Materials最新文献_第9页

Compressive Behavior of Fully Grouted Concrete Bond Beam Block Masonry Prisms. 全灌浆混凝土粘结梁砌块砌体柱的抗压性能。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112589

Fei Zhu, Yongcheng Hang, Fenglai Wang, Shengbao Wang

{"title":"Compressive Behavior of Fully Grouted Concrete Bond Beam Block Masonry Prisms.","authors":"Fei Zhu, Yongcheng Hang, Fenglai Wang, Shengbao Wang","doi":"10.3390/ma18112589","DOIUrl":"10.3390/ma18112589","url":null,"abstract":"This paper presents a study on the uniaxial compressive behavior of fully grouted concrete bond beam block masonry prisms. A total of 45 (i.e., 9 hollow and 36 fully grouted) specimens were tested, and the failure modes and initial crack were reported. The effects of block strength, grout strength, and loading scheme on the compressive strength of the fully grouted prism were discussed. The results show that the compressive strength of bond beam block prisms increased with an increase in grouting, while they were less affected by the block strength; the peak strength of the grouted block masonry was, on average, 35.1% higher than the hollow masonry prism. In addition, although the specimens' strength was lower under cyclic compression than under monotonic compression loading, the difference in their specified compressive strength was statistically insignificant. The stress-strain curve of block masonry under uniaxial compression was also obtained. Through nonlinear fitting, the compressive stress-strain relationship of grouted masonry, considering masonry strength parameters, was established, which demonstrated alignment with prior experimental studies. This study not only provides a strength calculation method for grouted masonry structures using high-strength blocks in the code for the design of masonry structures in China but also offers a dedicated stress-strain curve for precise finite element analysis and the design of masonry structures.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12155600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calcium Phosphate Honeycomb Scaffolds with Tailored Microporous Walls Using Phase Separation-Assisted Digital Light Processing. 使用相分离辅助数字光处理的定制微孔壁磷酸钙蜂窝支架。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112587

Gyu-Nam Kim, Jae-Hyung Park, Jae-Uk Song, Young-Hag Koh, Jongee Park

{"title":"Calcium Phosphate Honeycomb Scaffolds with Tailored Microporous Walls Using Phase Separation-Assisted Digital Light Processing.","authors":"Gyu-Nam Kim, Jae-Hyung Park, Jae-Uk Song, Young-Hag Koh, Jongee Park","doi":"10.3390/ma18112587","DOIUrl":"10.3390/ma18112587","url":null,"abstract":"The present study reports on the manufacturing of biphasic calcium phosphate (BCP) honeycomb scaffolds with tailored microporous walls using phase separation-assisted digital light processing (PS-DLP). To create micropores in BCP walls, camphene was used as the pore-forming agent for preparing BCP suspensions, since it could be completely dissolved in photopolymerizable monomers composed of triethylene glycol dimethacrylate (TEGDMA) and polyethylene glycol diacrylate (PEGDA) and then undergo phase separation when placed at 5 °C. Therefore, solid camphene crystals could be formed in phase-separated BCP layers and then readily removed via sublimation after the photopolymerization of monomer networks embedding BCP particles by DLP. This approach allowed for tight control over the microporosity of BCP walls by adjusting the camphene content. As the camphene content increased from 40 to 60 vol%, the microporosity increased from ~38 to ~59 vol%. Consequently, the overall porosity of dual-scale porosity scaffolds increased from ~51 to ~67 vol%, while their compressive strength decreased from ~70.4 to ~13.7 MPa. The mass transport ability increased remarkably with an increase in microporosity.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12156452/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inverse Neural Network Approach for Optimizing Chemical Composition in Shielded Metal Arc Weld Metals. 基于逆神经网络的金属保护弧焊化学成分优化方法。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112592

Taehyun Yoon, Young Il Park, Jaewoong Kim, Jeong-Hwan Kim

{"title":"Inverse Neural Network Approach for Optimizing Chemical Composition in Shielded Metal Arc Weld Metals.","authors":"Taehyun Yoon, Young Il Park, Jaewoong Kim, Jeong-Hwan Kim","doi":"10.3390/ma18112592","DOIUrl":"10.3390/ma18112592","url":null,"abstract":"This study presents a hybrid machine learning framework combining an artificial neural network and a genetic algorithm to optimize chemical compositions of shielded metal arc weld metals for achieving targeted mechanical properties. First, a neural network model was trained using a large experimental database provided by Dr. Glyn M. Evans, which includes the chemical compositions and mechanical properties of over 950 shielded metal arc weld metals. The neural network model, optimized via Bayesian optimization, demonstrated high predictive accuracy for properties such as yield strength, ultimate tensile strength, and Charpy impact transition temperatures. To enable inverse design, a genetic algorithm-based optimization was applied to the trained neural network model, iteratively exploring the composition space to find optimal elemental combinations that match predefined mechanical property targets. The proposed hybrid approach successfully identified multiple feasible compositions that closely match the desired mechanical behavior, demonstrating the potential of neural network-assisted inverse design in welding alloy development.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12155724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-Term Behavior and Microstructure of High-Performance Concrete with Coal Slag. 掺煤渣高性能混凝土的长期性能与微观结构。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112585

