Materials Research Express最新文献_第5页

Microstructure and mechanical characteristics of Al1050/B2O3+Cu hybrid surface nanocomposite fabricated using friction stir processing 利用搅拌摩擦加工技术制备的 Al1050/B2O3+Cu 混合表面纳米复合材料的微观结构和力学特性

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad74cc

Siamak Pedrammehr, Moosa Sajed, Sajjad Pakzad, Ahad Zare Jond, Mir Mohammad Ettefagh and Saman Tutunchilar

{"title":"Microstructure and mechanical characteristics of Al1050/B2O3+Cu hybrid surface nanocomposite fabricated using friction stir processing","authors":"Siamak Pedrammehr, Moosa Sajed, Sajjad Pakzad, Ahad Zare Jond, Mir Mohammad Ettefagh and Saman Tutunchilar","doi":"10.1088/2053-1591/ad74cc","DOIUrl":"https://doi.org/10.1088/2053-1591/ad74cc","url":null,"abstract":"In the realm of advanced materials engineering, the development of hybrid nanocomposites has garnered significant attention due to their superior mechanical properties and potential applications. The primary aim of this research is to develop a surface hybrid nanocomposite using Al1050 aluminium alloy (5 mm thickness) as the base material through friction stir processing. B2O3 nano-powder, averaging 100 nm in size, and Cu micro-powder, averaging 5 μm in size, were incorporated into the aluminium surface in various volume ratios using the Friction Stir Processing (FSP). The processing parameters included a tool rotational speed of 1250 rpm, a feed rate of 50 mm min−1, and a tilt angle of 3°. The number of passes was set at two levels: 1 and 3 passes. The influence of the volume ratio of constituents and the number of passes on the microstructure and mechanical properties of the resulting composite was thoroughly explored. The samples underwent tensile tests, microhardness tests, and metallographic examinations using both Optical Microscopy (OM) and Field Emission Scanning Electron Microscopy (FE-SEM). The composite with 25%-B2O3-75%-Cu composition exhibited the highest stress and hardness values, measuring 139 MPa and 58.14 HV, respectively. The enhanced strength of this sample is attributed to the presence of additives and the resultant grain size.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"6 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181215","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 Cu content on the microstructure and properties of sintered Fe-0.8C-xCu antifriction materials 铜含量对烧结 Fe-0.8C-xCu 抗摩擦材料微观结构和性能的影响

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad72cf

Jiaxin Li, Han Feng, Jianhua Zhang, Pengqi Chen and Jigui Cheng

{"title":"Effect of Cu content on the microstructure and properties of sintered Fe-0.8C-xCu antifriction materials","authors":"Jiaxin Li, Han Feng, Jianhua Zhang, Pengqi Chen and Jigui Cheng","doi":"10.1088/2053-1591/ad72cf","DOIUrl":"https://doi.org/10.1088/2053-1591/ad72cf","url":null,"abstract":"Ferrous antifriction materials (FAMs) play a crucial role in powder metallurgy. Previous studies have primarily focused on exploring the antifriction properties of Fe-C-Cu materials with low copper content (0–5 wt%), while there have been fewer studies on high copper content FAMs. In this study, to investigate the effect of Cu content on the microstructure and properties of sintered FAMs, Fe-0.8C-xCu (x = 5–25 wt%) materials were prepared by powder metallurgy method. The density, microstructure, mechanical performance, friction and wear properties of the samples were analyzed. The results demonstrated a significant change in the relative density, hardness, friction and wear properties of sintered Fe-0.8C-xCu samples with increasing Cu content. Particularly, the Fe-0.8C-15Cu samples exhibited outstanding properties, with a relative density of 77.8%, a hardness of 43 HRB, crushing strength of 380 MPa, an average friction coefficient of 0.21, and a wear rate of 1.36 × 10−8 mm3 N·mm−1. The primary wear mechanisms of the Fe-0.8C-xCu specimens include abrasive wear, adhesion wear, chafing fatigue, pitting, and oxidation. This study aims to provide an experimental and theoretical basis for the development of ferrous antifriction materials suitable for heavy-load conditions.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"10 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181179","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

Simple precipitation synthesis and solar light-driven photocatalytic degradation of Ag3PO4 floating photocatalysts Ag3PO4 漂浮光催化剂的简单沉淀合成和太阳光驱动的光催化降解

