Bulletin of Materials Science最新文献

Proposed modification of the medical facemask to resist negatively charged viruses 建议改进医用口罩以抵抗带负电荷的病毒

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-23 DOI: 10.1007/s12034-025-03493-4

S F Abdelwahab, M K Mohamed, W Y Ali, A S Ali

{"title":"Proposed modification of the medical facemask to resist negatively charged viruses","authors":"S F Abdelwahab, M K Mohamed, W Y Ali, A S Ali","doi":"10.1007/s12034-025-03493-4","DOIUrl":"10.1007/s12034-025-03493-4","url":null,"abstract":"<div>This study hypothesizes that the separation of the three layers of polypropylene (PP) material of the medical facemasks increases the electrostatic charge (ESC) generated from their triboelectrification by air flow. The ESC increases and enlarges the electric field in front of the facemask to repel viruses. This study examined the effect of the separation of the PP layers by polymeric and metallic spacers on the magnitude of the ESC. The separation by polyurethane (PU) particles showed the highest magnitude of ESC, where PU particles made an air gap between the PP layers. Besides, the negative ESC significantly increased with increasing the air gap between the PP layers. The negative ESC was significantly amplified with the increase in the air gap between the PP layers up to 8 mm at different distances from the outer layer of the tested facemask. Therefore, we suggest that the electric field repels negatively charged viruses. Also, the presence of polyethylene (PE) would generate extra ESC on the sliding surfaces due to its electrostatic property. Using metallic spacers showed lower values of ESC than those generated for PU and PE spacers, as the metallic spacers can conduct ESC generated on the PP layers, and therefore, the total magnitude of ESC decreased. In conclusion, we recommend using PU particles as a spacer in facemasks due to their lighter weight and lower resistance to air flow.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tea polyphenol-based advanced composite materials: fabrication, structure and properties 茶多酚基先进复合材料的制备、结构与性能

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-23 DOI: 10.1007/s12034-025-03495-2

Xiao He, Qing Shen

引用次数: 0

Preparation, structure control and application of straw-based hydrothermal carbon: a review 秸秆基水热炭的制备、结构控制及应用综述

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-17 DOI: 10.1007/s12034-025-03484-5

Qiushuang Li, Fen Li, Ying Yang, Hong Yan

{"title":"Preparation, structure control and application of straw-based hydrothermal carbon: a review","authors":"Qiushuang Li, Fen Li, Ying Yang, Hong Yan","doi":"10.1007/s12034-025-03484-5","DOIUrl":"10.1007/s12034-025-03484-5","url":null,"abstract":"<div>Crop straw is a kind of renewable resource with great application potential, which has the characteristics of a wide source, abundant reserves and low price. Using straw as a raw material and a hydrothermal process to prepare high-function carbon-based material, it is an economic and green way to promote straw resource utilization. In this article, the influencing factors in the preparation process of straw hydrothermal carbon were reviewed. The influences of process parameters such as straw carbon source, hydrothermal time, hydrothermal temperature and solid–liquid ratio on the structural properties of hydrothermal carbon were emphasized. The regulation of the morphology and structure of carbon by activators such as KOH and KMnO4 were analysed. At the same time, the application of straw-based hydrothermal carbon in the field of environmental pollution control, catalysis and electrochemistry is summarized. Finally, it is pointed out that the future research should focus on the structure control method, green activation technology of straw-based hydrothermal carbon and the preparation of hydrothermal carbon from mixed straw, and further improve the stability of the porous structure of the hydrothermal carbon and the interference-free in the practical application environment, so as to realize the commercial application of straw-based hydrothermal carbon.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145316503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application and visual performance of tungsten oxide in advertising design 氧化钨在广告设计中的应用及视觉表现

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-13 DOI: 10.1007/s12034-025-03476-5

