International Journal of Mechanical and Materials Engineering最新文献_第8页

Comparative study between properties of composite polymer blend reinforced within two kinds of natural fibers 两种天然纤维增强复合聚合物共混物性能的比较研究

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-11 DOI: 10.1186/s40712-025-00368-8

Huda.M. khdier, Wafaa M. Salih, Ahmed H. Ali, Kater alnada faris Husham

{"title":"Comparative study between properties of composite polymer blend reinforced within two kinds of natural fibers","authors":"Huda.M. khdier, Wafaa M. Salih, Ahmed H. Ali, Kater alnada faris Husham","doi":"10.1186/s40712-025-00368-8","DOIUrl":"10.1186/s40712-025-00368-8","url":null,"abstract":"<div><p>This study aims to evaluate and compare the mechanical performance of hemp and corn husk fibers as natural reinforcements in a polymer blend matrix composed of 80% epoxy and 20% polycarbonate (PC). Composite samples were fabricated using the hand layup technique with varying fiber loadings of 2%, 4%, and 6% for each fiber type. Mechanical characteristics such as impact strength, fracture toughness, and tensile strength, Young’s modulus, and hardness were measured to assess the influence of fiber type and content. Results showed that corn husk fiber composites exhibited superior fracture toughness (up to 120.38 MPa·m^1/2 at 6%) and Young’s modulus (0.97 GPa at 6%) compared to hemp fiber composites, while both showed comparable hardness (77 HRF at 2%). SEM analysis confirmed strong interfacial adhesion between the natural fibers and the polymer matrix. Overall, the study demonstrates that corn husk fibers, despite being underutilized, offer promising reinforcement potential and can outperform conventional hemp fibers in certain mechanical aspects.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00368-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145982688","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

The influence of iodine donor forms on the characteristics of sedimentation-forming AgI-MСM48-MeIx hybrid powders 碘供体形态对沉积形成特性的影响AgI-MСM48-MeIx杂化粉体

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-08 DOI: 10.1186/s40712-025-00377-7

A. S. Averkina, A. Sh. Shamsutdinov, N. B. Kondrashova, I. V. Valtsifer, V. A. Valtsifer, V. N. Strelnikov

{"title":"The influence of iodine donor forms on the characteristics of sedimentation-forming AgI-MСM48-MeIx hybrid powders","authors":"A. S. Averkina, A. Sh. Shamsutdinov, N. B. Kondrashova, I. V. Valtsifer, V. A. Valtsifer, V. N. Strelnikov","doi":"10.1186/s40712-025-00377-7","DOIUrl":"10.1186/s40712-025-00377-7","url":null,"abstract":"<div>\u0000 \u0000 <p>AgI-МСМ48-MeI<sub>x</sub> hybrid powders (HPs) were prepared by the method of Hydrothermal template co-condensation. Silver iodide was always a product of the reaction between silver nitrate and potassium iodide. But metal iodide (copper iodide or zinc iodide) was a native substance or a result of the reaction between metal nitrate and potassium iodide. There were 2 ways to form metal iodides in the reaction solution. The effect of the metal iodide form (nitrate or iodide one) on the structural, textural, morphological, and rheological properties of the HPs has been studied. Much attention was paid to the thermal stability of silver iodide in the hybrids with the introduction of additional iodine donors - copper iodide or zinc iodide (through their nitrate or iodide form). It has been shown that the nitrate form of metal iodide (regardless of the type of cation) makes it possible to preserve the development of the powder agglomerate surface to a greater extent. It is noted that when using zinc iodide as an iodine donor, the amount of silver iodide in the hybrid composition was greater than with copper iodide or in the complete absence of an iodine donor.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00377-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930438","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 comprehensive rheological investigation of gum acacia-grafted-poly(N,N-dimethylacrylamide) hydrogel incorporated with CoFe2O4 nanofillers 含CoFe2O4纳米填料的金合欢胶接枝聚（N，N-二甲基丙烯酰胺）水凝胶的合成及综合流变学研究

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-05 DOI: 10.1186/s40712-025-00349-x

