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Hybrid strategy matters: tuning mechanical and self-sensing properties in basalt/carbon fiber reinforced polymer laminates 混合策略问题：调整玄武岩/碳纤维增强聚合物层压板的机械和自传感性能
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139027
Fawang Zhu , Caiqian Yang , Fu Xu , Jun Chen
{"title":"Hybrid strategy matters: tuning mechanical and self-sensing properties in basalt/carbon fiber reinforced polymer laminates","authors":"Fawang Zhu ,&nbsp;Caiqian Yang ,&nbsp;Fu Xu ,&nbsp;Jun Chen","doi":"10.1016/j.matlet.2025.139027","DOIUrl":"10.1016/j.matlet.2025.139027","url":null,"abstract":"<div><div>Hybrid basalt/carbon fiber reinforced polymer (FRP) laminates with different hybrid basalt/carbon ratios and stacking sequences were fabricated via wet layup, and their mechanical and piezoresistive properties were evaluated through tensile testing. Results demonstrated that increasing the basalt/carbon ratio reduced elastic modulus and tensile strength, with the optimal performance at a ratio of 3. Stacking sequence also affected properties, with B4C4-1 performing best. A piecewise mechanical–piezoresistive model accurately predicted strain-induced resistance changes, enhancing their potential for engineering applications.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139027"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557119","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 boron on static recrystallization behavior of Monel K-500 alloy 硼对蒙乃尔K-500合金静态再结晶行为的影响
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139023
Yanfei Min , Zhigang Song , Wenjie Zheng , Han Feng , Jianguo He , Yuliang Zhu , Tao Liu
{"title":"Effect of boron on static recrystallization behavior of Monel K-500 alloy","authors":"Yanfei Min ,&nbsp;Zhigang Song ,&nbsp;Wenjie Zheng ,&nbsp;Han Feng ,&nbsp;Jianguo He ,&nbsp;Yuliang Zhu ,&nbsp;Tao Liu","doi":"10.1016/j.matlet.2025.139023","DOIUrl":"10.1016/j.matlet.2025.139023","url":null,"abstract":"<div><div>The effect of varying boron (B) content on the static recrystallization behavior of Monel K-500 alloy was investigated. Increasing the B content (0.001 %, 0.005 %, and 0.022 %) significantly suppresses static recrystallization, reducing the recrystallized fraction from 92.7 % to 31.4 % and increasing the average kernel average misorientation (KAM) value from 0.19° to 0.85°. The addition of B promotes the formation of nanoscale Ni-Ti-B precipitates by combining with Ni and Ti, which inhibits the precipitation of banded TiC and effectively pins grain boundaries to hinder their migration. Additionally, the solute drag effect, which results from B segregation at grain boundaries, increases the energy barrier for grain boundary movement and further hinders recrystallization. These findings offer new perspectives on B in regulating recrystallization in nickel-based alloys.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139023"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548805","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
Solvothermal synthesis of microporous trimetallic zeolitic imidazolate framework 溶剂热合成微孔三金属分子筛咪唑盐骨架
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139026
Sammi Kumari , Bhuman Gangopadhyay , Vivek Kumar Singh , Dipankar Chattopadhyay , Santanu Das , Jagannath Roy
{"title":"Solvothermal synthesis of microporous trimetallic zeolitic imidazolate framework","authors":"Sammi Kumari ,&nbsp;Bhuman Gangopadhyay ,&nbsp;Vivek Kumar Singh ,&nbsp;Dipankar Chattopadhyay ,&nbsp;Santanu Das ,&nbsp;Jagannath Roy","doi":"10.1016/j.matlet.2025.139026","DOIUrl":"10.1016/j.matlet.2025.139026","url":null,"abstract":"<div><div>Zeolitic imidazolate framework (ZIF) is one kind of metal organic framework (MOF) in which imidazole or its derivatives undergo coordination with the metal ion/metal cluster. Solvothermal method of synthesis is one of the mostly applied techniques to obtain ZIF and in this work this technique is employed to develop coordination framework among 2-methyl imidazole and three metals of first row transition series of the periodic table (Co, Ni and Zn). Characterization techniques such as FTIR, XRD, TEM, BET and SEM-EDX predict the development of microporous trimetallic ZIF with highest weight percentage of Co-ZIF.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139026"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534333","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