Piotr Smarzewski

{"title":"Long-Term Behavior and Microstructure of High-Performance Concrete with Coal Slag.","authors":"Piotr Smarzewski","doi":"10.3390/ma18112585","DOIUrl":"10.3390/ma18112585","url":null,"abstract":"Recycling in the construction industry is a necessity, not just a fashionable trend in scientific research. The use of coal slag aggregates in concrete means a significant reduction in environmental footprint and should be a priority. For these reasons, this study presents tests of the physical and mechanical properties of high-performance concrete (HPC) with coal slag (CS) used as a replacement for natural coarse aggregate in the amounts of 10%, 20%, and 30% after a long curing time. The investigation determined the porosity, water absorption, density, compressive strength, flexural strength, tensile splitting strength, modulus of elasticity, and ultrasonic pulse velocity (UPV), and analyzed HPC microstructure at 28, 56 days, as well as 2 years of maturation. The use of coal slag resulted in significant increases in compressive strength, flexural strength, and tensile splitting strength compared to reference concrete. However, for HPC with CS, a slight decrease in the elastic modulus and UPV was obtained. The SEM analysis showed a very good adhesion of the cement paste to the slag aggregate. In general, research shows that it is possible to obtain durable high-performance concrete with a 30% replacement of natural aggregate by coal slag.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12155960/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Compression Mechanical Behavior of Three-Dimensional Chiral Mechanical Metamaterials: Effects of Geometric Parameters and Size. 三维手性机械超材料的动态压缩力学行为：几何参数和尺寸的影响。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112584

Shidi Qin, Zhenyang Huang, Weidong Cao, Xiaofei Cao, Yongshui Lin

{"title":"Dynamic Compression Mechanical Behavior of Three-Dimensional Chiral Mechanical Metamaterials: Effects of Geometric Parameters and Size.","authors":"Shidi Qin, Zhenyang Huang, Weidong Cao, Xiaofei Cao, Yongshui Lin","doi":"10.3390/ma18112584","DOIUrl":"10.3390/ma18112584","url":null,"abstract":"The coupled compression-torsion effects of three-dimensional chiral mechanical metamaterials have attracted widespread attention from researchers in recent years. However, the deformation rules and mechanisms through which geometric parameters and size affect their quasi-static and low-speed dynamic compression behavior are still unclear. This paper numerically investigates the quasi-static and low-speed dynamic compression mechanical behavior of three-dimensional chiral mechanical metamaterials, and the effects of geometric parameters and size are discussed. The numerical results are validated by their comparison with the experimental data. The testing results indicate that the geometric parameters as well as number of arrays in different directions have a significant effect on the quasi-static and dynamic compression twist angle per axial strain and the effective modulus. Interestingly, the values of the twist angle per axial strain under static and dynamic compression are almost the same under the same strain, but the effective modulus decreases more sharply under dynamic loading conditions, which may be due to inertia. Our work elucidates the mechanism through which geometric parameters and size affect the quasi-static and dynamic deformation behavior of three-dimensional chiral mechanical metamaterials, which provides design references for their practical engineering applications.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12156410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mg-Zn-Ca Alloy with Ultra-High Ductility and Strength Processed by Screw Rolling. 超高延展性、超高强度的Mg-Zn-Ca合金。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112586