Sanjay Bamaniya, Pallavi Singh, Pragnesh N. Dave

{"title":"Synthesis and comprehensive rheological investigation of gum acacia-grafted-poly(N,N-dimethylacrylamide) hydrogel incorporated with CoFe2O4 nanofillers","authors":"Sanjay Bamaniya, Pallavi Singh, Pragnesh N. Dave","doi":"10.1186/s40712-025-00349-x","DOIUrl":"10.1186/s40712-025-00349-x","url":null,"abstract":"<div><p>The advancement of nanocomposite hydrogels with superior mechanical robustness, tunable swelling, and rheological performance is pivotal for next-generation biomedical and industrial systems. In this work, a novel gum acacia-grafted poly(N,N-dimethylacrylamide) (GA-g-PDMAAm) hydrogel reinforced with cobalt ferrite (CF/CoFe₂O₄) nanofillers was synthesized via free-radical graft copolymerization. CoFe₂O₄ nanoparticles (average crystallite size: 8.32 nm, calcined) were fabricated through chemical co-precipitation and homogeneously embedded into the hydrogel network, imparting enhanced structural integrity, magnetic responsiveness, and thermal stability. FTIR, XRD, FE-SEM, and TGA analyses confirmed efficient grafting, crystalline dispersion, and improved thermal resistance, with weight loss at 450 °C reduced from 72.24 to 59.58% and an onset degradation temperature near 150 °C. Rheological studies revealed shear-thinning pseudoplasticity, storage modulus (G′) dominance over loss modulus (G″) across 0.1–100 rad s⁻<sup>1</sup>, and damping factors (tan δ) below 0.3, indicating elastic-dominated behavior. Thermal sweeps showed modulus stability up to 35 °C, particularly in high CoFe₂O₄-loaded networks. Mechanical testing identified GADMACF-10 as exhibiting maximal shear stress under 25% strain, while swelling capacity increased from 9.78 g g⁻<sup>1</sup> to 13.85 g g⁻<sup>1</sup> (~ 41.6% enhancement) at optimal filler loading (GADMACF-50). These findings position GA-g-PDMAAm/CoFe₂O₄ nanocomposites as multifunctional, mechanically resilient, and highly absorbent materials suited for wound healing, drug delivery, and tissue engineering applications.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00349-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930181","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 the mineralogy, physical and geochemical properties of Kataeregi red anthill clay for industrial applications 工业用卡塔雷吉红蚁丘粘土的矿物学、物理和地球化学性质研究

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-04 DOI: 10.1186/s40712-025-00372-y

Muhammad-Najeeb Oluwafemi Yusuf, Abdulrahman Gbenga Abdulmumin, Ayomide Kayode Adanlawo, Oluwafunmilayo Mary Telejaiye, Israel Sunday Ogbonnaya, Usman Alhaji Idris

{"title":"Investigation of the mineralogy, physical and geochemical properties of Kataeregi red anthill clay for industrial applications","authors":"Muhammad-Najeeb Oluwafemi Yusuf, Abdulrahman Gbenga Abdulmumin, Ayomide Kayode Adanlawo, Oluwafunmilayo Mary Telejaiye, Israel Sunday Ogbonnaya, Usman Alhaji Idris","doi":"10.1186/s40712-025-00372-y","DOIUrl":"10.1186/s40712-025-00372-y","url":null,"abstract":"<div><p>Red anthill clay (RAC) sample from a deposit in Kataeregi, Niger State, Nigeria, was examined for its mineralogical, geochemical, and physicochemical properties, as well as its industrial potentials. The collected sample was prepared and analysed for particle size distribution, moisture content, bulk density, Energy Dispersive X-ray fluorescence (ED-XRF), and X-ray diffractometry (XRD). Results revealed that RAC contains 63.19% silica, and 17.71% alumina, with kaolinite as the dominant clay mineral alongside quartz, feldspar, and goethite. The clay exhibited a bulk density of 1.33 g/cm³ and an apparent porosity of 49.8%, that indicates its high adsorption capacity. Particle size analysis showed 38.7% fines passing through a 0.075 mm sieve. Compressive strength tests on RAC bricks demonstrated increasing strength with curing time (2.09–5.32 MPa for unfired bricks; 8.19–10.35 MPa for fired bricks at 900–1200 ℃), while thermal shock resistance tests indicated durability up to 23–28 cycles at 900–1100 ℃. These properties suggest RAC’s suitability for insulating firebricks, even though its high porosity limits high load-bearing structural applications. Further modifications are needed to enhance performance for broader uses, such as ceramics, refractories, and adsorption-based remediation in contaminated aqueous solutions.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00372-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930175","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

