Materials Today Communications最新文献

Influences of fiber orientation and process parameters on diamond wire sawn surface characteristics of 2.5D Cf/SiC composites 纤维取向和工艺参数对 2.5D Cf/SiC 复合材料金刚线锯切表面特性的影响

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-14 DOI: 10.1016/j.mtcomm.2024.110421

Yihe Liu, Yufei Gao, Guanzheng Li, Zhenyu Shi

{"title":"Influences of fiber orientation and process parameters on diamond wire sawn surface characteristics of 2.5D Cf/SiC composites","authors":"Yihe Liu, Yufei Gao, Guanzheng Li, Zhenyu Shi","doi":"10.1016/j.mtcomm.2024.110421","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110421","url":null,"abstract":"2.5D C/SiC composite materials are widely used in aerospace high-temperature components, optical system structural components and other fields due to their excellent performance. For the cutting of 2.5D C/SiC composites, diamond wire saw cutting process has great potential for application. In this study, experiments were conducted on cutting 2.5D C/SiC composites with diamond wire saw along different fiber orientations (P0°, P90°, V90°) and different process parameters. The effects of fiber orientation, feed speed, and wire speed on the surface morphology, surface waviness profile, and roughness of the as-sawn surface were analyzed. The results show that fiber orientation significantly affects the fiber damage mode and surface quality of the as-sawn surface, with the surface quality of the slices ranked as V90°>P0°>P0°. The surface morphology and surface roughness improves with decreasing feed speed and increasing wire speed. However, surface waviness profile peak-valley (PV) values increases with increasing the feed speed and wire speed. The study provides experimental references for process optimization and quality improvement in diamond wire saw cutting of 2.5D C/SiC composite materials.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Finite element analysis and experimental study on the cutting mechanism of SiCp/Al composite in laser ultrasonic elliptic vibration turning 激光超声波椭圆振动车削 SiCp/Al 复合材料切削机理的有限元分析和实验研究

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110389

Chenyang Xia, Jieqiong Lin, Mingming Lu, Xuejian Zhang, Shuang Chen

{"title":"Finite element analysis and experimental study on the cutting mechanism of SiCp/Al composite in laser ultrasonic elliptic vibration turning","authors":"Chenyang Xia, Jieqiong Lin, Mingming Lu, Xuejian Zhang, Shuang Chen","doi":"10.1016/j.mtcomm.2024.110389","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110389","url":null,"abstract":"SiCp/Al composites have excellent material properties and are increasingly being used in the aerospace, military, and electronic packaging industries. However, the inhomogeneity and non-conductivity of conventional turning (CT) results in poor material surface quality and high cutting forces, which seriously hinder the application of particlereinforced metal matrix composites. The thermal softening property of laser-assisted turning (LAT) and the intermittent cutting property of two-dimensional (2D) ultrasonic elliptical vibratory turning (UEVT) offer unique advantages in improving material surface quality. Therefore, a novel laser ultrasonic elliptical vibratory turning (LUEVT) machining technique is proposed to improve the machining of SiCp/Al composites with two different volume fractions. The effect of highfrequency intermittent machining on material processing was further investigated by adjusting the pulsed laser power. Finite element modelling was used to predict the machining state, surface roughness, and chip morphology between the workpiece and the PCD tool. The effects of varying the machining parameters during the experiment on the two composites were analysed. The results showed that the LUEVT of 25 % and 45 % SiCp/Al composites were reduced by 39.3 % and 30.7 % respectively compared to the CT cutting forces. The experiments verified the consistency of the surface roughness and chip morphology with the finite element simulation results. The stability of the cutting force during the cutting process is also improved, as the material removal process mainly takes the form of small particle fragmentation and matrix encapsulation.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Insights into effects of Fe doping on phase stability, martensitic transformation, and magnetic properties in Ni-Mn-Ti-Fe all-d-metal Heusler alloys 深入了解掺铁对 Ni-Mn-Ti-Fe 全金属 Heusler 合金的相稳定性、马氏体转变和磁性能的影响

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110415

Jiaxin Xu, Jing Bai, Yu Zhang, Keliang Guo, Qingshuang Ma, Xinjun Jiang, Jianglong Gu, Qiuzhi Gao, Liang Zuo