Luo Weimin, Zheng Yupu

{"title":"Application and visual performance of tungsten oxide in advertising design","authors":"Luo Weimin, Zheng Yupu","doi":"10.1007/s12034-025-03476-5","DOIUrl":"10.1007/s12034-025-03476-5","url":null,"abstract":"<div> Tungsten oxide (WO3) has recently gained attention as an electrochromic material for dynamic display technologies, particularly advertising, due to its tunable optical and electrochemical properties. In this study, we compared WO3 with titanium dioxide (TiO2) coatings and commercial display films. WO3 layers with thicknesses of 2, 4, and 6 nm were fabricated using a surfactant-assisted spray pyrolytic method to ensure uniformity and adhesion. TiO2 coatings served as controls. To confirm the monoclinic phase of WO3, X-ray diffraction was performed. Optical performance was assessed through UV–Vis–NIR transmission and reflection spectra, while electrochemical behaviour was measured using cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. Durability testing included monitoring transmission and charge insertion/extraction over cycling, alongside environmental stability assessments. An economic evaluation compared Material and operational costs. At 6 nm, TiO2 films achieved a sharpness score of 70, 75% contrast and 80% colour purity, with transmittance of 55% and colouration efficiency of 0.65 cm2/C. Their switching time was 15 s, and performance degraded significantly after extended cycling, including delamination beyond 50,000 cycles. By contrast, WO3 films showed higher transmittance (70%), faster switching (12 s), and better colouration efficiency (0.75 cm2/C). They also exhibited more stable charge density retention, improved ion mobility, and stronger current responses in voltammetry. Overall, WO3 films demonstrated superior optical clarity, faster response, and better durability compared to TiO2. These findings suggests that WO3 is a promising, cost-effective material for next-generation electrochromic displays in advertising applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning predictions of electro-optical properties in ZnO-doped nematic liquid crystals 掺杂zno向列型液晶电光性质的机器学习预测

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-11 DOI: 10.1007/s12034-025-03490-7

Mustafa Aksoy, Yesim Aygul, Onur Ugurlu, Umit Huseyin Kaynar, Gulnur Onsal

{"title":"Machine learning predictions of electro-optical properties in ZnO-doped nematic liquid crystals","authors":"Mustafa Aksoy, Yesim Aygul, Onur Ugurlu, Umit Huseyin Kaynar, Gulnur Onsal","doi":"10.1007/s12034-025-03490-7","DOIUrl":"10.1007/s12034-025-03490-7","url":null,"abstract":"<div>This study explores the effect of zinc oxide (ZnO) nanomaterial doping on the electro-optical properties of 5CB-coded nematic liquid crystals and predicts these properties using machine learning algorithms. We produced seven composite structures with varying ZnO doping ratios and measured their electro-optical transmittance. Furthermore, a prediction model using four different machine learning algorithms (k-Nearest Neighbors, Decision Tree, Random Forest, and Extra Trees) was developed, which predicts optical transmittance as a function of voltage and doping ratio. The Extra Trees algorithm demonstrated the best prediction accuracy, achieving an R2 value of 91% on the experimental dataset. Subsequently, a new composite with a different doping ratio was then experimentally prepared and measured to validate the model, which was trained on the experimental dataset. This study highlights the utility of machine learning for predicting the electro-optical characteristics of doped liquid crystal structures, resulting in considerable time and resource savings in experimental procedures.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using SCAPS to simulate solar cells by obtaining data for perovskites from DFT 利用SCAPS从DFT中获取钙钛矿的数据来模拟太阳能电池

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-11 DOI: 10.1007/s12034-025-03486-3

K Dris, N N Shafeera, M Benhaliliba, A Ben Ahmed, H Bouandas, R Kumar, A Ayeshamariam

{"title":"Using SCAPS to simulate solar cells by obtaining data for perovskites from DFT","authors":"K Dris, N N Shafeera, M Benhaliliba, A Ben Ahmed, H Bouandas, R Kumar, A Ayeshamariam","doi":"10.1007/s12034-025-03486-3","DOIUrl":"10.1007/s12034-025-03486-3","url":null,"abstract":"<div>In this article, the theoretical background of MASnBr3 and Cs2TiBr6 was carried out using density functional theory (DFT) by evaluating the electronic properties through the frontier molecular orbital, UV–visible absorption spectra and density of state spectra. Also, a simulation was conducted to optimize a proposed solar cell to improve the performance of perovskite solar cells (PSCs). This cell is composed of six stacked materials, namely FTO/ETL/MASnBr3/Cs2TiBr6/HTL/Au, and features a double active layer consisting of two perovskites, MASnBr3 and Cs2TiBr6. The simulations were carried out using the SCAPS-1D software. Initially, the impact of the electron transport layer (ETL) on the cell’s output parameters was analysed using different materials, such as ZnO, SnO2, WS2, PCBM, C60, CdS, TiO2, CdZnS and ZnSe. Additionally, the effect of the HTL on the photovoltaic parameters of the cell was studied using materials such as MoO3, CuSCN, NiO, CuSbS2, Cu2O, CuI, CuO, PEDOT:PSS, Cs2TiBr6 and P3HT. Subsequently, the thickness and doping density of the two active layers were optimized. The thickness and doping density of the ETL and HTL were also optimized. Finally, the effect of different materials on the cell’s performance was examined. The cell demonstrated remarkable performance, achieving parameters such as the open-circuit voltage Voc = 1,22 V, Jsc = 33,76 mA cm–2, FF = 89,40% and PCEs = 36,81% for the optimized parameters, including a ZnSe ETL, a MoO3 HTL with a thickness of 100 nm and a doping density of 1021 cm–3, a thickness of 1000 nm for MASnBr3 and 400 nm for Cs2TiBr6.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145315905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Topological study of superprismane based on algebraic polynomial 基于代数多项式的超棱镜拓扑研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-09 DOI: 10.1007/s12034-025-03474-7

