Materials最新文献_第2页

Mixing Safety of Composite Solid Propellant Slurry in a Blade-Free Planetary Mixer. 复合固体推进剂浆体在无叶片行星混合器中的混合安全性。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081672

Yuncheng Li, Qingjun Wang, Hanyu Chen, Yuanwei Xi, Weibin Tao, Dayong Li, Min Xia

{"title":"Mixing Safety of Composite Solid Propellant Slurry in a Blade-Free Planetary Mixer.","authors":"Yuncheng Li, Qingjun Wang, Hanyu Chen, Yuanwei Xi, Weibin Tao, Dayong Li, Min Xia","doi":"10.3390/ma19081672","DOIUrl":"10.3390/ma19081672","url":null,"abstract":"Blade-Free Planetary Mixer (BFPM) can rapidly and efficiently mix highly viscous materials because of the strong centrifugal forces generated by the planetary motion of the mixing vessel. The safety of energetic propellant slurry during BFPM processing is critical. In this work, the mixing performance and process safety of composite solid propellant slurry in a BFPM were investigated through morphology observation, mixing index analysis, temperature measurement, rheological testing, mechanical sensitivity evaluation, and thermal analysis. The results showed that the BFPM achieved safe, efficient, and uniform mixing of the slurry. Under the baseline condition of 1000 rpm, the mixing index reached 95.73% after 24 min, and the slurry temperature increased to only 31.1 °C. The influence of BFPM processing on slurry safety was mainly reflected in the spatial redistribution of energetic solid components and the solid-liquid mixing state. And mechanical sensitivity tended to increase in regions of higher apparent viscosity. Increasing the rotational speed and adopting alternating rotation promoted particle dispersion and reduced local apparent viscosity, but an excessively high rotational speed reduced thermal stability. Overall, 1200 rpm combined with alternating rotation was identified as the most suitable operating condition. This work provides a practical basis for the safe and efficient BFPM processing of energetic propellant slurries.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117734/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816348","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

Controllable Preparation of rGO-PPS Composite Filter Material Based on Spray Modification and Its Filtration Performance and Dust-Cleaning Effect. 喷雾改性rGO-PPS复合过滤材料的可控制备及其过滤性能和除尘效果。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081670

Xin Zhang, Ming Li, Huiying Tian, Daehyeon Kim, Yong Jin

{"title":"Controllable Preparation of rGO-PPS Composite Filter Material Based on Spray Modification and Its Filtration Performance and Dust-Cleaning Effect.","authors":"Xin Zhang, Ming Li, Huiying Tian, Daehyeon Kim, Yong Jin","doi":"10.3390/ma19081670","DOIUrl":"10.3390/ma19081670","url":null,"abstract":"With the continuous promotion of the dual carbon target, effective control of high-concentration dust pollutants in industrial sites is of great value for the healthy creation of healthy industrial environments and efficient energy utilization. In this study, we used the spraying method to improve and prepare the dust removal material, polyphenylene sulfide (PPS) fiber filter material, and test the filtration performance, resistance characteristics, and dust-cleaning effect of the improved rGO-PPS material. The results showed that, compared with PPS filter material, rGO-PPS material significantly improved particle filtration efficiency, with a filtration efficiency 0.058-19.417% higher in the particle size range of 0.265-5.75 μm. The higher the spraying concentration of the composite filter material, the higher the filtration efficiency at the same particle size. The comprehensive filtration performance of rGO-PPS composite filter material with a concentration of 3 g/L was better, as it better met the requirements of \"high efficiency and low resistance\". With an increase in dust load, the filtration resistance of the filter material showed a continuous upward trend. The dust peeling rate increased with an increase in blowback wind speed. When the blowback wind speed reached 0.3 m/s, the dust-cleaning effect of the filter material tended to stabilize. Under this condition, the dust peeling rate of PPS filter material was 61.58%, and the dust peeling rate of 3 g/L rGO-PPS composite filter material reached 74.52%. These research results provide an experimental basis and technical support for the development and engineering application of high-efficiency purification filter materials for industrial multi-source pollutants.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117793/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816750","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

Experimental Investigation into the Connection Performance of Reinforcement Sleeves Utilizing MPC Grouting Materials. MPC注浆材料加固套管连接性能试验研究。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081661