{"title":"Insights into effects of Fe doping on phase stability, martensitic transformation, and magnetic properties in Ni-Mn-Ti-Fe all-d-metal Heusler alloys","authors":"Jiaxin Xu, Jing Bai, Yu Zhang, Keliang Guo, Qingshuang Ma, Xinjun Jiang, Jianglong Gu, Qiuzhi Gao, Liang Zuo","doi":"10.1016/j.mtcomm.2024.110415","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110415","url":null,"abstract":"In this work, the effects of Fe doping on phase stability, martensitic transformation, and magnetic properties of NiMnTiFe ( = 3.125, 6.25, 9.375) all--metal Heusler alloys were systematically investigated by first-principles calculations. The results indicate a tendency for doped Fe atoms to aggregate within the NiMnTiFe alloys. As Fe concentration increases, a gradual reduction in both lattice constants and phase stability of austenite and martensite is observed. In the absence or presence of minimal Fe doping, both austenite and martensite exhibit antiferromagnetic behavior. However, at = 9.375, a transition to a ferromagnetic state is observed in the austenite phase. This transition is attributed to the activation of the ferromagnetic coupling effect in the austenite phase induced by Fe doping in the Ni-Mn-Ti alloy. In contrast, the martensite phase maintains its antiferromagnetic characteristics throughout the doping range. A comprehensive analysis of the electronic structure elucidates the underlying physical mechanisms responsible for the martensitic transformation and magnetic property changes.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

On microstructures and mechanical properties of automotive (Graphtie-TiB2)/Cu composites with different milling times 不同研磨时间的汽车（石墨-TiB2）/铜复合材料的微观结构和机械性能

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110388

Xirui Gao, Kangyi Deng, Hengqing Li, Ping Zhu, Xiumin Yang, Lei Zhang, Yangzhen Liu

{"title":"On microstructures and mechanical properties of automotive (Graphtie-TiB2)/Cu composites with different milling times","authors":"Xirui Gao, Kangyi Deng, Hengqing Li, Ping Zhu, Xiumin Yang, Lei Zhang, Yangzhen Liu","doi":"10.1016/j.mtcomm.2024.110388","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110388","url":null,"abstract":"Copper (Cu) matrix composites are the most attractive materials in rail transit, aerospace and other fields because of their excellent electrical conductivity and strength. The aim of this study was to determine the effect of milling time on the microstructure and mechanical properties of the (Graphtie-TiB)/Cu composites. The composites were prepared using rapid hot pressing sintering at the milling time of 4, 6, 8, 10 and 12. The structural, physical and mechanical properties of the composites was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and compression test. The results revealed that the particles size decreased with an increase in milling time, especially the particles size drop sharply during the first 4 h of milling, and the particles size directly decreased from 44.3 μm to about 13.2 μm. The full width at half maximum of diffraction peak increased gradually with an increase in milling time. The relative density, hardness, elastic modulus, electrical conductivity and compressive strength of the composites reached the maximum at 6 h, which were 99.1 %, 86.6 HV, 137.1 GPa, 45.6 %IACS, and 228.8 MPa, respectively. Compared with 12 h, the hardness, electrical conductivity and compressive strength at 6 h were increased by 5.7 %, 79.4 % and 56.9 %, respectively. Finally, the fracture mechanism of the composites was analyzed by observing the fracture morphology.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Efficient degradation of tetracycline by cobalt ferrite modified alkaline solution nanofibrous Ti3C2Tx MXene activated peroxymonosulfate system: Mechanism analysis and pathway 钴铁氧体修饰的碱性溶液纳米纤维 Ti3C2Tx MXene 活化过氧单硫酸盐体系高效降解四环素：机理分析与途径

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110417

Suqing Qin, Jin Chen, Xiaofeng Yang, XinLe Wang, Huiqi Zheng, Yuzhao Ma, Yanjun Li

