Materials Research Express最新文献

{"title":"Nonlinear dynamic behavior of single-layered black phosphorus with an attached mass","authors":"Die Peng, Yiqing Zhang","doi":"10.1088/2053-1591/ad5815","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5815","url":null,"abstract":"\u0000 The investigation of black phosphorus-based (BP)-based mass sensors provides theoretical support for the development of mass-detection devices. This study examines the non-linear dynamic behavior of a rectangular single-layered BP (SLBP) with an attached mass through the utilization of molecular dynamics (MD) simulations and a nonlinear orthotropic plate model (NOPM) with a concentrated mass. The results indicate that significant deformation of an SLBP with an attached mass necessitates consideration of geometric nonlinearity, although the attached mass does not affect the deformation. Additionally, this paper discusses the impact of the attachment mass and the amplitude of harmonic force on the non-linear forced vibration of the SLBP. It is observed that as the attachment mass increases, the nonlinear vibration resonance frequency decreases, while the peak amplitude increases. Furthermore, the thermal nonlinear vibration of SLBP with an attached mass has been investigated, revealing that an increase in the attached mass leads to a decrease in the nonlinear vibration frequency but an increase in the amplitude of the nonlinear vibration of SLBP with an attached mass. Overall, comparison with MD simulation results, this investigation suggests that NOPM with a concentrated mass effectively describes the nonlinear vibration behavior of an SLBP with an attached mass, providing theoretical support for designing such devices to detect attached masses.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"52 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing drilling parameters for fly ash-filled hemp/epoxy composites: Investigating drill bit geometries, feed rates, and spindle speeds","authors":"M. Roy Choudhury, H. Dutta, M. S. Srinivas, Kishore Debnath, T. Arunkumar, Vikas Upadhyay","doi":"10.1088/2053-1591/ad5816","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5816","url":null,"abstract":"\u0000 This article investigates the drilling behavior of hemp fiber-reinforced epoxy composites, both unfilled and fly ash-filled. Drilling performance tests were conducted at varying feed rates (8, 16, and 24 mm/min) and spindle speeds (700, 1400, and 2100 RPM) using three drill geometries: parabolic, 8-facet, and dagger. The fly ash-filled hemp/epoxy composite showed significant reductions in maximum thrust force (25.09%, 19.92%, and 21.43%) and torque (80%, 79.87%, and 59.25%) when drilled with parabolic, 8-facet, and dagger drill bits, respectively, compared to the unfilled composite. The maximum drilling temperature reached 90.6°C during cutting and decreased to 71.7°C post-drilling. Overall, the fly ash-filled composites demonstrated superior performance in terms of drilling-induced stresses and damage.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"50 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the influence of stacking sequence on the mechanical properties of flax-ramie bi-quadratic layered hybrid epoxy composites","authors":"Dittakavi Tarun, Govrishankar Ganesan, K. Syam Sundar","doi":"10.1088/2053-1591/ad5814","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5814","url":null,"abstract":"\u0000 Over the past two decades, there has been a remarkable surge in the utilization of composites, with fiber-reinforced polymer composites gaining significant traction owing to their commendable structural performance. Concurrently, extensive research has been conducted to assess the behavior of composite materials, focusing on various parameters such as fiber type, lamination order, matrix type, and the inclusion of filler materials. In this study, we investigated the mechanical properties of flax (F)/ramie (R) epoxy hybrid composites, specifically exploring the effects of different lamination sequences. Four distinct lamination sequences were chosen: FFRR, FRFR, FRRF, and RFFR. The composites were fabricated using compression molding techniques, adhering to ASTM standards for the evaluation of mechanical properties including tensile strength, flexural strength, impact strength, and interlaminar shear strength. Among the laminate sequences studied, FRFR exhibited the lowest void content at 4.76%, while RFFR composites showed the highest void content at 16.67%. The most favorable results were observed with FRFR composites, boasting a tensile strength of 77.06 MPa, impact strength of 13.36 kJ/m2, and interlaminar shear strength of 8.13 MPa. Notably, the FFRR composite exhibited the highest flexural strength at 118.09 MPa. Additionally, scanning electron microscopy (SEM) analysis was conducted to investigate surface morphology and identify reasons for failure.