Hao Shu, Lu Chen

{"title":"Experimental Investigation into the Connection Performance of Reinforcement Sleeves Utilizing MPC Grouting Materials.","authors":"Hao Shu, Lu Chen","doi":"10.3390/ma19081661","DOIUrl":"10.3390/ma19081661","url":null,"abstract":"With the vigorous promotion of the modernization of China's construction industry, the proportion of prefabricated buildings in new construction projects has increased steadily. Grouted sleeve connection is a mainstream joining method for prefabricated components, and the performance of grouting materials is crucial to connection reliability. In this study, a modified polyurethane composite (MPC) was developed as a novel sleeve grouting material, and seven grouted splice specimens with different steel bar strength grades and anchorage lengths were fabricated for uniaxial tensile tests. The mechanical properties of MPC and the connection performance of specimens were systematically investigated, and the effects of steel bar strength grade and anchorage length on ultimate load, average bond strength, and strain characteristics were quantitatively analyzed. The results show that MPC has excellent fluidity, and its mechanical strengths meet the specified requirements. Increasing steel bar strength grade and anchorage length significantly improves ultimate load: at a 6d anchorage length, the ultimate load of the S600 series (HRB600E) is 44.85% higher than that of the S400 series (HRB400E); extending the S400 series' anchorage length from 4d to 8d increases ultimate load by 50.61%. Average bond strength decreases with increasing anchorage length (S400-MPC-8d is 24.70% lower than S400-MPC-4d) but increases with higher steel bar strength grade (S600-MPC-6d is 32.37% higher than S400-MPC-6d). The sleeve remains elastic during the test, ensuring safety. Prediction formulas for average bond strength under slip failure were established, with good agreement between predicted and experimental results. For both HRB400E and HTRB600E steel bars, considering safety and installation errors, a critical anchorage length of 8d is recommended for engineering design.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13118010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816977","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 Thermal Treatment and Particle Size on the Physicochemical Properties and Filler Performance of Oyster Shell-Derived CaCO₃ in Mortar. 热处理及粒径对牡蛎壳基碳酸钙砂浆理化性能及填充性能的影响

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081656

Jessica de Dios-Suárez, Brayan Leonardo Pérez-Escobar, Germán Pérez-Hernández, Francisco Iván Lizama-Tzec, Laura Lorena Díaz-Flores, Salatiel Pérez-Montejo, Juan Pablo de Dios-Jiménez, Rafael Torres-Ricárdez

{"title":"Influence of Thermal Treatment and Particle Size on the Physicochemical Properties and Filler Performance of Oyster Shell-Derived CaCO3 in Mortar.","authors":"Jessica de Dios-Suárez, Brayan Leonardo Pérez-Escobar, Germán Pérez-Hernández, Francisco Iván Lizama-Tzec, Laura Lorena Díaz-Flores, Salatiel Pérez-Montejo, Juan Pablo de Dios-Jiménez, Rafael Torres-Ricárdez","doi":"10.3390/ma19081656","DOIUrl":"10.3390/ma19081656","url":null,"abstract":"The cement industry contributes approximately 7-8% of global CO2 emissions, motivating the development of sustainable supplementary materials. This study evaluates the partial replacement (10 wt.%) of Portland cement with calcium carbonate (CaCO3) derived from oyster shells, both untreated and thermally treated at 600 °C, in non-structural mortar blocks. Structural and physicochemical characterization was performed using XRD, SEM, EDS, BET, and TGA to assess phase composition, morphology, and surface properties. Thermal treatment modified the textural characteristics of CaCO3, reducing the crystallite size and increasing the specific surface area (from 5.8 to 25.6 m2/g), without phase transformation. Compressive strength results, relative to a reference mortar (13.6 MPa), showed comparable performance, with variations generally within ±10%, although slightly larger deviations were observed for specific particle sizes. Finer calcined particles yielded the highest strength (15.0 MPa), reinforcing the combined influence of particle size and thermal treatment. These results suggest that CaCO3 acts primarily through a filler effect, improving particle packing and matrix interaction. Both untreated and heat-treated CaCO3 satisfied strength requirements for non-structural applications, supporting the valorization of oyster shell waste as a sustainable material in cement-based systems.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117806/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816881","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

Assessing the Coefficients of Porosity-to-Binder Index Formulations for Stabilized Clay Through Automated Calibration Methods. 通过自动校准方法评估稳定粘土孔隙-粘结剂指数公式的系数。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081663

