International Journal of Mechanical and Materials Engineering最新文献

{"title":"Environmentally friendly inorganic lubricating greases enhanced with modified bentonite clay for improved performance and sustainability in the engine industry","authors":"Mustafa G. Hasan,&nbsp;Bashir Y. Al-Zaidi,&nbsp;Zaidoon M. Shakor,&nbsp;Emad N. Al-Shafei","doi":"10.1186/s40712-025-00358-w","DOIUrl":"10.1186/s40712-025-00358-w","url":null,"abstract":"<div><p>The rapid demands of the engine industry for greases that can perform under a wide range of operating conditions focused on developing environmentally friendly, inorganic lubricating greases free from soap-based components. Utilizing bentonite clay as an innovative porous thickener, combined with two base oils blend with soft and hard paraffin wax additives, seeks to economically synthesize greases that are versatile and suitable for a wide range of service conditions. Acid post-treatment of raw bentonite was undertaken to activate the bentonite clay and alter its surface from hydrophilic to organophilic, enhancing its dispersion in organic base oil. The activated bentonite exhibited significant modifications in surface area, porosity, and crystal morphology, which directly influenced the grease's physical properties and performance. Notably, activated bentonite treated by nitric acid showed superior efficacy in homogeneously integrating with both base oil types and paraffin waxes compared to other acid post-treatments, producing greases with higher dropping points similar to lithium complex and organic clay grease, lower working penetrations as normal grease as classified by National Lubricating Grease Institute (NLGI) consistency grade. This study contributes to the development of inorganic grease formulations by systematically evaluating the rheological and thermal performance of modified bentonite. On the other hand, it highlights the flexibility of modified bentonite as a universal thickener for lubricating greases, demonstrating its efficiency as a multifunctional thickener that meets the evolving demands of various industrial engines.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00358-w","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145456110","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}

{"title":"Mechanical properties and corrosion behavior of TiNbZrMoV high-entropy-alloy","authors":"Kamran Dehghani,&nbsp;Mehrangiz Rajabi,&nbsp;Hamed Shahmir","doi":"10.1186/s40712-025-00345-1","DOIUrl":"10.1186/s40712-025-00345-1","url":null,"abstract":"<div><p>Ti6Al4V and 316L stainless steel alloys have been extensively utilized as conventional implant materials. However, there are always concerns regarding the biocompatibility of these alloys. Recently, high-entropy alloys have been introduced as new biomaterials due to their unique properties. In this investigation, a Ti₃₅Nb₂₅Zr₁₅Mo₁₅V₁₀ bio-high entropy alloy was developed utilizing thermodynamically parameters and calculations to fabricate a high efficiency biomaterial. Microstructural evolutions were characterized using X-ray diffraction (XRD), scanning electron microscope as well as energy-dispersive X-ray spectroscopy (EDS) techniques. Studies conducted on this alloy demonstrated the formation of a BCC solid solution without the presence of any intermetallic compounds. The results showed that the developed high entropy alloy exhibited the lowest elastic modulus compared to the control samples, which was reported as 115 GPa. The results of the nano-scratch test indicated a lower scratch depth and friction coefficient compared to the control samples for the bio-high entropy alloy. In addition, the Ti₃₅Nb₂₅Zr₁₅Mo₁₅V₁₀ alloy exhibited lower corrosion rate in three environments of PBS, NaCl, and H₂SO₄, in comparison to the control samples. The results of the shear punch test suggested better mechanical properties of the studied bio-high entropy alloy compared to the control samples. Overall, the investigation regarding the mechanical properties, corrosion resistance, and wear characteristics showed that the developed Ti₃₅Nb₂₅Zr₁₅Mo₁₅V₁₀ alloy has the significant potential to be used as a new metallic biomaterial, serving as a substitute for conventional Ti6Al4V and 316L SS alloys.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00345-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145456111","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}

