Journal of Materials Science Research最新文献

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Mechanical Performance of Hybrid Graphene Nanoplates, Fly-Ash, Cement, Silica, and Sand Particles Filled Cross-Ply Carbon Fibre Woven Fabric Reinforced Epoxy Polymer Composites Beam and Column 混合石墨烯纳米板、粉煤灰、水泥、二氧化硅和沙子颗粒填充交叉层碳纤维编织织物增强环氧聚合物复合材料梁和柱的力学性能
Journal of Materials Science Research Pub Date : 2023-04-10 DOI: 10.5539/jmsr.v12n1p22
T. Quadflieg, V. Srivastava, T. Gries, Shantanu Bhatt
{"title":"Mechanical Performance of Hybrid Graphene Nanoplates, Fly-Ash, Cement, Silica, and Sand Particles Filled Cross-Ply Carbon Fibre Woven Fabric Reinforced Epoxy Polymer Composites Beam and Column","authors":"T. Quadflieg, V. Srivastava, T. Gries, Shantanu Bhatt","doi":"10.5539/jmsr.v12n1p22","DOIUrl":"https://doi.org/10.5539/jmsr.v12n1p22","url":null,"abstract":"The main goal of this study is to reduce the brittleness of a fibre-reinforced cement base structure when exposed to the effects of graphene nanoplates, fly ash, silica, sand, and cement fillers to better understand the effect of hybrid nano/micro particle fillers on the mechanical performance of cross-ply carbon fibre reinforced epoxy resin composites. A three-point bending test through the width was used to measure flexural strength. The impact tests Izod at low impact velocity and Charpy through the thickness were used to determine the dynamic fracture strengths of pre-cracked and non-cracked composite samples. Also, the compressive test method was used to measure the compressive strength of hybrid particles and short glass fibre-reinforced epoxy resin composite square and circular columns. The results show compressive strength and flexural strength. Izod impact energy, Charpy impact energy, and dynamic fracture toughness of hybrid nano/microparticle-filled fibre composites have higher values than virgin fibre composites due to the influence of graphene nanoparticles and perfect interface bonding between two dissimilar molecules of nano and microparticles, which improve the fracture toughness and absorb impact energy. Overall, the results indicate that molecules of nano/microparticle-filled carbon fibre and glass fibre-reinforced epoxy resin composites can be used in aggressive environments because of the improved mechanical properties in comparison to the virgin fibre composites. In addition, SEM micrographs clearly indicate that nano- and microparticles are resistant crack propagation and deboned of matrix fibres.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84423361","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}
引用次数: 0
An Improved Model for Estimation of Mechanical Properties of Polymer-Clay Nano-Composites 聚合物-粘土纳米复合材料力学性能评估的改进模型
Journal of Materials Science Research Pub Date : 2023-02-27 DOI: 10.5539/jmsr.v12n1p1
A. Al-Abduljabbar
{"title":"An Improved Model for Estimation of Mechanical Properties of Polymer-Clay Nano-Composites","authors":"A. Al-Abduljabbar","doi":"10.5539/jmsr.v12n1p1","DOIUrl":"https://doi.org/10.5539/jmsr.v12n1p1","url":null,"abstract":"Polymer-clay nanocomposites are more popular in many industries and applications due to improved mechanical and gas barrier properties over pure polymers and classical polymer-based composites. The mechanism by which clay platelets, with thicknesses in the nanometer range, as opposed to the hundred-nanometer range in the other two dimensions, introduce the mechanical and other properties improvement can be attributed to their high efficiency in creating discontinuities to flows through the bulk matrix polymer material. However, the extent of this improvement depends on the success of separation or achieving full exfoliation of the clay platelets through the bulk matrix. Since such full exfoliation is not achievable experimentally, the aspect ratio of the filler particles is not a simple value that mathematical models employ to describe mechanical properties. In this work, a modification is proposed to improve such models by using relationships utilizing different concentrations of varying filler platelets thicknesses. The improvements in elastic tensile modulus are discussed with consideration of the effect of clay platelet inclusions geometry as depicted through the proposed modification to considered models to capture the effect of nano-platelets on the properties of the composite.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79852599","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}