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"46 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141345252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metallurgical and mechanical properties of marine grade AA5356 using wire arc additive manufacturing","authors":"Muthu Kumaran A, S. Jeyakumar, K. Jayakumar","doi":"10.1088/2053-1591/ad5817","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5817","url":null,"abstract":"\u0000 In the current work, a Gas metal arc welding (GMAW)-based Wire Arc Additive Manufacturing (WAAM) procedure was used to build a wall construction of measuring AA5356 on an AA5083 base plate. Two locations along the horizontal deposition direction of the wall structure and two orientations of deposition (horizontal and vertical) of 5356 were investigated for microstructure and mechanical characteristics. Mechanical characteristics were tested at two wall locations using fractography, tensile testing, and microhardness testing. A microstructure analysis reveals a mixture of columnar grain structure and coarser intermetallics in the remelting zone, with finer granular structure in the central region. The horizontal direction of 5356 deposition exhibited a highest elongation and tensile strength of 4.4 % and 249 MPa than the vertical direction. For the horizontal and vertical orientations, the average microhardness values were determined to be 80 HV and 72 HV, respectively. Fracture analysis of the tensile samples showed that the deposited metal had a ductile mode of failure with a predominance of dimples with tearing shape. This research offers significant insights into wall structure fabrication and mechanical feature analysis.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"42 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141345074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of different pretreatments on Ti/RuO2-TiO2 anode","authors":"Zheng Yi Li, Yang Xu, Zhaohui Han, Shenggang Zhou, Sikang Wei, Lei Xu","doi":"10.1088/2053-1591/ad5813","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5813","url":null,"abstract":"\u0000 In this study, H2C2O4, H2SO4, HNO3, and HCl were used to etch the TA2 titanium matrix at the same concentration and temperature, and the effects of different acid etching methods on the properties of the titanium matrix and Ru-Ti electrode were investigated. The surface morphology of the titanium substrate and anode after acid etching was observed by scanning electron microscopy (SEM), while the electrochemical performance of the anode was determined by cyclic voltammetry (CV), linear sweep voltammetry (LSV), and tafel plots. SEM observations showed that H2C2O4 had the best etching effect on the titanium substrate, as the scratches were uniform, and the surface cracks of the prepared anode reached 4-6 µm; Analysis of the CV curves revealed that the Ti/RuO2-TiO2 anode prepared by H2C2O4 etching had the highest surface charge capacity (172 mC) compared to the anodes prepared by other acid etchings, while the LSV curves showed that the Ti/RuO2-TiO2 anode after H2C2O4 etching had the lowest polarization potential (1.232 V). Tafel curve analysis revealed that the corrosion potential of the Ti anode prepared by H2C2O4 etching was 0.203 V, and the self-corrosion current density was -5.11 A/cm2, indicating that the corrosion resistance of the Ti anode prepared by H2C2O4 treatment is the weakest. X-ray photoelectron spectroscopy analysis showed that the electrode surface changed from Ru4+ to Ru3+ after corrosion, with the Ti2p spectra showing similar transition from Ti4+ to Ti3+.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silver nanoparticles alleviate the impact of soil contamination and wastewater irrigation on rosemary plants: modulating of gene expression and secondary metabolites","authors":"N. A. T. Al Kashgry, Hadeer Darwish, Nouf Aljomiha, Sarah Alharthi, Aisha A. M. Alayafi, Ahmed Fallatah, Bahig A. El-Deeb, Hany G. Abd El-Gawad, Mohammed Hewidy, Nadi Awad Al-Harbi, S. Al-Qahtani, Modhi O. Alotaibi, Rabaa Algotiml, Ahmed Noureldeen","doi":"10.1088/2053-1591/ad5788","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5788","url":null,"abstract":"\u0000 A number of obstacles, including irrigated wastewater and soil contamination, arise in the growth of aromatic and medicinal plants. This study aimed to reduce the effects