{"title":"Preparation and optimization of capillary wick vapor chamber using copper paste based on capillary suspension","authors":"Zhiqian Yang,&nbsp;Kaixiang Hu,&nbsp;Rongsong Ge,&nbsp;Chaomin Chen,&nbsp;Tingting Jin,&nbsp;Guoqiang Ma,&nbsp;Yizhan Chen","doi":"10.1186/s40712-025-00359-9","DOIUrl":"10.1186/s40712-025-00359-9","url":null,"abstract":"<p>To address the overheating issues in high-power integrated circuits, this article introduced a copper paste based on the capillary suspension which was printed on the vapor chamber. Research has shown that the addition of secondary fluid significantly changes the rheological properties of the paste. These rheological properties further influence the \"boat-shaped\" structure of the wick within the flow channel region. The article uses the capillary characteristic parameter (<i>ΔP</i>_<i>cap</i> × <i>K</i>) to comprehensively consider capillary performance, with a maximum value of 1.349 × 10^–8 N, allowing the working fluid to overcome gravity and climb vertically 49 mm in just 5 s, demonstrating optimal comprehensive performance. The heat transfer test results of the vapor chamber show that the low starting power is 2 W and the maximum heat transfer power is 7 W. At maximum heat transfer power, the minimum temperature difference achieved is only 1.62°C, with a corresponding minimum thermal resistance of just 0.231°C/W, significantly outperforming pure copper plates of the same dimensions and thickness in heat transfer performance. This further demonstrates that the new copper electronic paste prepared based on capillary suspension possesses excellent application performance.</p>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00359-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145456115","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}

{"title":"Adsorption of cadmium from aqueous solutions using Moringa oleifera kraft pulp microfibers functionalized with iron oxide nanoparticles","authors":"Adriana Villa Rodríguez,&nbsp;Raúl Cortés Martínez,&nbsp;Adriana Vázquez Guerrero,&nbsp;E. M. Rivera-Muñoz,&nbsp;Rafael Huirache Acuña","doi":"10.1186/s40712-025-00337-1","DOIUrl":"10.1186/s40712-025-00337-1","url":null,"abstract":"<div><p>This study evaluated microfibrillated adsorbents obtained from kraft pulp (PC) cellulose of <i>Moringa oleifera (M. oleifera).</i> In this research, Cd (II) adsorption was evaluated on unmodified microfibrillated cellulose (PMC) and hematite-modified microfibers (SN-PMC) on kraft pulp as starting material cooked for 10 min. This cellulose pulp as a starting material was also used in a previous work from our research group but with a 20-min pulping cooking to obtain a composite of nanofibers and maghematite, obtaining less favorable results in terms of cadmium adsorption capacity, with a qt = 12 mg/g. </p><p>PMC and SN-PMC were characterized by SEM–EDS, XRD, zeta potential and FTIR. The experimental kinetic and equilibrium results on PMC and SN-PMC were modeled, obtaining a pseudo-first-order kinetic fit result on SN-PMC and an Elovich approach on the PMC adsorbent. Regarding the equilibrium in both materials, the adsorption isotherms were fitted to the Langmuir model. The maximum adsorption capacities (Qo) were 27.3 mg/g and 33.8 mg/g for PMC and SN-PMC, respectively, obtained from isothermal data at 25 °C and pH 5, which were the conditions with the highest adsorption in isotherms. The main adsorption mechanism is chemisorption; however, it was concluded that SN-PMC was dominated by physisorption and chemisorption, which gives rise to a hybrid mechanism. On the other hand, both adsorbents presented spontaneous and exothermic process. These materials, especially SN-PMC, have potential in the removal of cadmium from industrial effluents. Their low cost, biocompatibility, and efficiency can contribute to the development of sustainable adsorbents, with the role of iron oxide highlighted in the removal. Future research could evaluate the material to improve its adsorption capacity in multicomponent mixtures or evaluate its regeneration and reuse.</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":2.0,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00337-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145456162","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}