Haoran Zheng, Weitao Sun, Lijun Deng, Li Zhao, Kwang Seon Shin, Jian Zhang

{"title":"Mg-Zn-Ca Alloy with Ultra-High Ductility and Strength Processed by Screw Rolling.","authors":"Haoran Zheng, Weitao Sun, Lijun Deng, Li Zhao, Kwang Seon Shin, Jian Zhang","doi":"10.3390/ma18112586","DOIUrl":"10.3390/ma18112586","url":null,"abstract":"Mg alloys are highly attractive for biodegradable surgical clips because of their low density and good biocompatibility; however, their limited strength and ductility restrict their widespread application. To overcome this limitation, this study employed screw rolling (SR) to produce a Mg-3Zn-0.2Ca alloy with a fine microstructure and an average grain size of 1.6 µm. Experimental results showed that the SR process improved the comprehensive tensile properties of the alloy, increasing the yield strength, ultimate tensile strength, and elongation from 192.6, 234.4 MPa, and 21.7% for the pre-extruded alloy to 252.3, 289 MPa, and 39.5%, respectively. Quantitative analysis of the strengthening behaviour identified grain refinement as the primary strengthening mechanism, along with considerable contributions from Orowan and dislocation strengthening. The ultra-high-tensile ductility was primarily attributed to the low internal stress, nano-sized precipitates, texture weakening, and activation of multiple slip systems. These findings provide a strategy for simultaneously increasing the ductility and strength of Mg alloys and lay a foundation for applying them as biodegradable clips.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12155968/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","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 Porous Polymers by Nucleophilic Substitution Reaction of Polyamines and Monochlorotriazinyl-β-Cyclodextrin and Application to Dye Adsorption. 多胺与一氯三嗪基-β-环糊精亲核取代反应合成多孔聚合物及其在染料吸附中的应用。

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112588

Naofumi Naga, Risa Hiura, Tamaki Nakano

{"title":"Synthesis of Porous Polymers by Nucleophilic Substitution Reaction of Polyamines and Monochlorotriazinyl-β-Cyclodextrin and Application to Dye Adsorption.","authors":"Naofumi Naga, Risa Hiura, Tamaki Nakano","doi":"10.3390/ma18112588","DOIUrl":"10.3390/ma18112588","url":null,"abstract":"Network polymers with β-cyclodextrin moieties were prepared by nucleophilic substitution reactions between polyamines, linear polyethyleneimine (LPEI), polyallylamine (PAA), (ε-poly-L-lysine) (EPL), and monochlorotriazinyl-β-cyclodextrin (MCTCD) in methanol/water mixed solvent or water. The reactions under conditions of high material concentration (30 wt%) and a feed ratio of [MCT]/[NH] = 0.5 (mol/mol) successfully yield porous polymers via reaction-induced phase separation. The molecular structure of the polyamines and reaction conditions strongly affected the morphology of the resulting porous polymers. The porous polymers were composed of connected particles, gathered (slightly connected) particles, and/or disordered bulky structures, with sizes of 10-9 m-10-8 m. An increase in the molecular weight of LPEI and PAA and the feed molar ratio of [MCT]/[NH] tended to decrease the particle size. Young's moduli of the LPEI-MCTCD and PAA-MCTCD porous polymers increased with an increase in bulk density, which was derived from small particle sizes. The wide particle size distribution and disordered structure caused collapse by the compression under 50 N of pressure. An LPEI-MCTCD adsorbed methyl orange, methylene blue, and phenolphthalein through ionic interactions, π-π interaction, and/or β-cyclodextrin inclusion.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12155709/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the Drone Arm's Plastic-Metal Joint Mechanical Resistance Following Natural and Artificial Aging of the 3D-Printed Plastic Component. 3d打印塑料部件自然和人工老化后无人机臂塑料-金属关节机械阻力评估

IF 3.1 3区材料科学

Materials Pub Date : 2025-06-01 DOI: 10.3390/ma18112591

Miloš R Vasić, Snežana Vučetić, Vesna Miljić, Miloš Vorkapić, Anja Terzić, Mladen Ćosić, Danica M Bajić

{"title":"Assessment of the Drone Arm's Plastic-Metal Joint Mechanical Resistance Following Natural and Artificial Aging of the 3D-Printed Plastic Component.","authors":"Miloš R Vasić, Snežana Vučetić, Vesna Miljić, Miloš Vorkapić, Anja Terzić, Mladen Ćosić, Danica M Bajić","doi":"10.3390/ma18112591","DOIUrl":"10.3390/ma18112591","url":null,"abstract":"As drone technologies advance, there is an increasing need for structural components that are lightweight, durable, and easily replaceable. Additive manufacturing (AM) with PLA offers a cost-effective solution to improve mechanical performance, especially when enhanced with embedded metal inserts. However, the long-term durability of PLA-metal joints under environmental aging conditions remains underexplored. This study evaluates the mechanical integrity of 3D-printed PLA drone arms produced with reduced infill density with embedded brass inserts. To replicate realistic service conditions, the samples underwent natural aging and five artificial aging protocols involving thermal cycling, humidity, UV/IR exposure, and freeze-thaw cycles. Mechanical performance was assessed through pull-out and tensile strength testing, supported by FTIR spectroscopy, colorimetric, wettability analysis, and finite element modeling. Notably, to our knowledge, wettability analysis has not previously been applied to this type of material, and metal-plastic contact zones have not been tested under such comprehensive aging protocols. Results showed a 70% reduction in pull-out strength under harsh conditions, though the joints remained functional. Numerical modeling confirmed that stress concentration begins on the inner side of the arm. With optimal print settings, the arm can support a 2.31 kg payload (20% confidence), while the metal inserts withstand up to 17.9 kg.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12156079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of PBO-FRCM Composite Mesh Anchorage on the Strengthening Effectiveness of Reinforced Concrete Slabs. PBO-FRCM复合网锚固对钢筋混凝土板加固效果的影响

