":"10.1016/j.apsadv.2024.100631","url":null,"abstract":"<div><p>Plasma electrolytic oxidation (PEO) produces an oxide coating containing pores and cracks lowering corrosion protection. The defects can be sealed by in-situ or post-treatment methods. This work compares the sealing effect of SiO<sub>2</sub> particles and post-alkali treatment on the corrosion resistance of PEO coatings formed on AZ31 magnesium (Mg) alloy. PEO was conducted in a phosphate-based electrolyte containing 2 g/l nanoparticle SiO<sub>2</sub> at a constant current density of 300 A/m<sup>2</sup> for 10 min. The post-alkali treatment was performed in 0.5 M NaOH solution at 80 °C for 30 min. The corrosion resistance was evaluated using polarization, electrochemical impedance spectroscopy, and weight loss tests. The SiO<sub>2</sub> particles were successfully embedded uniformly in the Mg<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> coating, enhancing the coating compactness and stability. The reinforced coating exhibited ten times higher impedance modulus and lower corrosion current density. The post-alkali treatment improved corrosion resistance but not as high as the SiO<sub>2</sub> reinforcement. The impedance modulus of the alkali-treated specimen increased five times, and the corrosion current density decreased three times of the base coating. The weight loss test consistently showed that the SiO<sub>2</sub>-reinforced coating generated lower mass loss during 14 days of immersion in simulated body fluid.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"23 ","pages":"Article 100631"},"PeriodicalIF":7.5,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266652392400059X/pdfft?md5=75c62bcf2061d1dd4eff14167cf6c163&pid=1-s2.0-S266652392400059X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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