Enhancing the strength of Al-Cu-Mg alloy resistance spot welds under high vacancy concentration via post-weld down-slope current 利用焊后下坡电流提高高空位浓度下铝铜镁合金电阻点焊的强度
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139022
Yu Zhang , Shitian Wei , Ziyi Wang , Suhong Zhang , Yali Xie
{"title":"Enhancing the strength of Al-Cu-Mg alloy resistance spot welds under high vacancy concentration via post-weld down-slope current","authors":"Yu Zhang ,&nbsp;Shitian Wei ,&nbsp;Ziyi Wang ,&nbsp;Suhong Zhang ,&nbsp;Yali Xie","doi":"10.1016/j.matlet.2025.139022","DOIUrl":"10.1016/j.matlet.2025.139022","url":null,"abstract":"<div><div>This study addresses the strength loss issue of an Al-Cu-Mg alloy resistance spot welds by in situ enhancing the mechanical properties through a novel post-weld down-slope current technique. By applying a down-slope current to actively utilize the high vacancy concentration generated during welding, the joints achieved a 22.9 % higher load-bearing capacity after 6 months of natural aging than conventional methods. The high cooling rates during welding create elevated concentrations of excess vacancies, which in turn promote solute atom clustering and accelerate the subsequent natural aging process. This method proves to enhance the mechanical properties of the joints more effectively than conventional welding techniques.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139022"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534389","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
Optimization of surface roughness in WAAM-fabricated ER70S-6 steel components waam制造ER70S-6钢构件表面粗糙度优化
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139024
Shang-Pang Yu , Jheng-Syun Jhong
{"title":"Optimization of surface roughness in WAAM-fabricated ER70S-6 steel components","authors":"Shang-Pang Yu ,&nbsp;Jheng-Syun Jhong","doi":"10.1016/j.matlet.2025.139024","DOIUrl":"10.1016/j.matlet.2025.139024","url":null,"abstract":"<div><div>This study proposes a cost-effective and practically applicable process optimization strategy for improving surface quality in WAAM using ER70S-6 solid wire. A Taguchi L9 orthogonal array was employed to systematically investigate the effects of three process parameters, travel speed, current, and voltage on the areal surface roughness of deposited walls. Interpass temperatures were monitored using an infrared thermal camera to evaluate thermal accumulation. The results revealed that a parameter combination of 20  cm/min travel speed, 130 A current, and 19  V voltage, coupled with a stabilized interpass temperature of approximately 250 °C, significantly reduced thermal buildup and enhanced surface morphology, yielding a minimum S<sub>a</sub> of 187  μm. The optimized parameters were further validated through the fabrication of a geometric structure. The findings confirmed that interpass dwell time contributes to improved local surface flatness and verified the stability and feasibility of the selected parameters. This work not only demonstrates a practical pathway to surface improvement in low-alloy WAAM components but also provides a useful reference for surface quality control and thermal management strategies in WAAM processes.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139024"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563051","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
Influence of argon gas flow rate on the porosity of AA5087 aluminum alloy walls made by metal inert gas wire and arc additive manufacturing 氩气流量对金属惰性气体丝和电弧增材制造AA5087铝合金壁气孔率的影响
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-07-01 DOI: 10.1016/j.matlet.2025.139025
Miroslav Sahul , Marián Pavlík , Barbora Ludrovcová , Martin Sahul , Libor Beránek , Jakub Horváth
