International Journal of Mechanical and Materials Engineering最新文献

Stimuli-responsive hydrogels, their mass transfer, intermolecular interactions, and applications in biomedical devices

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-05-14 DOI: 10.1186/s40712-025-00283-y

Parker M. Toews, Ashwin Velraj, Jeffrey S. Bates

{"title":"Stimuli-responsive hydrogels, their mass transfer, intermolecular interactions, and applications in biomedical devices","authors":"Parker M. Toews, Ashwin Velraj, Jeffrey S. Bates","doi":"10.1186/s40712-025-00283-y","DOIUrl":"10.1186/s40712-025-00283-y","url":null,"abstract":"<div><p>Hydrogels are versatile materials that can be used in biomedical applications, where their multifunctional capabilities can be leveraged as sensors, actuators, drug delivery devices, and chemomechanically responsive materials. This review article explores the diverse applications of hydrogels and their chemomechanical response. The foundations of hydrogels, encompassing their physics, chemistry, and diffusion properties, are presented, providing a comprehensive understanding of their behavior. Synthesis and fabrication challenges, such as batch consistency, storage stability, degradation, and inconsistent mechanical swelling behavior, are addressed. Hydrogels are often characterized by using a variety of methods to define the full scope of their material properties, including structural analysis, UV–visible spectroscopy, dynamic mechanical analysis, scanning electron microscopy, rheology, optical microscopy, pressure sensing, and nuclear magnetic resonance. The current state of the art of hydrogels is explored, focusing on the physical and chemical properties and some theories and mathematical models that describe their behavior. We discuss drug delivery, diffusion studies, controlled release, sustained drug interactions, and various drug delivery methods, ranging from transdermal to ocular to mucous membranes. We further present hydrogels as viable candidates for 3D-printed devices, including sensors and actuators, where we examine specificity, selectivity, biomarker interactions, and molecularly imprinted polymers. The emerging areas of 3D-printed hydrogel devices, microfluidics, and soft robotics and their potential uses are highlighted. Finally, limitations, opportunities, and future research directions are proposed to enhance commercial viability and define potentially valuable insights for future advancements in the field. </p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00283-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944349","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

Synthesis of mono and hetero-bi nuclear lanthanum (III) and europium (III) complexes of 2-hydroxy-5-sulfobenzoic acid and 1,10-phenanthroline: luminescence and magnetic studies 2-羟基-5-巯基苯甲酸和1,10-菲罗啉单核和异核镧（III）和铕（III）配合物的合成：发光和磁性研究

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-05-09 DOI: 10.1186/s40712-025-00226-7

Rukhsana J. Wani, Arshad Hussain, Mehraj Ud Din Sheikh, Mohd Nadeem Bukhari, Maryam Fatima, Gazunfor Ali

{"title":"Synthesis of mono and hetero-bi nuclear lanthanum (III) and europium (III) complexes of 2-hydroxy-5-sulfobenzoic acid and 1,10-phenanthroline: luminescence and magnetic studies","authors":"Rukhsana J. Wani, Arshad Hussain, Mehraj Ud Din Sheikh, Mohd Nadeem Bukhari, Maryam Fatima, Gazunfor Ali","doi":"10.1186/s40712-025-00226-7","DOIUrl":"10.1186/s40712-025-00226-7","url":null,"abstract":"<div><p>The resurgence of interest in lanthanide coordination complexes due to their diverse applications has been increasing for past decade. These lanthanide complexes have found applications such as catalysts, sensors, optoelectronics, light sources, and modified semiconductors. The modifications in the lanthanide complex chemistry due to the use of different complexation agents enhanced the luminescence properties by varying the emission bands, stoke shifts, and lifetimes accordingly. This versatile nature of lanthanide complexes increased our interest to make a good contribution to the field. The complexes of lanthanum, europium, and novel binary complex of La and Eu metals with 1,10-phenanthroline (Phen) and 5-sulfosalicylic acid (SSA) were synthesized by co-precipitation method. Different physicochemical techniques like analytical and spectroscopic were used to characterize the ligands and complexes. The coordination of ligands with metals in complexes was confirmed by FTIR and UV spectroscopy. The surface morphology of nine coordinated La-complexes and seven coordinated Eu complexes was investigated by SEM micrographs. The X-ray crystallographic analysis revealed that all the complexes exhibit a triclinic crystal system. All the complexes were found to exhibit self-reversed magnetic hysteresis (SRMH). The luminescence and magnetic properties of mixed metal complexes are enhanced as compared to their mononuclear analogs.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00226-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925581","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

Anodic oxidation of additively manufactured Sc-doped Al–Mg alloy in aqueous cerium (III) nitrate for corrosion protection 添加剂制备的掺sc铝镁合金在硝酸铈水溶液中的阳极氧化及其防腐性能