{"title":"Temperature-dependent conduction and optical bandgap reduction in Zn-doped thermally evaporated Sb2Se3 thin film: a comprehensive investigation","authors":"Nargis Fatima Khatoon,&nbsp;Zubair Aslam,&nbsp;Mohd Shoab,&nbsp;Javid Ali,&nbsp;Mohammad Zulfequar","doi":"10.1186/s40712-025-00291-y","DOIUrl":"10.1186/s40712-025-00291-y","url":null,"abstract":"<div><p>In this manuscript, we report successful synthesis and investigation of structural, morphological, electrical, and optical properties of doped and undoped Sb₂Se₃. A significant enhancement in electrical and optical properties of Zn-doped Sb₂Se₃ is observed. The temperature dependence of direct current (dc) conductivity has been investigated in thin films of Sb₂Zn_xSe_3-x (where <i>x</i> = 0 and <i>x</i> = 0.25) in the temperature range of 290–490 K to determine the conduction mechanism and examine the effects of doping. It shows that, in the temperature range (343–490 K), conduction is primarily due to thermally activated tunneling of charge carriers through the band tails of localized states. In the lower temperature range 293–343 K, conduction occurs via variable range hopping in the localized states near the fermi level. The decrease in the optical bandgap value as a result of Zn doping in Sb₂Se₃ has been correlated with the variation in density of states, increased electron–phonon interaction and steepness parameter.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00291-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145456160","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}

{"title":"Simulating a fall system to support the adjustment of plastic injection molds","authors":"F. C. Batista,&nbsp;R. Ribeiro,&nbsp;P. G. Martinho,&nbsp;C. C. Sousa","doi":"10.1186/s40712-025-00338-0","DOIUrl":"10.1186/s40712-025-00338-0","url":null,"abstract":"<div><p>Adjusting the contact surfaces, or interferences, in an injection mold is a critical process that can affect the performance of the mold and the quality of the molded parts. This process often involves high impact loads, especially for large molds that involve large masses of inertia in motion and generate significant kinetic energy during mold closure. Impact forces can propagate through the mold structure causing damage to the tool, mold, or even the injection equipment where the mold is placed, causing operational errors due in particular to system vibrations. This study evaluates impact forces during mold closure using numerical simulations in ANSYS, focusing on the mold’s fixed part and its support structure. Results demonstrate that integrating energy-absorbing elements significantly reduces transmitted impact energy without compromising stability. This approach enhances safety and efficiency by minimizing vibrations and protecting machinery.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00338-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145406169","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}

{"title":"An analytical approach to study the mechanical and temperature resistance of Cr2C3 reinforced with cobalt-based advanced composite coatings on Inconel 713 substrate","authors":"Piyush Kumar Soni,&nbsp;Amit Tiwari,&nbsp;S. N. V. J. Devi Kosuru,&nbsp;S. Dhandapani,&nbsp;R. Suresh Kumar,&nbsp;Khemraj Deshmukh,&nbsp;B. Srinivasulu,&nbsp;Rajeev Shrivastava,&nbsp;C. Durga Prasad,&nbsp;Nimona Hailu","doi":"10.1186/s40712-025-00339-z","DOIUrl":"10.1186/s40712-025-00339-z","url":null,"abstract":"<div><p>This research presents a wide mathematical framework for modeling, developing, and optimizing the pressure vessels in hydrogen storage tanks using state-of-the-art solid materials. The emphasis is on metal hybrid storage tanks because these systems have been extensively studied from an experimental and theoretical perspective in the literature, and if the current R&amp;D efforts are successful in bringing the required technology to market, they should offer several advantages. It is found that better cooling is essential during the hydrogen filling process of the storage tank in order to shorten the time required for hydrogen storage. CoMoCrSi + Cr₂C₃ material comprised the inner layer of the pressure vessel, while Inconel 713 made up the exterior layer. Their thicknesses were 10 mm and 8 mm, respectively. The pressure vessel’s response to various conditions could be assessed through static structural analysis in Ansys Workbench. This particular study aimed at investigating whether a square sample had met the requirements of storing hydrogen gas. Promising results indicate that the multi-layered design used for the pressure vessel is well-suited for hydrogen storage. This may be deduced from its ability to withstand pressure and maintain structural integrity, and this exceeds what other cylinder materials can do. Through sophisticated modeling tools and advanced materials science, this project demonstrates how improvements in hydrogen storage technology can contribute to sustainable energy development.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00339-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145406191","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}