IF 3.1 3区材料科学

Materials Pub Date : 2025-05-31 DOI: 10.3390/ma18112583

Filip Grzymski, Tomasz Trapko, Michał Musiał

{"title":"Influence of PBO-FRCM Composite Mesh Anchorage on the Strengthening Effectiveness of Reinforced Concrete Slabs.","authors":"Filip Grzymski, Tomasz Trapko, Michał Musiał","doi":"10.3390/ma18112583","DOIUrl":"10.3390/ma18112583","url":null,"abstract":"FRCM (Fabric-Reinforced Cementitious Matrix) composites, while providing an effective alternative to FRP (Fiber-Reinforced Polymer) strengthening systems when epoxy resins cannot be used, typically fail to achieve their full strengthening potential. Research indicates that appropriate mesh anchorage systems can minimize some of the undesirable effects that limit FRCM composite performance. This study investigates the effectiveness of different anchorage systems for PBO (p-Phenylene Benzobis Oxazole) fibers in FRCM composites used for strengthening reinforced concrete slabs. A series of unidirectionally bent RC slabs were tested under four-point bending: an unstrengthened control element, slabs strengthened with PBO-FRCM without anchorage, with bar anchorage (GFRP bar in a groove), and with cord anchorage (PBO cord through the slab). The research focused on analyzing the load-deflection behavior and key strain mechanisms that influence structural performance. The findings indicate that a single layer of PBO-FRCM increases bending capacity, raises yield load, and delays initial cracking. Most significantly, the research reveals substantial differences in composite mesh utilization efficiency. This study confirms that mechanical anchorage, particularly bar anchorage, significantly enhances the effectiveness of PBO-FRCM strengthening systems by delaying composite detachment and allowing for greater utilization of the high-strength fiber material. These results contribute valuable insights for RC slabs using FRCM composite systems and the anchorage of their mesh.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12156060/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monte Carlo and Machine Learning-Based Evaluation of Fe-Enriched Al Alloys for Nuclear Radiation Shielding Applications. 基于蒙特卡罗和机器学习的富铁铝合金核辐射屏蔽性能评价。

IF 3.1 3区材料科学

Materials Pub Date : 2025-05-31 DOI: 10.3390/ma18112582

Sevda Saltık, Ozan Kıyıkcı, Türkan Akman, Erdinç Öz, Esra Kavaz Perişanoğlu

{"title":"Monte Carlo and Machine Learning-Based Evaluation of Fe-Enriched Al Alloys for Nuclear Radiation Shielding Applications.","authors":"Sevda Saltık, Ozan Kıyıkcı, Türkan Akman, Erdinç Öz, Esra Kavaz Perişanoğlu","doi":"10.3390/ma18112582","DOIUrl":"10.3390/ma18112582","url":null,"abstract":"This study presents a hybrid computational investigation into the radiation shielding behavior of Fe-enriched Al-based alloys (Al-Fe-Mo-Si-Zr) for potential use in nuclear applications. Four alloy compositions with varying Fe contents (7.21, 6.35, 5.47, and 4.58 wt%) were analyzed using a combination of Monte Carlo simulations, machine learning (ML) predictions based on multilayer perceptrons (MLPs), EpiXS, and SRIM-based charged particle transport modeling. Key photon interaction parameters-including mass attenuation coefficient (MAC), half-value layer (HVL), buildup factors, and effective atomic number (Zeff)-were calculated across a wide energy range (0.015-15 MeV). Results showed that the 7.21Fe alloy exhibited a maximum MAC of 12 cm2/g at low energies and an HVL of 0.19 cm at 0.02 MeV, indicating improved gamma attenuation with increasing Fe content. The ML model accurately predicted MAC values in agreement with Monte Carlo and XCOM data, validating the applicability of AI-assisted modeling in material evaluation. SRIM calculations demonstrated enhanced charged particle shielding: the projected range of 10 MeV protons decreased from ~55 µm (low Fe) to ~50 µm (high Fe), while alpha particle penetration reduced accordingly. In terms of fast neutron attenuation, the 7.21Fe alloy reached a maximum removal cross-section (ΣR) of 0.08164 cm-1, showing performance comparable to conventional materials like concrete. Overall, the results confirm that Fe-rich Al-based alloys offer a desirable balance of lightweight design, structural stability, and dual-function radiation shielding, making them strong candidates for next-generation protective systems in high-radiation environments.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 11","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12156429/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0