Jair De Jesús Arrieta Baldovino, Oscar E Coronado-Hernández, Yamid E Nuñez de la Rosa

{"title":"Assessing the Coefficients of Porosity-to-Binder Index Formulations for Stabilized Clay Through Automated Calibration Methods.","authors":"Jair De Jesús Arrieta Baldovino, Oscar E Coronado-Hernández, Yamid E Nuñez de la Rosa","doi":"10.3390/ma19081663","DOIUrl":"10.3390/ma19081663","url":null,"abstract":"Since 2007, the porosity-to-cement relationship has been widely used as a unified parameter to predict mechanical strength, durability, expansion, and stiffness of stabilized soils. In this formulation, the volumetric binder content is adjusted by an internal exponent x, typically ranging between 0 and 1, to balance the relative contributions of porosity and cementation. Traditionally, the parameters of this relationship have been obtained using manual regression procedures. This study proposes an automated calibration methodology for the porosity-binder index, where the parameters A, B, and x are determined through an iterative optimization framework based on minimization of the sum of absolute errors (SAE) combined with a Monte Carlo search algorithm. The methodology is applied to a cement-stabilized clay blended with ground glass (GG), recycled gypsum (GY), and limestone residues (CLW). The predictive capability of the calibrated model is evaluated using unconfined compressive strength (qu) and initial shear stiffness (Go) datasets. Two calibration strategies are considered: Calibration Process No. 1, based on CLW mixtures and qu values only, and Calibration Process No. 2, incorporating all mixtures (CLW, GG, and GY) and both qu and Go responses. The results indicate that Calibration Process No. 2 provides a more robust and physically consistent parameter set, yielding coefficients of determination of 0.9318 and 0.9412 for qu and Go, respectively. The proposed algorithm-driven calibration framework improves predictive capability and provides a systematic approach for determining the parameters of the porosity-binder relationship.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816959","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

Janus Nanoparticles in Doxorubicin Delivery: A New Frontier in Targeted Cancer Treatment. Janus纳米颗粒递送阿霉素：靶向癌症治疗的新前沿。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081664

Valeria Flores, Moniellen Pires Monteiro, Tanya Plaza, Jacobo Hernandez-Montelongo

{"title":"Janus Nanoparticles in Doxorubicin Delivery: A New Frontier in Targeted Cancer Treatment.","authors":"Valeria Flores, Moniellen Pires Monteiro, Tanya Plaza, Jacobo Hernandez-Montelongo","doi":"10.3390/ma19081664","DOIUrl":"10.3390/ma19081664","url":null,"abstract":"Cancer remains a primary global health challenge, accounting for millions of new cases and significant mortality annually. Although doxorubicin (DOX) is a fundamental anthracycline used for various malignancies, its therapeutic index is severely limited by poor selectivity, systemic toxicity, and dose-dependent cardiotoxicity. To address these issues, Janus nanoparticles (JNPs) have emerged as a promising bifunctional platform characterized by a structural asymmetry that allows for the independent functionalization of each hemisphere. This review examines primary fabrication routes-such as masking, microfluidics, self-assembly, and phase separation-and their specific applications in DOX delivery. The anisotropic architecture of JNPs enables a \"separate rooms\" concept, allowing for the co-delivery of incompatible drugs while facilitating multi-stimuli-responsive release mechanisms triggered by pH, enzymes, or NIR light. Furthermore, JNPs have demonstrated enhanced tumor accumulation and reduced systemic toxicity compared to conventional isotropic carriers. Recent developments even highlight the use of autonomous nanomotors to improve therapeutic delivery while minimizing premature leakage. However, clinical translation is currently hindered by manufacturing complexity, high equipment costs, scalability issues, and a lack of standardized reporting in the literature. Ultimately, JNPs represent a sophisticated frontier in precision oncology, though robust manufacturing processes and characterization protocols are required for future medical adoption.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147817007","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

Flow-Line Evolution, Defect Formation, and Structure-Property Relationships in Aluminum Alloy Forging: A Review. 铝合金锻造过程中流线演化、缺陷形成及组织性能关系的研究进展。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081665