Mechanism of void growth in electroless copper plating layer of microvias in high-density interconnect packaging substrates 高密度互连封装基板微孔化学镀铜层空隙生长机理研究

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-04 DOI: 10.1186/s40712-025-00374-w

Ming-chun Hsieh, Zheng Zhang, Masahiko Nishijima, Rieko Okumura, Hiroki Seto, Hiroshi Nishikawa, Katsuaki Suganuma

{"title":"Mechanism of void growth in electroless copper plating layer of microvias in high-density interconnect packaging substrates","authors":"Ming-chun Hsieh, Zheng Zhang, Masahiko Nishijima, Rieko Okumura, Hiroki Seto, Hiroshi Nishikawa, Katsuaki Suganuma","doi":"10.1186/s40712-025-00374-w","DOIUrl":"10.1186/s40712-025-00374-w","url":null,"abstract":"<div><p>Voids in electroless copper (Cu) plating layers critically influence the reliability of microvias in high-density interconnect (HDI) packaging substrates. This study investigates void formation mechanisms by fabricating multilayered Cu structures that simulate microvia interconnections and performing electroless Cu plating under controlled nickel (Ni) ion concentrations and bath temperatures. Void morphology and distribution are analyzed using transmission electron microscopy (TEM) and quantitative image analysis. The results reveal that increased Ni content and elevated bath temperatures accelerate the plating rate, thereby promoting void formation at the initial stage of deposition. Theoretical analysis suggests that this behavior is driven by surface cohesion forces acting on nascent voids. A void growth mechanism is proposed, wherein voids predominantly originate within the initial Cu layer due to localized hydrogen accumulation near palladium (Pd) catalysts. In contrast, subsequent layers—deposited after Pd sites are buried—exhibit reduced maximum (max.) void sizes and lower void fractions. These findings provide mechanistic insight into void evolution in electroless Cu layers and underscore the critical role of Ni content and bath temperature in enhancing HDI packaging substrate reliability.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00374-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145930174","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

Multi-objective optimization of machining parameters in face milling of AISI 1045 steel to ensure operational continuity AISI 1045钢端面铣削加工参数多目标优化以保证操作连续性

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-12-02 DOI: 10.1186/s40712-025-00362-0

C. S. Sumesh, M Venkata Roshan, Sajith S, Shravan R. N, Dinu Thomas Thekkuden

{"title":"Multi-objective optimization of machining parameters in face milling of AISI 1045 steel to ensure operational continuity","authors":"C. S. Sumesh, M Venkata Roshan, Sajith S, Shravan R. N, Dinu Thomas Thekkuden","doi":"10.1186/s40712-025-00362-0","DOIUrl":"10.1186/s40712-025-00362-0","url":null,"abstract":"<div><p>Tool vibration and acoustic studies in the face milling of AISI 1045 steels are essential for ensuring high-quality surface finishes, prolonging tool life, maintaining machining stability, operational continuity, and optimizing manufacturing efficiency. These studies contribute to better process control, cost savings, and the overall reliability of the machining operations. In this work spindle speed, feed rate, and depth of cut were considered as machining parameters and tool vibration, and acoustics were considered as responses. Three levels for the parameters were selected, and using Minitab 18 software, 27 trials were generated and experiments were carried out to get the responses. Using Abaqus a numerical model was developed to find the modes of natural frequencies. Then Fast Fourier Transforms to convert the vibration and acoustic characteristics from the time domain to the frequency domain to determine the amplitude closest to the natural frequency of tool vibration and acoustic emission. For the multi-objective optimization, Response Surface Methodology was used to get the optimal combination of machining parameters. Confirmation experiments were carried out at the optimal combinations and the model is well validated<i>.</i></p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00362-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145904405","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

Phase stability and tensile properties of metastable β-Ti alloys for orthopedic applications designed using electronic parameters 利用电子参数设计骨科用亚稳β-Ti合金的相稳定性和拉伸性能

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-11-27 DOI: 10.1186/s40712-025-00365-x