{"title":"Efficient degradation of tetracycline by cobalt ferrite modified alkaline solution nanofibrous Ti3C2Tx MXene activated peroxymonosulfate system: Mechanism analysis and pathway","authors":"Suqing Qin, Jin Chen, Xiaofeng Yang, XinLe Wang, Huiqi Zheng, Yuzhao Ma, Yanjun Li","doi":"10.1016/j.mtcomm.2024.110417","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110417","url":null,"abstract":"Magnetic CoFeO nanoparticles have received considerable attention as an activator for peroxymonosulfate (PMS) in the degradation of tetracycline. However, it is still challenging to construct CoFeO composites with good dispersion and highly exposed reactive sites. Herein, the KOH fiber-functionalized MXene matrix decorated by cobalt ferrite nanoparticles (denoted as CoFeO@Alk-MXene) was developed by electrostatic self-assembly method. The layered fibrotic structure effectively disperses and fixes cobalt ferrite nanoparticles, increasing the exposure of reactive sites. The as-prepared CoFeO@Alk-MXene material exhibited rapid removal of 100% tetracycline hydrochloride (TC-HCl) within 10 minutes by activating PMS, leveraging the excellent conductivity of alkalized MXene and the efficient activation of transition metal atoms. The experimental and theoretical analysis revealed that the electron transfer process of Ti/Ti, Co/Co and Fe/Fe, as well as the free radical and non-free radical attack behaviors produced by the adsorption of PMS by the composite, are the primary mechanisms for achieving rapid removal of pollutants. A comprehensive degradation mechanism and potential pathways were proposed based on these findings. Overall, CoFeO@Alk-MXene/PMS emerges as a promising catalytic system for TC removal.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Prediction of the structure of polymer-coated cardboards produced by thermocompression using I-optimal design of experiment 利用 I-优化实验设计预测热压法生产的聚合物涂层纸板的结构

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110411

Allison Vercasson, Luc Choisnard, Elsa Lamberet, Sébastien Gaucel, Valérie Guillard, Hélène Angellier-Coussy

{"title":"Prediction of the structure of polymer-coated cardboards produced by thermocompression using I-optimal design of experiment","authors":"Allison Vercasson, Luc Choisnard, Elsa Lamberet, Sébastien Gaucel, Valérie Guillard, Hélène Angellier-Coussy","doi":"10.1016/j.mtcomm.2024.110411","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110411","url":null,"abstract":"The production of contrasted polymer-coated cardboards is necessary to establish the structure/properties relationships and produce the « just necessary » packaging materials. For that purpose, the impact of the processing parameters on the resulting structure of polymer-coated cardboards was modeled using a statistical Design of Experiment (DOE) approach. Five independent factors were considered: three numeric continuous factors, the pressure, the temperature, and the duration of thermocompression, one numeric discrete factor, the initial polymer film thickness, and one categorical factor, the cardboard type. Four responses were considered: the thicknesses of each of the three layers constituting polymer-coated cardboards (i.e., the free polymer, the impregnated, and the free cardboard) and the material’s curvature. The choice of the adequate DOE was first assessed using a Scoping Design and coupled with the characterization of the used polymer, i.e., poly(3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV). The I-optimal DOE was found to be the most suitable and was therefore implemented. To validate the model, the DOE was then used to produce two targeted structures, one with no impregnation of the polymer and another one with a complete impregnation of the cardboard. The values of thicknesses and curvature were not significantly different from the model predictions, therefore verifying the model.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Mechanical properties and cross-scale synergistic modification mechanism of micro-nano carbon fiber modified concrete 微纳米碳纤维改性混凝土的力学性能和跨尺度协同改性机理