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-05-09 DOI: 10.1186/s40712-025-00284-x

Denise Yin, Plamen A. Demirev, Tanner R. Hamann, David M. Lee, Maddison R. Harman, Michael V. Cyrana, Steven. M. Storck, Charles W. Kerechanin II, Rengaswamy Srinivasan

{"title":"Anodic oxidation of additively manufactured Sc-doped Al–Mg alloy in aqueous cerium (III) nitrate for corrosion protection","authors":"Denise Yin, Plamen A. Demirev, Tanner R. Hamann, David M. Lee, Maddison R. Harman, Michael V. Cyrana, Steven. M. Storck, Charles W. Kerechanin II, Rengaswamy Srinivasan","doi":"10.1186/s40712-025-00284-x","DOIUrl":"10.1186/s40712-025-00284-x","url":null,"abstract":"<div><p>Additively manufactured scandium-doped AA5083 aluminum-magnesium alloy (AA5083-Sc) has a higher yield strength compared to the undoped version. However, AA5083-Sc is prone to pitting and microbiologically induced corrosion in seawater. Chemical conversion coating using aqueous cerium (III) nitrate, Ce(NO<sub>3</sub>)<sub>3</sub>, provides only a moderate improvement in corrosion resistance. Electrochemical anodic oxidation of the alloy’s surface in a 0.2-M Ce(NO<sub>3</sub>)<sub>3</sub> solution at pH 4, conducted over an extended period at low current density, significantly enhances its corrosion resistance. After undergoing surface oxidation, the alloy demonstrates corrosion resistance for more than a year when submerged in aerated water containing 3.5% sodium chloride and two types of corrosion-inducing bacteria: <i>Vibrio penaeicida</i> and <i>Thalassospira profundimaris</i>. Electrochemical oxidation transforms the alloy surface oxide from an insulator to a p-type semiconductor, effectively slowing down the cathodic reduction reaction without hindering anodic oxidation. Since the rate of electrochemical corrosion is determined by the slower of two reactions—metal oxidation and the accompanying cathodic reaction—our findings suggest that cathodic reaction slowing is sufficient to reduce the corrosion rate. Additionally, cerium is known for its antifouling properties, and treating the surface with cerium also helps to minimize biofouling and microbial colonies.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00284-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929915","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

Synthesis and characterization of MgO-ZrO2 mixed oxides prepared by the sol–gel method 溶胶-凝胶法制备MgO-ZrO2混合氧化物的合成与表征

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-05-07 DOI: 10.1186/s40712-025-00275-y

José Armando Olmos López, Alida Elizabeth Cruz Pérez, María Guadalupe Hernández Cruz, Marcía Eugenia Ojeda Morales, Ebelia del Ángel Meraz, Cecilia Encarnación Gómez

{"title":"Synthesis and characterization of MgO-ZrO2 mixed oxides prepared by the sol–gel method","authors":"José Armando Olmos López, Alida Elizabeth Cruz Pérez, María Guadalupe Hernández Cruz, Marcía Eugenia Ojeda Morales, Ebelia del Ángel Meraz, Cecilia Encarnación Gómez","doi":"10.1186/s40712-025-00275-y","DOIUrl":"10.1186/s40712-025-00275-y","url":null,"abstract":"<div><p>Combining ceramic materials such as MgO and ZrO<sub>2</sub> can have a wide chemical and technological application. In this context, the sol–gel method is a very noble method for preparing mixed oxides, as it allows the control of their textural and surface properties. This paper aims to evaluate the structural and morphological properties of MgO-ZrO<sub>2</sub> mixed oxides as a function of their composition, for which solids of 10, 25, 50, 75, and 90% mol of ZrO<sub>2</sub> were synthesized by the sol–gel method. The obtained materials were characterized by N<sub>2</sub> physisorption, X-ray diffraction, scanning electron microscopy and diffuse reflectance, Fourier transform infrared, and Raman spectroscopy. The results showed that the textural properties of MgO improved by adding 25% ZrO<sub>2</sub>, such that this solid showed the highest surface area (124 m<sup>2</sup>/g) and pore diameter of 12 nm. FTIR, RD-UV–Vis, and Raman spectra showed the presence of O–H chemical bonds due to the hygroscopic character of the materials. In contrast, XRD results showed MgO in the periclase phase and ZrO<sub>2</sub> mostly in the tetragonal phase. It was also observed that the bandgap energy increases slightly as a function of ZrO<sub>2</sub> content. On the other hand, SEM micrographs showed that the increase of ZrO<sub>2</sub> changes the morphology of the particles, size and shape.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00275-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913816","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

Lithium Manganese Oxide (Li2MnO3) as a promising photocatalyst for the degradation of Eriochrome Black T 氧化锂锰（Li2MnO3）作为一种有前途的光催化剂降解铬黑T