Nthabiseng Abigail Moshokoa, Mamookho Elizabeth Makhatha, Lerato Raganya, Nkutwane Washington Makoana, Maje Phasha

{"title":"Phase stability and tensile properties of metastable β-Ti alloys for orthopedic applications designed using electronic parameters","authors":"Nthabiseng Abigail Moshokoa, Mamookho Elizabeth Makhatha, Lerato Raganya, Nkutwane Washington Makoana, Maje Phasha","doi":"10.1186/s40712-025-00365-x","DOIUrl":"10.1186/s40712-025-00365-x","url":null,"abstract":"<div>\u0000 \u0000 <p>The design and development of metastable β-Ti alloys with non-toxic elements that are used in the manufacturing of orthopedic implants are gaining significant research attention. In this work, two metastable β-Ti alloys, binary alloy of Ti-17Mo wt% (referred as Alloy A) and ternary alloy of Ti-16.5Mo-1.1Fe wt% alloy (referred as Alloy B) were designed with different values of electronic parameters such as the Molybdenum equivalence (<i>Moeq</i>), electron to atom ratio (<i>e/a</i>), and the <i>Bo-Md</i>. The contribution of the electronic parameters in influencing the formation of phases and the elastic modulus is discussed. Phase characterization and tensile properties of the alloys after solution treatment at 1100 °C and quenched in ice-brine were carried out using different techniques. The X-ray diffraction (XRD) patterns and optical microscopy (OM) micrographs showed that with increasing <i>e/a</i> ratio the β phase stability increases. EBSD phase maps showed the decrease in the volume fractions of α″and ω phases upon addition of Fe. With increase in stability of β phase, the ultimate tensile strength (UTS) and elastic modulus decreased from 912 MPa to 540 MPa and 82 GPa to 73 GPa in Alloy A and Alloy B, respectively. On the other hand, the increase in the β phase stability resulted in increased hardness from 366 Hv<sub>0.5</sub> for Alloy A to 428 Hv<sub>0.5</sub> in Alloy B. Using scanning electron microscopy (SEM), a combination of cleavage facets and dimpled structure were observered in both alloys.</p>\u0000 </div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00365-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145612546","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 CaCO3 modified epoxy varnishes on curing kinetics and mechanical performance of electrical steel laminates CaCO3改性环氧清漆对电工钢层合板固化动力学和力学性能的影响

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-11-26 DOI: 10.1186/s40712-025-00371-z

Cornelia Marchfelder, Gabriel Riedl, Gernot M. Wallner

{"title":"Effect of CaCO3 modified epoxy varnishes on curing kinetics and mechanical performance of electrical steel laminates","authors":"Cornelia Marchfelder, Gabriel Riedl, Gernot M. Wallner","doi":"10.1186/s40712-025-00371-z","DOIUrl":"10.1186/s40712-025-00371-z","url":null,"abstract":"<div><p>Epoxy coatings for stacked electrical steel are of high relevance for renewable energy and electric mobility technologies. Waterborne epoxy varnish systems for electrical steel laminates are still under development. The main objective of this study was to assess the effect of fillers on the crosslinking kinetics of epoxies and the mechanical performance of electrical steel laminates. Model varnishes based on bisphenol-A diglycidyl ether (DGEBA) with an epoxy equivalent weight (EEW) of ~ 500 g/mol were modified with CaCO<sub>3</sub> fillers. The filler content was ranging from 1 to 20 wt%. The onset of gelation for CaCO<sub>3</sub> modified epoxy varnishes was reduced by up to 5 °C. This effect was primarily attributed to enhanced thermal conductivity and reduced heat capacity. Interestingly, no significant effect on the glass transition temperature of the fully cured epoxy was observable. By mechanical testing of electrical epoxy laminates better roll peel strength values were deduced for laminates with CaCO<sub>3</sub> modified epoxies. Moreover, crack growth rates in the stable regime and the threshold strain energy release rate were positively affected.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00371-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145612506","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

Enhanced supercapacitor performance of BiOI nanoflowers/rGO nanocomposites with GO modified gel electrolyte 氧化石墨烯修饰凝胶电解质增强BiOI纳米花/氧化石墨烯纳米复合材料的超级电容器性能

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-11-25 DOI: 10.1186/s40712-025-00367-9