{"title":"Influence of argon gas flow rate on the porosity of AA5087 aluminum alloy walls made by metal inert gas wire and arc additive manufacturing","authors":"Miroslav Sahul ,&nbsp;Marián Pavlík ,&nbsp;Barbora Ludrovcová ,&nbsp;Martin Sahul ,&nbsp;Libor Beránek ,&nbsp;Jakub Horváth","doi":"10.1016/j.matlet.2025.139025","DOIUrl":"10.1016/j.matlet.2025.139025","url":null,"abstract":"<div><div>The paper investigates the impact of the argon shielding gas flow rate on the porosity of metal inert gas wire and arc additive manufactured (MIG-WAAM) AA5087 aluminum alloy walls. Gas flow rates from 6 to 14 l/min were utilized for deposition of the walls. The porosity level was evaluated by light microscopy (LM) and computed tomography (CT). An increase in the gas flow rate decreased the porosity in deposited walls from 4.46 % to 0.60 %. CT results followed the same trend, decreasing porosity from 7.29 % to 0.70 %. Hydrogen content that strongly affects the porosity of aluminum alloys increased with gas flow rate from 49 ppm to 101 ppm. This behaviour is associated with rapid solidification of molten pool caused by forced convection and air recirculation at higher gas flow rates. The detected pores ranged in size from 54 μm to 3.3 mm and in sphericity from 0.40 to 0.65.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139025"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570617","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
Self-biased TiO2/Si heterostructure for UV-NIR detection via one-step laser ablation process 一步激光烧蚀法检测自偏置TiO2/Si异质结构紫外-近红外
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-30 DOI: 10.1016/j.matlet.2025.139013
Fattin A. Fadhil , Iman H. Hadi , Raid A. Ismail , Ethar Yahya Salih , Abdullah R. Abdulwahhab
{"title":"Self-biased TiO2/Si heterostructure for UV-NIR detection via one-step laser ablation process","authors":"Fattin A. Fadhil ,&nbsp;Iman H. Hadi ,&nbsp;Raid A. Ismail ,&nbsp;Ethar Yahya Salih ,&nbsp;Abdullah R. Abdulwahhab","doi":"10.1016/j.matlet.2025.139013","DOIUrl":"10.1016/j.matlet.2025.139013","url":null,"abstract":"<div><div>This article elucidates a straight forward approach for the fabrication of self-driven, highly responsive broad-band TiO<sub>2</sub>/Si heterojunction photodetector via one step laser ablation in water. In detail, the synthesized TiO<sub>2</sub> nanoparticles revealed the occurrence of average diameter of 22.43 nm along optical bandgap of 3.6 eV. The fabricated TiO<sub>2</sub>/Si heterostructure exhibited a distinguished self-bias mode under illumination of 405 nm; this was perceived along <span><math><mrow><msub><mi>I</mi><mrow><mi>p</mi><mi>h</mi></mrow></msub><mo>/</mo><msub><mi>I</mi><mi>D</mi></msub></mrow></math></span> ratio reaching 10<sup>5</sup>, while the rectification ratio was found to be 288 under dark setting. Continuously, the fabricated heterostructure revealed a responsivity (<span><math><msub><mi>R</mi><mi>λ</mi></msub></math></span>) profile along UV-NIR region with peak values of 0.2 and 0.38 A/W at UV and NIR regions, respectively, indicating the active role of the utilized TiO<sub>2</sub> and Si layers; these values were obtained at zero bias volage evidencing the self-driven mode of the proposed geometry. The specific detectivity (D*) and external quantum efficiency (EQE) of <span><math><mrow><mn>41</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mn>11</mn></msup></mrow></math></span> Jones and 65 % were attained at the NIR region, respectively.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139013"},"PeriodicalIF":2.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518645","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
Co-TiO2 as a UV-visible photocatalyst for hydrogen generation by alkaline water splitting Co-TiO2作为碱性水裂解制氢的紫外可见光催化剂
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-30 DOI: 10.1016/j.matlet.2025.139003
Athulya Jayakumar, Ambily Krishnan
{"title":"Co-TiO2 as a UV-visible photocatalyst for hydrogen generation by alkaline water splitting","authors":"Athulya Jayakumar,&nbsp;Ambily Krishnan","doi":"10.1016/j.matlet.2025.139003","DOIUrl":"10.1016/j.matlet.2025.139003","url":null,"abstract":"<div><div>In this study TiO<sub>2</sub> nanotubes (TNT) were grown on titanium foil through anodization and subsequently modified with cobalt using the simple and cost-effective electrodeposition method. Photoelectrochemical analysis of the electrode so developed revealed that the overpotential for hydrogen generation required for Co-TNT at a current density of 10 mA/cm<sup>2</sup> was 380 mV in the dark and decreased to 358 mV under UV light. Chronoamperometric measurements showed that Co-TNT generated a photocurrent of 0.69 mA/cm<sup>2</sup>. Additionally, green light at 80 mW/cm<sup>2</sup> resulted in a current density of 0.2 mA/cm<sup>2</sup> corresponding to an incident photon-to-current efficiency (IPCE) of 0.58 %. These findings suggest that Co-TNT has significant potential as a UV–visible photocatalyst for hydrogen generation via water splitting in an alkaline medium.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139003"},"PeriodicalIF":2.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523236","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