Sivakumar Balasubramanian, Rajkumar Veerappan, Muhammad Kamran Siddiqui, Nur Idayu Alimon

{"title":"Topological study of superprismane based on algebraic polynomial","authors":"Sivakumar Balasubramanian, Rajkumar Veerappan, Muhammad Kamran Siddiqui, Nur Idayu Alimon","doi":"10.1007/s12034-025-03474-7","DOIUrl":"10.1007/s12034-025-03474-7","url":null,"abstract":"<div>Superprismane is a porous, three-dimensional carbon allotrope that combines super-hardness, ductility and low effective-mass charge carriers attributes that make it promising for blue-to-UV optoelectronics and high performance structural applications. In this work, we employ the M-polynomial framework to extract complete closed-form expressions for seven classical Zagreb-type topological indices and their seven multiplicative counterparts for an arbitrary (ptimes k) superprismane lattice. Three-dimensional index surfaces are visualized and benchmarked against two canonical carbon networks ({6.8}^{2};text{D}) and graphite. Using least-squares regression, we demonstrate that the multiplicative inverse-sum index achieves a perfect correlation ((r=1.00)) with shear modulus and an almost perfect correlation ((r=0.99)) with Young’s modulus, outperforming all other descriptors. These results show that M-polynomial-derived indices provide a rapid, inexpensive alternative to density-functional calculations for predicting bulk mechanical properties, enabling high-throughput computational screening of novel carbon materials. The study closes a gap in the literature by delivering the first comprehensive suite of additive and multiplicative indices for a three-dimensional porous carbon network and establishes a foundation for data-driven design of advanced allotropes.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of beam oscillation on the microstructure, residual stress, mechanical and corrosion properties of electron beam welded AISI 304SS joints 电子束振荡对电子束焊接AISI 304SS接头显微组织、残余应力、力学性能和腐蚀性能的影响

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-10-03 DOI: 10.1007/s12034-025-03454-x

A Rathore, G G Roy, J K Singh, J Dutta Majumdar

{"title":"Effect of beam oscillation on the microstructure, residual stress, mechanical and corrosion properties of electron beam welded AISI 304SS joints","authors":"A Rathore, G G Roy, J K Singh, J Dutta Majumdar","doi":"10.1007/s12034-025-03454-x","DOIUrl":"10.1007/s12034-025-03454-x","url":null,"abstract":"<div>The present study concerns the understanding of the effect of beam oscillation on electron beam welded AISI 304 stainless steel. The effect of beam oscillation on the microstructure, mechanical properties and electrochemical properties of electron beam welded AISI 304 stainless steel has been analysed. Welding was carried out using an 80 kV, 12 kW electron beam welding unit, using a static beam and an oscillated beam of varied oscillation diameters (1 and 2 mm). The weld morphology in terms of microstructure and residual stress developed in the weld zone was evaluated. A static beam led to the formation of skeletal dendrites in the fusion zone, while the application of an oscillated beam developed a combination of dendrites of lathy and skeletal morphology. The residual stress developed in the fusion zone and heat-affected zone was meticulously measured and was found to vary with welding parameters. The hardness measurement showed a marginally higher microhardness in the fusion zone when beam oscillation was applied (250 VHN) as compared to static beam (245 VHN). Tensile strength variation shows that an oscillated beam offers a higher yield strength (281–270 MPa) and ultimate tensile strength (785–794 MPa) as compared to the static beam (263 and 751 MPa). The percentage elongation in the weld zone developed with an oscillated beam was 127%, which was 21% higher than that of static beam weld (106%). The electrochemical corrosion behaviour also showed a superior corrosion resistance of the weld zone when beam oscillation was applied. The enhancement of mechanical and electrochemical properties developed by oscillated beams has been stated.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145210247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influences of diamond-like carbon coating on corrosion resistance of nitriding AISI 316L substrate 类金刚石碳涂层对氮化AISI 316L基体耐蚀性的影响

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-09-29 DOI: 10.1007/s12034-025-03472-9

Mahshid Kazemi, Akbar Eshaghi, Mazaher Ramazani, Abbas Ali Aghaei

引用次数: 0

Improvement of pitting corrosion resistance of AISI type SS 304L in chloride medium 提高AISI型ss304l在氯化物介质中的耐点蚀性

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2025-09-25 DOI: 10.1007/s12034-025-03477-4

Gopinath Shit

引用次数: 0