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110401

Zhihang Wang, Erlei Bai, Biao Ren, Yuhang Du, Chaojia Liu

{"title":"Mechanical properties and cross-scale synergistic modification mechanism of micro-nano carbon fiber modified concrete","authors":"Zhihang Wang, Erlei Bai, Biao Ren, Yuhang Du, Chaojia Liu","doi":"10.1016/j.mtcomm.2024.110401","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110401","url":null,"abstract":"In order to explore the cross-scale synergistic modification effect of carbon fiber (CF) and carbon nanofiber (CNF) on the mechanical properties of concrete, based on CNF modified concrete (NCFC, with CNF volume content of 0.3 %), four kinds of micro-nano carbon fiber modified concrete (MNCFMC, with CNF volume content of 0.3 % and CF volume content of 0.1∼0.4 %) are prepared. For comparison, four kinds of CF modified concrete (CFMC, with CF volume content of 0.1∼0.4 %) are also prepared. The compressive, flexural and splitting tensile strength of concrete are tested, and the cross-scale synergistic modification mechanism is analyzed by SEM and MIP tests. The results show that CF and CNF have cross-scale synergistic improvement effect on the mechanical properties of concrete. The mechanical properties of concrete can be further improved by adding CF with appropriate content on the basis of the addition of CNF. With the increase of CF content, the compressive, flexural and splitting tensile strength of MNCFMC first increase and then decrease. The mechanical properties of MNCFMC are the best when the CF content is 0.2 %, the compressive, flexural and splitting tensile strength of MNCFMC increase by 14.12 %, 19.69 % and 30.32 %, respectively. Compared with CFMC, the mechanical properties of MNCFMC with the same CF content are better. The physical bond between CF and concrete matrix is poor, CNF can enhance the physical bond between CF and concrete matrix by attracting the deposition of cement hydration product crystals. When CF and CNF are added together, the pore size refinement and pore structure optimization effects of fiber on concrete are the best. When the CF content is 0.2 %, the average pore size and total pore volume of MNCFMC decrease by 30.66 % and 16.86 % compared with CFMC, respectively.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pure α-phase (FAPbI3)0.83(MAPbBr3)0.17 powder for efficient perovskite solar cells with enhancing reproducibility 用于高效过氧化物太阳能电池的纯 α 相 (FAPbI3)0.83(MAPbBr3)0.17 粉末，可提高重现性

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110398

Tianxiang Zhao, Yanchun Guo, Xia Yang, Qiu Xiong, Peng Gao, Lingyi Meng, Zhihua Xiong

引用次数: 0

Study on microstructure and corrosion behavior of T-joints of 2A12 and 2A97 aluminum alloys by FSW 通过 FSW 研究 2A12 和 2A97 铝合金 T 形接头的微观结构和腐蚀行为

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110368

Wen Li, Shaojie Li, Yang Nan, Xuepiao Bai, Weiping Li

引用次数: 0

Evolution of microstructure and mechanical properties of electroplated nanocrystalline Ni–Co coating during heating 电镀纳米晶 Ni-Co 涂层在加热过程中的微观结构和机械性能变化

IF 3.8 3区材料科学

Materials Today Communications Pub Date : 2024-09-12 DOI: 10.1016/j.mtcomm.2024.110414

Jiayi He, Zikai Wu, Chen Wang, Yuandong Peng, Ning Wu, Fenghua Luo

{"title":"Evolution of microstructure and mechanical properties of electroplated nanocrystalline Ni–Co coating during heating","authors":"Jiayi He, Zikai Wu, Chen Wang, Yuandong Peng, Ning Wu, Fenghua Luo","doi":"10.1016/j.mtcomm.2024.110414","DOIUrl":"https://doi.org/10.1016/j.mtcomm.2024.110414","url":null,"abstract":"Ni–Co alloy coating is applied to crystallizer surface to enhance its wear resistance for continuous steel casting. This study investigated the effects of heating temperature on the hardness, strength, and elongation of Ni–21 wt% Co coatings obtained by electroplating. The evolution of microstructure was analyzed by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The results indicated that the as-deposited coating had a mixed structure of nanocrystals and microcrystals, containing numerous nanotwins and stacking faults. Its hardness, tensile strength, yield strength, and elongation were 371 HV, 1170 MPa, 1117 MPa, and 13.8 %, respectively. After low-temperature heating, the number of nanocrystals decreased, whereas the fraction of microcrystals increased. At heating temperatures of 100–200 °C, a reverse Hall–Petch phenomenon occurred owing to the formation of annealing twins and the transformation of dislocation-emission mechanisms, resulting in a stable hardness and tensile strength. As the heating temperature was further increased, the grains continuously grew, thereby decreasing the hardness and tensile strength. After annealed at 400 °C, the elongation reached 32.5 %, whereas the hardness, tensile strength, and yield strength decreased to 200 HV, 662 MPa, and 577 MPa, respectively.","PeriodicalId":18477,"journal":{"name":"Materials Today Communications","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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