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad719a

Thi Thu Hien Bui, Pham Tran Anh Nguyen, Thanh Mai Vu, Thi Huong Giang Tran, Thi Kim Chi Tran and Thi Thuong Huyen Tran

引用次数: 0

Effect of addition of Ce and accumulative roll bonding on structure-property of the Mg-Ce-Al hybrid composite and its prediction and comparison using artificial neural network (ANN) approach 添加 Ce 和累积轧制粘接对镁-钴-铝混合复合材料结构-性能的影响以及使用人工神经网络 (ANN) 方法对其进行预测和比较

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad7449

Gajanan Anne, Nagaraj Bhat, Vishwanatha H M, Ramesh S, Maruthi Prashanth B H, Priyaranjan Sharma, Aditya Kudva S, C Jagadeesh and Yashwanth Nanjappa

{"title":"Effect of addition of Ce and accumulative roll bonding on structure-property of the Mg-Ce-Al hybrid composite and its prediction and comparison using artificial neural network (ANN) approach","authors":"Gajanan Anne, Nagaraj Bhat, Vishwanatha H M, Ramesh S, Maruthi Prashanth B H, Priyaranjan Sharma, Aditya Kudva S, C Jagadeesh and Yashwanth Nanjappa","doi":"10.1088/2053-1591/ad7449","DOIUrl":"https://doi.org/10.1088/2053-1591/ad7449","url":null,"abstract":"Light alloys play a crucial role in realizing the national strategy for energy conservation and emission reduction, as well as promoting the upgrading of manufacturing industries. Mg/Al composite laminates combine the corrosion resistance and ductility of aluminium alloy with the lightweight characteristics of magnesium alloy. The addition of Ce (rare earth elements) can improve the mechanical properties of magnesium via grain refinement and improve the ductility of the hybrid composites. In the present work, an investigation on addition of Ce into the Mg/Al matrix through Accumulative Roll Bonding (ARB) has been presented. The Mg/Ce/Al hybrid composite consists of Mg-4%Zn alloy and Al 1100 alloy with 0.2% Ce particles added between the dissimilar layers. The changes occurred in the evaluation of microstructure, corrosion and mechanical properties of the Mg/Ce/Al hybrid composite as a result of deformation process and also the addition of Ce have been explicated. The ARB parameters: temperature, rolling speed, percentage reduction, and aging time, have been studied. An increase of about 2.36 times in strength and hardness of the hybrid composite, has been reported. Further, the structure–property relations in the Mg/Ce/Al hybrid composites were aslo predict and compare using machine learning models: Decision Tree and Multi-Layer Perceptron (MLP) models.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"10 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181209","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

Dispersion of ZnO or TiO2 nanoparticles onto P. australis stem-derived biochar for highly efficient photocatalytic removal of doxycycline antibiotic under visible light irradiation 将 ZnO 或 TiO2 纳米颗粒分散到蕨类植物茎衍生生物炭上，在可见光照射下高效光催化去除强力霉素抗生素

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad7448

Nguyen Thanh Tuoi, Bui Thi Minh Nguyet, Tran Ngoc Tuyen, Pham Khac Lieu, Dinh Quang Khieu and Nguyen Van Hung