of contaminated soil and wastewater irrigation on rosemary (Rosmarinus officinalis L.) plants by using biosynthesized silver nanoparticles (AgNPs) produced by the ginger (Zingiber officinale) plant extract. The AgNPs were characterized using Attenuated Total Reflection Fourier Transform Infrared (ATR-FTIR). The experimental design involved three distinct groups of plants: one group was irrigated with regular tap water, another group was rooted in soil contaminated by sewage-wastewater and irrigated with processed wastewater, and the final group consisted of plants grown in wastewater-contaminated soil, irrigated with processed wastewater, and sprayed with 200 mM L-1 AgNPs. The study also examined the impact of different treatments on gene expression and secondary metabolite levels in rosemary plants. According to HPLC investigations, nineteen phenol compounds and flavonoids were identified in a methanolic extract of rosemary that was grown in contaminated soil, irrigated with wastewater, and sprayed with AgNPs. Plants treated with wastewater and nanoparticles produced quantities of secondary compounds, including resvertol, vanillic acid, and gallic acid with 1.11, 0.15, and 0.01 mg g-1 respectively, which are all regarded as significant antioxidants employed in the pharmaceutical industry. Hexokinase synthase (HK), geranyl diphosphate synthase (GPPS), and linalool synthase (LS) coding genes were found to have highly expressed expressions when plants grown in contaminated soil, wastewater-irrigated plants, and nanoparticle-sprayed plants, respectively, at a 23.2- and 5.54-fold level, where the HK gene was 8.7 times more strongly expressed. Conversely, plants grown in contaminated soil and irrigated with treated wastewater showed downregulation of these genes. Conclusively, using silver nanoparticles significantly reduced the influence of wastewater pollution on secondary metabolites in rosemary plants, which was increased by the gene expression results and was completely consistent with HPLC analysis.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"87 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the use of cobalt and nickel based nanoalloys as cement mortar additives","authors":"Emre Karaduman, M. Piskin","doi":"10.1088/2053-1591/ad5789","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5789","url":null,"abstract":"\u0000 The usage potential of chemical and green synthesized cobalt (Co) and nickel (Ni) nanoalloys (CoNiNAs) as mortar additives at different ratios were evaluated. The CoCl2 and NiCl2 metallic salt solutions were mixed in volume ratios of 1- 1, 1-2 and 2-1 and reduced with NaBH4 and St. John’s Wort aqueous extract, respectively. The obtained Co-Ni based complex nanoalloys were analyzed by Ultraviolet-visible Spectroscopy (UV-Vis), X-Ray Diffraction Analysis (XRD), Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR), and Dynamic Light Scattering Particle Size Analyzer (DLS). The effect of CoNiNAs was investigated based on the amount used in mortar, flexural and compressive strengths of mortar, setting time retarder property, and carbonation depth measurements of mortars and nanoalloy form based on whether solid(chemical synthesise) or liquid(green synthesise). The results showed that the chemical synthesized CoNiNAs were amorphous metal-metaloxide complex structures with small spherical particles, and low dispersity index, while green synthesized complex were more crystalline structure and smaller sizes. The mortar properties were affected by Co and Ni synthesis ratios and addition amounts. The results indicated that the incorporation of CoNiNAs led to an increase in setting times of mortar. Furthermore, the \"CN\" 2% sample exhibited the highest compression (49.10±1.19 MPa) and flexural (8.19±0.20 MPa) strengths. In addition, the \"CN2\" 1% sample exhibited the lowest carbonation depth (2.95±0.35 mm) compare to other samples. Overall, mortars with CoNi- NAs additives may be used at high temperature environment, and long shipment times due to setting time retarder effect and without losing necessary physical properties.