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-30 DOI: 10.1186/s40712-025-00247-2

Aderemi Babatunde Alabi, Marco Villani, Valentina Sinisi, Stefano Rampino, Nicola Coppede, Samuel Adebayo, Haleemat Iyabode Adegoke, Samson Ibukun Akinsola

{"title":"Lithium Manganese Oxide (Li2MnO3) as a promising photocatalyst for the degradation of Eriochrome Black T","authors":"Aderemi Babatunde Alabi, Marco Villani, Valentina Sinisi, Stefano Rampino, Nicola Coppede, Samuel Adebayo, Haleemat Iyabode Adegoke, Samson Ibukun Akinsola","doi":"10.1186/s40712-025-00247-2","DOIUrl":"10.1186/s40712-025-00247-2","url":null,"abstract":"<div><p>Wastewater pollution caused by toxic dyes from the textile industry is a global challenge, threatening agricultural productivity, food security, and access to clean water for livestock. In recent years, photocatalytic degradation of organic pollutants using semiconducting materials has emerged as a promising approach for sustainable wastewater treatment. We present a cost-effective synthesis method for lithium manganese oxide (Li<sub>2</sub>MnO<sub>3</sub>), which aggregate to form a densely packed microcrystalline powder, with smooth-stone morphology, and monoclinic crystal structure. Optical characterization reveals broad visible light absorption, strong infrared reflectance and an optical bandgap of 2.1 eV, suggesting potential applications in radiation-resistant coatings. Moreover, the obtained Li<sub>2</sub>MnO<sub>3</sub> material effectively degraded Eriochrome Black T, a common textile dye, with efficiencies up to 73% for 5 × 10⁻<sup>5</sup> M solutions, under illumination at 625 nm, within 60 min. These findings underscore the potential of Li<sub>2</sub>MnO<sub>3</sub> nanostructured microcrystals for wastewater treatment applications.\u0000</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00247-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143888711","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

Characterization of Pd-modified TiO2-based thin films and their effect on photocatalytic activity pd修饰tio2基薄膜的表征及其对光催化活性的影响

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-30 DOI: 10.1186/s40712-025-00279-8

D. A. Solís-Casados, L. Escobar-Alarcón, R. López, D. S. García-Zaleta, J. M. Vázquez Rodríguez, C. Encarnación-Gómez

{"title":"Characterization of Pd-modified TiO2-based thin films and their effect on photocatalytic activity","authors":"D. A. Solís-Casados, L. Escobar-Alarcón, R. López, D. S. García-Zaleta, J. M. Vázquez Rodríguez, C. Encarnación-Gómez","doi":"10.1186/s40712-025-00279-8","DOIUrl":"10.1186/s40712-025-00279-8","url":null,"abstract":"<div><p>Thin film technology has made significant contributions to the field of photocatalysis through improvements in surface properties and a decrease in material costs. Therefore, the present study aims to evidence the properties that Pd can confer to TiO<sub>2</sub> thin films prepared by chemical vapor deposition technique and to verify their effectiveness as photocatalysts in the degradation reaction of the carbinol-based malachite green dye. TiO<sub>2</sub> films with different nominal Pd contents (2.8, 3.7, 4.6, and 6.4 at. % Pd) synthesized by CVD at 400 °C and 1 Torr pressure exhibit significant changes in their crystal structure, morphology, and electronic properties. On the one hand, at low concentrations (2.8 and 3.7 at. % Pd), substitutional doping is promoted. In contrast, the increase in concentration (4.6 and 6.4 at. % Pd) encourages the formation of PdO and PdTiO<sub>3</sub> phases, as indicated by X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy results. The anatase phase is partially inhibited by other phases, such as Pd–O and Ti-Pd–O; consequently, the grain size that constitutes the film is considerably reduced, and microstrains are increased. On the other hand, the study of the optical properties reveals a decrease in the bandgap energy and the recombination velocity of the charge carriers, resulting in a maximum degradation of 67% of the dye, which is obtained with film 4.6 at. % Pd, attributed to a synergistic effect between the observed properties.\u0000</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00279-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892746","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

3D-printable nanocomposite for the production of unique nanotextured surfaces: art-inspired distribution of magnetic nanorods 用于生产独特纳米纹理表面的3d打印纳米复合材料：磁性纳米棒的艺术灵感分布

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-28 DOI: 10.1186/s40712-025-00268-x