Color electro-reflective devices with long-term memory effect 具有长期记忆效应的彩色电反射装置
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-30 DOI: 10.1016/j.matlet.2025.139012
Xin Tang, Yu Duan
{"title":"Color electro-reflective devices with long-term memory effect","authors":"Xin Tang,&nbsp;Yu Duan","doi":"10.1016/j.matlet.2025.139012","DOIUrl":"10.1016/j.matlet.2025.139012","url":null,"abstract":"<div><div>Electro-reflective devices (ERDs) face challenges such as high current densities and significant voltage drops due to rapid nucleation and growth of silver particles. By limiting the distribution of silver ions through the covalent attraction of acetate and silver ions, the coloration efficiency was increased from 46 cm<sup>2</sup>/C to 93 cm<sup>2</sup>/C. ERDs have the cycle life of over 1200 cycles. Moreover, the addition of CH<sub>3</sub>COOLi prolonged the memory effect of the device for 18 min. These findings pave the way for the development of high-performance ERDs with enhanced cycling stability and memory effect.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139012"},"PeriodicalIF":2.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523237","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
Structural, optical, magnetic, and photocatalytic properties of multi-transition metal (Ni, Cu, Co, Fe)-doped ZnO nanomaterials 多过渡金属（Ni, Cu, Co, Fe）掺杂ZnO纳米材料的结构、光学、磁性和光催化性能
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-30 DOI: 10.1016/j.matlet.2025.139014
Trinh Duc Thien , Nguyen Van Thang , Nguyen Thi My Duyen , Nguyen Ngoc Huyen , Le T.M. Cham , Dao Thi Mai , Mai Van Tuan , Nguyen Dang Co , Ho Thi Anh , Pham Van Vinh , Nguyen Duc Cuong , Nguyen Tuan Canh , Duong Van Pham , Minh Hong Pham , Nguyen Dinh Lam
{"title":"Structural, optical, magnetic, and photocatalytic properties of multi-transition metal (Ni, Cu, Co, Fe)-doped ZnO nanomaterials","authors":"Trinh Duc Thien ,&nbsp;Nguyen Van Thang ,&nbsp;Nguyen Thi My Duyen ,&nbsp;Nguyen Ngoc Huyen ,&nbsp;Le T.M. Cham ,&nbsp;Dao Thi Mai ,&nbsp;Mai Van Tuan ,&nbsp;Nguyen Dang Co ,&nbsp;Ho Thi Anh ,&nbsp;Pham Van Vinh ,&nbsp;Nguyen Duc Cuong ,&nbsp;Nguyen Tuan Canh ,&nbsp;Duong Van Pham ,&nbsp;Minh Hong Pham ,&nbsp;Nguyen Dinh Lam","doi":"10.1016/j.matlet.2025.139014","DOIUrl":"10.1016/j.matlet.2025.139014","url":null,"abstract":"<div><div>A low-temperature-assisted co-precipitation approach synthesized Ni<sub>x</sub>Cu<sub>x</sub>Co<sub>x</sub>Fe<sub>x</sub>ZnO nanomaterials. Structure investigation confirmed the integration of Ni, Cu, Co, and Fe into the ZnO lattice, with Size-Strain Plot quantification of crystallite size and microstrain. EDS showed a consistent distribution of all elements, whereas morphological studies showed a shift from quasi-spherical to well-defined hexagonal structures as dopant concentration increased. UV–Vis absorption spectra showed d-d transitions, indicating Fe<sup>3+</sup> and Co<sup>2+</sup> in ZnO lattice. Magnetic study demonstrated a doping-dependent increase in paramagnetic behavior, suggesting transition metal ion exchange. Photocatalytic tests showed that the Ni<sub>0.025</sub>Cu<sub>0.025</sub>Co<sub>0.025</sub>Fe<sub>0.025</sub>ZnO sample degraded approximately 100 % of RhB in 60 min under UV light. These results suggest multi-transition-metal-doped ZnO nanoparticles could be used in photocatalysis, optoelectronics, and magnetic materials.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"399 ","pages":"Article 139014"},"PeriodicalIF":2.7,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523235","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
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