Nashiruddin Ahammed, Suvamay Pramanik, Priyabrata Maity, Joydeep Chowdhury, Sukanta De

{"title":"Enhanced supercapacitor performance of BiOI nanoflowers/rGO nanocomposites with GO modified gel electrolyte","authors":"Nashiruddin Ahammed, Suvamay Pramanik, Priyabrata Maity, Joydeep Chowdhury, Sukanta De","doi":"10.1186/s40712-025-00367-9","DOIUrl":"10.1186/s40712-025-00367-9","url":null,"abstract":"<div><p>The pure bismuth oxyiodide (BiOI) nanoflower and BiOI/reduced graphene oxide (rGO) nano composites have been prepared via solvothermal route for supercapacitor application.Various mass ratios of BiOI with rGO were incorporated in this study. Additionally, the electrolyte gel was modified with graphene oxide (GO) to investigate the enhancement in supercapacitive charge storage properties. The structural and morphological properties of the pure BiOI nanoflower and BiOI/rGO hybrids were analysed using X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDAX), Transmission Electron microscopy (TEM), N<sub>2</sub> adsorption–desorption isotherms (BET) and X-ray photoelectron spectroscopy (XPS). The electrochemical performances of pure BiOI nanoflower and BiOI/rGO hybrids with different mass ratio were tested by cyclic voltammetry (CV), galvanostatic charge/discharge (GCD) and electrochemical impedance spectroscopy (EIS). The optimal BiOI/rGO hybrid electrode delivered specific capacitance 235 F/g at scan rate 5 mV/s in PVA/H<sub>2</sub>SO<sub>4</sub> gel electrolyte with energy density 8.1 Wh/kg and power density 0.146 kW/kg, also with PVA/H<sub>2</sub>SO<sub>4</sub> + GO gel electrolyte 288 F/g at 5 mV/s scan rate with energy density 10 Wh/kg at power density 0.18 kW/kg. The BiOI/rGO hybrid electrode maintained capacitive retention of 79% and 71% after 10,000 successive CV cycles at scan rate 100 mV/s in PVA/H<sub>2</sub>SO<sub>4</sub> gel and PVA/H<sub>2</sub>SO<sub>4</sub> + GO gel electrolytes respectively.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00367-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145904406","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 characterization of electrospun fiber felts based on a voxelized-dynamic contact coupled model 基于体素化-动态接触耦合模型的电纺纤维毡三维表征

IF 2

International Journal of Mechanical and Materials Engineering Pub Date : 2025-11-24 DOI: 10.1186/s40712-025-00353-1

Yexin Liu, Gaoming Jiang, Bingxian Li, Haisang Liu, Hui Xu, Shukai Tang

{"title":"3D characterization of electrospun fiber felts based on a voxelized-dynamic contact coupled model","authors":"Yexin Liu, Gaoming Jiang, Bingxian Li, Haisang Liu, Hui Xu, Shukai Tang","doi":"10.1186/s40712-025-00353-1","DOIUrl":"10.1186/s40712-025-00353-1","url":null,"abstract":"<div><p>Electrospun fiber mats, as a class of high-performance nonwoven materials, are widely applied in textiles, filtration, medical, and other fields. However, the precise three-dimensional characterization of their microstructure and quantification of volume fraction face challenges such as low resolution, poor computational efficiency, and reliance on expensive experimental imaging. This study aims to develop a computer modeling method independent of experiments, achieving high-precision reconstruction and performance prediction of fiber mats. Methodologically, by simulating the electrospinning deposition process, a parameterized deposition model is constructed, and a solvent-orientation coupled dynamic contact model is proposed, which integrates solvent residual concentration with von Mises orientation distribution and quantifies fiber cross-penetration behavior through adhesion offset equations. The main work includes developing an efficient voxelization algorithm that analyzes fiber-voxel interactions via multi-level detection (center point-corner point-ray penetration) and tolerance compensation mechanisms, enabling rapid calculation of volume fraction. Experimental results demonstrate that the error rate of this method is below 2%, and it remains robust in high fiber density scenarios. This model not only provides a high-precision tool for studying the relationship between microstructure and performance of electrospun materials but can also be extended to multi-process parameter optimization and multi-scale performance prediction, thereby promoting the intelligent design and application of nonwoven materials.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s40712-025-00353-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145612720","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