{"title":"Optimization of palm oil bleaching with Anfoega kaolin clay: a local solution","authors":"Johannes Ami,&nbsp;Richmond N. A. Nubuor,&nbsp;Raphael Odai,&nbsp;Bright Larbi Asante,&nbsp;Isaac K. Frimpong,&nbsp;Beatrice Borkor","doi":"10.1186/s40712-025-00278-9","DOIUrl":"10.1186/s40712-025-00278-9","url":null,"abstract":"<div><p>The bleaching properties of locally acid-activated Anfoega kaolin clays have been studied to investigate their applicability as a substitute for the expensive imported acid-activated bleaching clays used in vegetable oil refinery industries in Ghana. The clay was characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrophotometer, and scanning electron microscopy (SEM). The bleaching properties of the clay were investigated by varying the clay dosage, acid concentration, and bleaching temperature. Activation of the Anfoega kaolin clay at 100 °C and 2.5 h with constant stirring was found to be optimum conditions of temperature and contact time, respectively. The clay/acid ratio was found not to significantly affect the clay properties. Palm oil was used to investigate the bleaching performance of the activated clay samples. When the oil was bleached at 90 °C for 30 min using 10% wt/vol of oil, clay activated with 2 mol/L H₂SO₄, the bleaching performance obtained was up to 94.54%. Response surface plot methodology revealed that the optimal bleaching conditions were achieved with a clay dosage of 10 g, a temperature range of 70 to 120 °C, and a bleaching duration of 60 min resulting in a bleaching efficiency of 81%.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00278-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145405583","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}

{"title":"A review on the environment’s influence on coastal marine steel corrosion and in-situ monitoring","authors":"Christos Kassinis,&nbsp;Lazaros Aresti,&nbsp;Marios Koronides,&nbsp;Paul Christodoulides,&nbsp;Constantine Michailides,&nbsp;Toula Onoufriou","doi":"10.1186/s40712-025-00352-2","DOIUrl":"10.1186/s40712-025-00352-2","url":null,"abstract":"<div><p>Marine corrosion is a critical subject that holds substantial importance from multiple perspectives, including engineering design, structural safety, and economic sustainability. The harsh marine environment presents unique challenges, as the interaction between steel structures and corrosive elements can lead to significant degradation over time, impacting the performance, reliability, and longevity of critical infrastructure. Understanding the mechanisms and effects of marine corrosion is essential for optimizing design strategies, ensuring safety, and reducing unnecessary costs associated with over-engineering or premature failures. This study seeks to contribute to this understanding by comprehensively reviewing and synthesizing the current body of knowledge available in the literature. It examines the key factors influencing corrosion in marine environments, such as salinity, temperature, and biofouling, and explores their specific effects on steel structures commonly used in marine applications. Additionally, the study highlights the importance of field monitoring techniques, providing an overview of methodologies used to observe and measure corrosion rates in real-world conditions. These techniques are crucial for capturing the dynamic and complex nature of marine corrosion processes and for developing realistic models to predict long-term impacts.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00352-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145405582","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}

{"title":"Silica nanoparticles from agave distillate for the removal of the Methylene Blue dye from water","authors":"N. Elizondo Villarreal,&nbsp;E. Gandara Martinez,&nbsp;Eduardo Perez Tijerina,&nbsp;Francisco Vazquez Rodriguez,&nbsp;F. Paraguay Delgado","doi":"10.1186/s40712-025-00322-8","DOIUrl":"10.1186/s40712-025-00322-8","url":null,"abstract":"<div><p>This study explores the synthesis of SiO₂ nanoparticles using Agave distillate as a natural capping, reducing, and stabilizing agent and investigates their application in methylene blue (MB) dye removal from water. The synthesized nanoparticles demonstrated significant adsorption of MB without the need for UV light, highlighting their suitability for sustainable water treatment. Structural characterization through X-ray diffraction (XRD) confirmed an amorphous silica structure, with a peak at 2θ = 24°, consistent with high-purity SiO₂. Transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX) further verified the nanoparticles’ morphology and purity, showing only silicon and oxygen elements. Adsorption tests revealed an increase in MB adsorption efficiency with higher SiO₂ dosages: 10 mg, 50 mg, and 100 mg of nanoparticles resulted in 28%, 49%, and 86% adsorption within 5 min, respectively. This efficiency is largely due to the electrostatic attraction between the negatively charged SiO₂ surface and the cationic MB molecules, facilitating adsorption and subsequent adsorption. By using Agave distillate in the synthesis process, this approach avoids hazardous chemicals, supporting eco-friendly practices. The findings underscore the potential of SiO₂ nanoparticles for sustainable water treatment applications that are both effective and environmentally benign.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00322-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352841","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}