{"title":"Dispersion of ZnO or TiO2 nanoparticles onto P. australis stem-derived biochar for highly efficient photocatalytic removal of doxycycline antibiotic under visible light irradiation","authors":"Nguyen Thanh Tuoi, Bui Thi Minh Nguyet, Tran Ngoc Tuyen, Pham Khac Lieu, Dinh Quang Khieu and Nguyen Van Hung","doi":"10.1088/2053-1591/ad7448","DOIUrl":"https://doi.org/10.1088/2053-1591/ad7448","url":null,"abstract":"Biochar (BC) derived from reed stems was prepared by high-temperature pyrolysis, and two types of ZnO/biochar (ZBC) and TiO2/biochar (TBC) composite materials were synthesized via a simple hydrolysis method. These composites, compared to pure ZnO and TiO2, exhibit not only improved but significantly enhanced crystalline structures and larger specific surface areas. This enhancement in the physical and chemical properties of ZBC and TBC composites is a crucial aspect of our research, as it leads to a distinct red-shifted absorption edge and excellent visible-light absorption characteristics. The photocatalytic degradation efficiency of ZBC and TBC composite materials, a key finding of our study, was evaluated using doxycycline antibiotic as a simulated pollutant under visible-light irradiation. The results demonstrate a 6.0-fold and 7.3-fold increase in photocatalytic degradation efficiency of ZBC and TBC composites compared to pure ZnO and TiO2, respectively, further underscoring the significance of these enhanced properties. Furthermore, active species trapping experiments reveal that ·OH radicals are the dominant reactive species in the photocatalytic degradation process of doxycycline. A Langmuir–Hinshelwood kinetic model accurately represents this degradation process. Kinetic data indicate that the degradation rate constants (k) of ZBC and TBC catalysts are 4.314 × 10−2 min−1 and 3.416 × 10−2 min−1, respectively. The photocatalysts exhibit no significant decrease in degradation efficiency for ZBC and TBC even after the fourth cycle, indicating their relatively high reusability. These results suggest that ZBC and TBC materials can be used as stable, efficient, cost-effective, and sustainable photocatalytic composite materials for antibiotic-contaminated wastewater treatment.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"10 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181211","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

Cluster-spin-glass behavior in new ternary RE2PtGe3 compounds (RE = Tb, Dy, Ho) 新型三元 RE2PtGe3 化合物（RE = Tb、Dy、Ho）中的簇自旋玻璃行为

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad7444

L S Litzbarski, M J Winiarski, I Oshchapovsky, P Skokowski, K Synoradzki, T Klimczuk and B Andrzejewski

引用次数: 0

Influence of HSS drill coatings on surface finish and cylindricity of AA6061/C/ZrO2 composite in CNC drilling operations under dry conditions 干燥条件下数控钻孔作业中高速钢钻头涂层对 AA6061/C/ZrO2 复合材料表面光洁度和圆柱度的影响

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-08 DOI: 10.1088/2053-1591/ad7560

Haja Syeddu Masooth P, Jayakumar V, Bharathiraja G and Keno Teshome Mekonnin

{"title":"Influence of HSS drill coatings on surface finish and cylindricity of AA6061/C/ZrO2 composite in CNC drilling operations under dry conditions","authors":"Haja Syeddu Masooth P, Jayakumar V, Bharathiraja G and Keno Teshome Mekonnin","doi":"10.1088/2053-1591/ad7560","DOIUrl":"https://doi.org/10.1088/2053-1591/ad7560","url":null,"abstract":"This study aims to evaluate the effect of HSS drill tool coatings, namely single-layer TiN, single-layer AlCrN, and double-layer AlTiN + TiSiXN (Durana), on the surface roughness and cylindricity of AA6061 (90 wt%)/C (5 wt%)/ZrO2 (5 wt%) hybrid composite material processed by the stir casting method. The fabricated sample was examined for the uniform particle distribution of reinforcements using Scanning Electron Microscope. The drilling operation was carried out on the fabricated in a CNC machining center by setting the spindle speeds of 800, 1200, and 1600 rpm, depths of cut of 0.5, 1, and 1.5 mm, and feeds of 50, 100, and 150 mm/rev. An orthogonal array (L27) designed by Taguchi’s method was used as the design of the experiment for the optimization of the best cutting parameters and coating. Surface roughness and cylindricity errors were determined for the 27 experimental runs. Field emission scanning electron microscopic (FESEM) examination and Energy Dispersive Spectroscopy (EDS) were used to analyze the surface integrity and elemental composition, respectively. The results revealed that Durana had a significant effect on the surface substrate with minimum surface roughness (Ra) of 1.666 μm and obtained the minimum cylindricity error for the parameters of depth of cut 0.5 mm, spindle speed of 1200 and feed of 100 mm rev−1.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"49 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181210","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

Sodium salt of dodecyl benzene sulphonic acid as an effective corrosion inhibition for different heat-treated steel in sulphuric acid medium 十二烷基苯磺酸钠盐作为不同热处理钢在硫酸介质中的有效缓蚀剂

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-06 DOI: 10.1088/2053-1591/ad74cb