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"19 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An overview on recent approaches on drying of natural rubber materials","authors":"Benphil C Mathew, Joseph John Marshal, Sivasubramanian Palanisamy, Nadir Ayrilmis","doi":"10.1088/2053-1591/ad5641","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5641","url":null,"abstract":"\u0000 Rubber is a widely used material in various industries, including automotive, construction and medical. Rubber is often manufactured in wet form and must be dried to remove excess moisture and improve its mechanical properties. There are several methods for drying rubber, including vacuum drying, air drying, freeze drying and microwave drying. Microwave drying is a relatively new and promising method for drying rubber. This technology uses electromagnetic radiation in the microwave range to generate heat in the material, causing the moisture to evaporate. Microwave drying offers several advantages over traditional drying methods, including faster drying times, lower energy consumption and improved product quality. The rubber drying process is a complex process that consists of several factors such as humidity, temperature and drying time. Microwave drying is no exception and requires careful optimization of the process parameters to achieve optimal drying results. Research is currently underway to study the effects of microwave drying on rubber properties, including the physical, mechanical, chemical and thermal properties of the material. In this context, the article aims to provide an overview of the rubber drying process, with a particular focus on microwave drying. The article reviews the literature on the use of microwave drying for rubber and highlights the advantages and limitations of this method. The post also discusses the factors affecting the microwave drying process and their impact on the quality of the dried rubber. Finally, the paper identifies the gaps in our understanding of microwave drying of rubber and suggests potential areas for future research.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":"113 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agro waste reinforcement of metal matrix composites, a veritable sustainable engineering achievement, or an effort in futility? A critical review","authors":"F. Ben, P. Olubambi","doi":"10.1088/2053-1591/ad5642","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5642","url":null,"abstract":"\u0000 The utilization of agro waste as reinforcement in metal matrix composites (MMCs) has sparked interest regarding its feasibility and sustainability in engineering practices. Compared to synthetic reinforcements, its efficacy as a potentially cost-effective and environmentally friendly alternative has been explored by diverse studies. This review critically examines existing literature on agro waste-based reinforced MMCs, evaluating experimental findings on mechanical, tribological, density, and corrosion performance from a sustainable engineering perspective. Furthermore, it explores the innovative strategy of employing multi-component metal matrix composites to fabricate composites with improved performance attributes. The utilization of multi-component reinforcements has the capability to tackle issues like the challenge of disproportionate reduction in ductility and toughness peculiar to monolithic and hybrid MMCs. Despite promising results in some studies, numerous unexplored research areas and gaps remain, emphasizing the need for further investigation to provide valuable guidance for future research and development of agro waste in sustainable engineering applications.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":" 61","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of current density on the morphology and electrochemical properties of nanotubular TiO2 for implant applications.","authors":"Toan Van Le, Tuan Q. Ta, Vuong-Hung Pham","doi":"10.1088/2053-1591/ad5643","DOIUrl":"https://doi.org/10.1088/2053-1591/ad5643","url":null,"abstract":"\u0000 This study focuses on investigating the influence of current density (i) (A/dm2) at values of 0.5 A/dm2, 1.0 A/dm2, 1.5 A/dm2, and 2.0 A/dm2 on the surface structure of titanium dioxide (TiO2) nanotubes in an ethylene glycol solvent containing a certain amount of fluoride salt and water. The surface structure observed via FESEM images reveals that different current densities yield different TiO2 nanotubes structures, predominantly in the form of anatase TiO2 crystals. EIS and CV measurements indicate that at a current density of i = 1.5 A/dm2, the TiO2 nanotubes layer exhibits corrosion resistance performance up to 90.06% compared to the bare titanium (Ti) samples. Confocal laser scanning microscopy (CLSM) demonstrates enhanced attachment of BHK cells on anodized titanium surfaces compared to unmodified controls. These findings suggest that TiO2 nanotubes present a biocompatible material with promising potential for biomedical implant applications.","PeriodicalId":510378,"journal":{"name":"Materials Research Express","volume":" 717","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}