HaiTao Wang, GuoZheng Quan, Chenghai Pan, Xugang Dong, Jie Zhou

{"title":"Flow-Line Evolution, Defect Formation, and Structure-Property Relationships in Aluminum Alloy Forging: A Review.","authors":"HaiTao Wang, GuoZheng Quan, Chenghai Pan, Xugang Dong, Jie Zhou","doi":"10.3390/ma19081665","DOIUrl":"10.3390/ma19081665","url":null,"abstract":"Flow lines in aluminum alloy forgings are not merely post-deformation metallographic features; they are integrated indicators of material transport, microstructural evolution, defect susceptibility, and service performance. This review critically examines the mechanisms controlling flow-line evolution, with emphasis on constitutive flow behavior, dynamic recovery and recrystallization, second-phase redistribution, friction, thermal gradients, and die/preform design. It then evaluates how abnormal flow paths promote key defects, including folding/laps, flow-through discontinuities, vortex-like instability, and exposed flow lines, and distinguishes well-established mechanisms from topics that still rely on indirect evidence. Particular attention is given to the effects of flow-line morphology on anisotropy, notch sensitivity, corrosion-assisted damage, and fatigue life in forged aluminum alloys. Current control strategies, including preform optimization, FE-based backward tracing, multiphysics defect indices, frictional heat management, and isothermal forging, are also assessed. The available literature shows that stable contour-following flow lines are essential for the simultaneous control of defect formation, microstructural homogeneity, and durability, while major research needs remain in in situ validation, quantitative defect criteria, and digitally closed-loop process control. This review is therefore framed as a critical narrative synthesis rather than a formal systematic review; emphasis is placed on forging-centered studies that directly relate flow-path evolution to defect formation, anisotropy, fatigue, and process optimization, while evidence transferred from adjacent processes is treated as mechanistic support rather than equivalent proof.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117697/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816608","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

Design, Performance and Mechanisms of Asphalt Modified with Polyurethane and Hydroxylated Crumb Rubber. 聚氨酯与羟基化橡胶改性沥青的设计、性能及机理。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081654

Jun Xie, Junpeng Lin, Shaopeng Wu, Quantao Liu, Chao Li, Shibo Zhang, Huan Wang, Fusong Wang, Zoujun Wan

{"title":"Design, Performance and Mechanisms of Asphalt Modified with Polyurethane and Hydroxylated Crumb Rubber.","authors":"Jun Xie, Junpeng Lin, Shaopeng Wu, Quantao Liu, Chao Li, Shibo Zhang, Huan Wang, Fusong Wang, Zoujun Wan","doi":"10.3390/ma19081654","DOIUrl":"10.3390/ma19081654","url":null,"abstract":"Under long-term heavy load and complex service environments, polyurethane-modified asphalt (PUMA) struggles to simultaneously satisfy the requirements of rutting and cracking resistance of asphalt pavements, as cyclic stress loading reduces the elastic recovery and low-temperature toughness of polyurethane (PU). To address this issue, this study employed hydroxylated crumb rubber (HCR), which is obtained by activating the surface of crumb rubber (CR) and can chemically crosslink with PU in asphalt to form a crosslinked network structure. The aim was to enhance the rutting and cracking resistance of PUMA by utilizing the elasticity and low-temperature toughness of CR. An orthogonal design was employed to systematically design a modified asphalt formulation with PU and HCR (PU/HCRMA) by controlling the isocyanate index and the contents of PU and HCR. The basic properties, rheological properties, and viscoelastic properties of PU/HCRMA were systematically investigated. The results demonstrate that the rutting and cracking resistance of PU/HCRMA are substantially enhanced, with an improvement of 28.91% in the rutting factor at 64 °C compared to PUMA and a reduction of 49.93 MPa in the stiffness modulus at -24 °C. Simultaneously, incorporating HCR in PUMA enhances its viscosity and flow resistance while reducing temperature susceptibility. Furthermore, by providing load-bearing sites, HCR endows PU/HCRMA with exceptional elastic recovery and deformation resistance. Results from FTIR and FM confirm the reaction between isocyanate groups in the PU prepolymer and the hydroxyl groups on the surface of HCR and the formation of HCR-PU crosslinked networks. Finally, PU/HCRMA asphalt mixtures demonstrate significant improvements in both rutting and cracking resistance. This research outcome provides a new direction for the development of high-performance road asphalt materials.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816813","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

Swing-Arc Narrow-Gap Submerged Arc-Welding Process Assisted by Pre-Embedding Cold Wires. 预埋冷丝辅助的摆弧窄间隙埋弧焊工艺。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081655