P R Prabhu, Jilna Jomy, Deepa Prabhu

{"title":"Sodium salt of dodecyl benzene sulphonic acid as an effective corrosion inhibition for different heat-treated steel in sulphuric acid medium","authors":"P R Prabhu, Jilna Jomy, Deepa Prabhu","doi":"10.1088/2053-1591/ad74cb","DOIUrl":"https://doi.org/10.1088/2053-1591/ad74cb","url":null,"abstract":"The purpose of this work is to use electrochemical and gravimetric techniques to investigate the inhibition of DBSS on the corrosion of heat-treated dual-phase AISI 1040 steel in a 0.5 M sulphuric acid solution at 35 °C. The corrosion studies are performed by potentiodynamic polarization study (PDP), electrochemical impedance study (EIS), and gravimetric method. To confirm the inhibition surface characterization like x-ray diffraction technique (XRD) analysis, scanning electron microscopy (SEM), and EDS analysis are performed. Depending on the phase change of metals due to heat treatment, the corrosion inhibition of the heat-treated metal increased when it was exposed to 0.5 M H<sub>2</sub>SO<sub>4</sub> at 35 °C in the presence of dodecyl benzene sulphonic acid sodium salt (DBSS) inhibitor. The highest inhibition efficiency of 63%, 82%, 87%, 43%, and 63% was obtained for AISI 1040 steel at heat treatment conditions of Normalized, Quenched at 700 °C, Quenched at 750 °C, Quenched at 790 °C and Quenched at 900 °C respectively. In the gravimetric and electrochemical study, the IE increases with the increase with the concentration of DBSS unto 75% from gravimetric analysis and 87% from PDP analysis for Quenched at 750 °C and 790 °C respectively. The metal protection is achieved by heat treatment process as well as by using DBSS as inhibitor. Corrosion inhibition on the metal’s surface was confirmed by SEM and XRD. In addition, the adsorption of DBSS on the anodic and cathodic sites of the metal surface was well explained.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"104 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181214","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

Microwave absorption properties of Co/C and Ni/C composite nanofibers prepared by electrospinning 电纺丝法制备的 Co/C 和 Ni/C 复合纳米纤维的微波吸收特性

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-06 DOI: 10.1088/2053-1591/ad7445

Sa Zhang, Chao Xiong, Junhui Yin, Haitao Sun, Ziyuan Qi, Huiyong Deng, Kaibo Cui

{"title":"Microwave absorption properties of Co/C and Ni/C composite nanofibers prepared by electrospinning","authors":"Sa Zhang, Chao Xiong, Junhui Yin, Haitao Sun, Ziyuan Qi, Huiyong Deng, Kaibo Cui","doi":"10.1088/2053-1591/ad7445","DOIUrl":"https://doi.org/10.1088/2053-1591/ad7445","url":null,"abstract":"Carbon nanofibers with Co, Ni nanoparticle were synthesized by a two-step process involving electrospinning and heat treatment. Their phase composition, microstructure, elemental composition and electromagnetic characteristics were characterized using x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and vector network analyzer (VNA). The microwave absorption performance of these carbon nanofibers was also studied. The results indicate that these composite nanofibers are intact and consist of amorphous carbon and face-centered cubic structured magnetic metals. The resultant metal nanoparticles are uniformly dispersed along carbon-based nanofibers which enhance the synergistic and interfacial effects between magnetic loss and dielectric loss. When the thicknesses of the absorbers are 1.5 mm, the absorption bandwidths (RL ≤ −10 dB) are approximately 4 GHz and 2.5 GHz for the Co/C, Ni/C composite nanofibers, respectively, which are obviously superior to pure carbon nanofibers. Co/C composite nanofibers exhibit a wider absorption band range and stronger microwave absorption intensity compared to Ni/C composite nanofibers, attributed to their excellent electromagnetic impedance matching and attenuation characteristics. This indicates that the Co/C composite nanofibers are promising candidates for novel microwave absorbing materials.","PeriodicalId":18530,"journal":{"name":"Materials Research Express","volume":"173 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181234","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

Research on influence factors of small punch test to evaluate the mechanical properties of gradient nanostructured material 评价梯度纳米结构材料力学性能的小冲压试验影响因素研究

IF 2.3 4区材料科学

Materials Research Express Pub Date : 2024-09-06 DOI: 10.1088/2053-1591/ad7447

Xinjun Yang, Xiangwei Liao, Dongxiang Wang, Jiyun Du, Fangyang Yuan, Wei Yu, Qingsheng Li

引用次数: 0