Anderson Gomes Vieira, Petrus d’Amorim Santa-Cruz, Antonio Carlos Pavão

{"title":"3D-printable nanocomposite for the production of unique nanotextured surfaces: art-inspired distribution of magnetic nanorods","authors":"Anderson Gomes Vieira, Petrus d’Amorim Santa-Cruz, Antonio Carlos Pavão","doi":"10.1186/s40712-025-00268-x","DOIUrl":"10.1186/s40712-025-00268-x","url":null,"abstract":"<div><p>This study reports the development of printable magnetic nanocomposites designed with a novel nanotextured surface, featuring nanospikes—composed of iron oxide magnetic nanorods—distributed with a subtle vertical alignment tendency, inspired by the Beam Drop Inhotim artwork,termed here “Beam Drop Inhotim Surfaces” (BDIS). The nanorods were synthesized via reflux and hydrothermal routes, then incorporated into a commercial photopolymerizable resin, forming a printable magnetic nanocomposite. It was printed using masked stereolithography (MSLA) 3D printing process, with real-time application of a neodymium magnet-induced magnetic field during photopolymerization—an innovative approach compared to plasma or laser surface treatments used in other studies. Characterizations of the nanorods, photosensitive resin, and nanocomposite, conducted via Fourier-transform infrared spectroscopy, magnetic force microscopy, scanning electron microscopy, and vibrating sample magnetometry, confirmed successful nanocomposite production without compromising printability, enabling a unique nanotextured surface.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00268-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879691","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

A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness 一种同时具有可调热膨胀和高结构刚度的金属玻璃结构设计方法

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-28 DOI: 10.1186/s40712-025-00257-0

Yunhao Zhang, Ye Zhou, Conghao Xu, Jiacheng Zhang, Zhendong Sha

{"title":"A structural design approach toward metallic glass with simultaneous tunable thermal expansion and high structural stiffness","authors":"Yunhao Zhang, Ye Zhou, Conghao Xu, Jiacheng Zhang, Zhendong Sha","doi":"10.1186/s40712-025-00257-0","DOIUrl":"10.1186/s40712-025-00257-0","url":null,"abstract":"<p>Although metallic glasses (MGs) possess relatively low thermal expansion coefficient (<i>α</i>) compared to their crystalline counterparts due to the existence of free volume, their <i>α</i>-values are still too large to meet the demands of practical application. Here, we report that a bi-material structure (BMS) consisting of curved traditional materials (e.g., Al alloy) with MGs can be used to obtain tunable <i>α</i> while maintaining high structural stiffness. The curved Al alloy has a pulling effect on the MGs when the curvature changes, limiting the thermal expansion of MGs. Through the theoretical model and finite element method analysis, it is further found that both <i>α</i> and stiffness can be significantly altered through changing the degree of curvature, the contact surface, and the thickness ratio of MG over Al alloy. The present study not only offers a solution to the <i>α</i> reduction of MGs but also suggests that BMS can be used to design advanced structural materials that possess adjustable <i>α</i> and high stiffness.</p>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00257-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879692","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

Testing of advanced selective black coating in a prototype of solar water heater 先进选择性黑色涂层在太阳能热水器样机上的试验

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-25 DOI: 10.1186/s40712-025-00242-7

M. F. Shaffei, Hala S. Hussein, Ahmed. M. Awad Abouelata, Nagwa M. Khattab

{"title":"Testing of advanced selective black coating in a prototype of solar water heater","authors":"M. F. Shaffei, Hala S. Hussein, Ahmed. M. Awad Abouelata, Nagwa M. Khattab","doi":"10.1186/s40712-025-00242-7","DOIUrl":"10.1186/s40712-025-00242-7","url":null,"abstract":"<div><p>The development of selective coating in solar absorbers is required for higher photothermal energy conservation. Hence, a promising process for producing such an efficient selective coating is the electrolytic coloring of anodized aluminum. It comprises the electrodeposition of tin nanoparticles in the outer porous surface layer of an aluminum strip. In this work, the aluminum surface was anodically anodized in H<sub>2</sub>SO<sub>4</sub> and colored with tin. In the coloring step, tin was electrodeposited from sulfate salt-based electrolyte to give a black layer on the aluminum surface. In this research, the scaling up of an advanced black coating in a prototype of a solar water heater was investigated. Realization of practical heating efficiency is performed by constructing and testing two prototypes of a solar water heater. The tested solar absorber was prepared by electrolytic coloring of anodized aluminum after one step of anodization. The other type is prepared by coloring aluminum strips with commercial black paint for comparison. The highest observed temperature of the outlet water was 82 °C for the anodized type. However, the highest temperature for black paint was 62 °C. Furthermore, at 750 W/m<sup>2</sup> of maximum solar intensity, the black anodized absorber has a higher heating efficiency of 72.3%, while the other kind decreased to 61.3%.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00242-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871329","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

Retrogression and reaging — aluminum alloy AA7012 回退和时效-铝合金AA7012

IF 3.4

International Journal of Mechanical and Materials Engineering Pub Date : 2025-04-24 DOI: 10.1186/s40712-025-00269-w

Luiz Antonio Azevedo Rosa, Luis Rogerio de Oliveira Hein, Marcos Valério Ribeiro

引用次数: 0