Shubin Liu, Yupeng Cao, Hong Li, Jie Zhu, Changxin Zhou, Zhengyu Zhu, Jiayou Wang

{"title":"Swing-Arc Narrow-Gap Submerged Arc-Welding Process Assisted by Pre-Embedding Cold Wires.","authors":"Shubin Liu, Yupeng Cao, Hong Li, Jie Zhu, Changxin Zhou, Zhengyu Zhu, Jiayou Wang","doi":"10.3390/ma19081655","DOIUrl":"10.3390/ma19081655","url":null,"abstract":"To solve the problems of poor weld formation, difficult slag removal, and inferior joint microstructure and hardness in conventional narrow-gap submerged arc welding (NG-SAW), a swing arc NG-SAW process assisted by pre-embedding cold wires was proposed. Synergistically optimizing the welding energy parameters and additional cold wires ensured sound weld formation and enhanced slag detachability, while the efficiency of multilayer welding was improved by reducing the number of weld layers by 33.3%. The slag adhesion mechanism is clarified as follows: a high welding heat input facilitates elemental diffusion at the weld-slag interface, leading to the formation of a continuous and thick interlayer composed of (Fe,Mn)O and MgO-Al2O3-CaO phases. This interlayer strengthens the chemical bonding between slag and weld, thereby impeding slag removal. Microstructure evolution analysis of the multilayer welded joint revealed that the variable-angle design increases the groove volume and, combined with the heat-absorbing effect of the additional wires, accelerates molten pool cooling, thereby refining grains in both the weld metal zone and reheat-affected zone. Meanwhile, the tempering exerted by the heat-affected zone (HAZ) of the subsequent weld layer on the previous layer is attenuated. This promotes the gradual transformation of hard-brittle lath martensite in the coarse-grained heat-affected zone (CGHAZ) of the bottom layer into tougher tempered martensite/bainite in the CGHAZ of the upper layers. As a result, the hardness uniformity within the HAZ, the critical weak region of the joint, was enhanced by 54%, enabling synchronous improvement in microstructural homogeneity, hardness distribution, and overall welding efficiency.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117279/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147816880","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

Recent Progress in Nanophotonics for Green Energy, Medicine, Healthcare, and Optical Computing Applications. 纳米光子学在绿色能源、医学、医疗保健和光计算应用中的最新进展。

IF 3.2 3区材料科学

Materials Pub Date : 2026-04-21 DOI: 10.3390/ma19081660

Osama M Halawa, Esraa Ahmed, Malk M Abdelrazek, Yasser M Nagy, Omar A M Abdelraouf

{"title":"Recent Progress in Nanophotonics for Green Energy, Medicine, Healthcare, and Optical Computing Applications.","authors":"Osama M Halawa, Esraa Ahmed, Malk M Abdelrazek, Yasser M Nagy, Omar A M Abdelraouf","doi":"10.3390/ma19081660","DOIUrl":"10.3390/ma19081660","url":null,"abstract":"Nanophotonics, an interdisciplinary field merging nanotechnology and photonics, has enabled transformative advancements across diverse sectors, including green energy, biomedicine, and optical computing. This review comprehensively examines recent progress in nanophotonic principles and applications, highlighting key innovations in material design, device engineering, and system integration. In renewable energy, nanophotonics allows the use of light-trapping nanostructures and spectral control in perovskite solar cells, concentrating solar power systems, and thermophotovoltaics. This has significantly enhanced solar conversion efficiencies, approaching theoretical limits. In biosensing, nanophotonic platforms achieve unprecedented sensitivity in detecting biomolecules, pathogens, and pollutants, enabling real-time diagnostics and environmental monitoring. Medical applications leverage tailored light-matter interactions for precision photothermal therapy, image-guided surgery, and early disease detection. Furthermore, nanophotonics underpins next-generation optical neural networks and neuromorphic computing, offering ultrafast, energy-efficient alternatives to von Neumann architectures. Despite rapid growth, challenges in scalability, fabrication costs, and material stability persist. Future advancements will rely on novel materials, AI-driven design optimization, and multidisciplinary approaches to enable scalable, low-cost deployment. This review summarizes recent progress and highlights future trends, including novel material systems, multidisciplinary approaches, and enhanced computational capabilities, paving the way for transformative applications in this rapidly evolving field.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"19 8","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13117728/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147817045","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