引用次数: 0
Applying Thermo-Reactive Diffusion Method to Surface Coating of H13 Tool Steel Using Ferrovanadium, Ferrochromium, and Misch Metal 热反应扩散法在钒铁、铬铁和杂金属H13工具钢表面涂层中的应用
Journal of Materials Science Research Pub Date : 2023-01-30 DOI: 10.5539/jmsr.v11n2p23
Nastran Najafian, A. Moloodi, E. Karimi
{"title":"Applying Thermo-Reactive Diffusion Method to Surface Coating of H13 Tool Steel Using Ferrovanadium, Ferrochromium, and Misch Metal","authors":"Nastran Najafian, A. Moloodi, E. Karimi","doi":"10.5539/jmsr.v11n2p23","DOIUrl":"https://doi.org/10.5539/jmsr.v11n2p23","url":null,"abstract":"The thermo-reactive diffusion (TRD) process is a method for surface hardening that improves the hardness, corrosion resistance, and wear resistance of the materials. In this study, the effect of composition was investigated, by using 8, 12, 16, 20, and 24 wt% of ferrochrome and ferrovanadium with equal amounts, along with 3 wt% aluminum and borax. The TRD process was carried out at 1000°C for 7 hours on AISI H13 hot work tool steel so that a complex coating of chromium-vanadium carbide was formed on the H13 substrate. Optical and scanning electron microscopes were used to evaluate the thickness and microstructure of the samples, respectively. Moreover, the amount of alloying elements and constituent phases on the surface were analyzed by point analysis and X-ray diffraction. The micro-hardness method was used to evaluate the hardness of the samples. The results of this study showed that by increasing the amount of ferroalloy, the hardness and thickness of the coating increase. The optimal composition with 8% ferrochrome and 8% ferrovanadium was found to yield a coating with a thickness of 7.65 μm and a hardness of 2115 HV.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74496583","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}
引用次数: 0
The Effect of Laser Irradiation on The Properties of Micro to Nanolayer Titanium Alloy 激光辐照对微纳米层钛合金性能的影响
Journal of Materials Science Research Pub Date : 2023-01-30 DOI: 10.5539/jmsr.v11n2p11
H. Hebatalrahman
{"title":"The Effect of Laser Irradiation on The Properties of Micro to Nanolayer Titanium Alloy","authors":"H. Hebatalrahman","doi":"10.5539/jmsr.v11n2p11","DOIUrl":"https://doi.org/10.5539/jmsr.v11n2p11","url":null,"abstract":"In this work, a new technique for Laser irradiation of Ti6Al4VELI was developed, this alloy is an alpha-beta structure, the irradiation was done at room temperature in the normal atmosphere without any external media, the effects of laser irradiation on the Ti6Al4VELI such as the chemical composition of the alloy before and after laser irradiation were recorded by Energy dispersive X-ray “EDX” technique. the affected zone (thickness) of the laser irradiation technique was limited to the surface in micro to the nanoscale. The variation in mechanical properties due to laser irradiation at different wavelengths was measured by the determination of the variation of modulus and hardness at maximum load with a number of pulses. The wear rate was measured for the Ti6Al4VELI before and after laser irradiation at 5000 pulses where the maximum improvement in the hardness occurs at all wavelengths, in the current study, it improves surface mechanical characteristics. The effect of laser irradiation on the structures was studied by SEM, the quantitative analysis was done at all irradiation conditions. Laser treatment is suitable for both field works and industry. The improvement in mechanical properties occurs due to microstructure changes without significant changes in chemical composition. the efficiency and lifetime of the alloys were increased, the work is registered as patent number 24014 in the Egyptian patent office.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87876264","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}
引用次数: 0
Dynamic Fracture Toughness Behaviour of CFRP-Foam-CFRP Sandwich Composite and Particles Filled Hybrid Glass Fiber Cloth, Graphene Nanoplates Coated Glass Fiber Strand Composite Materials under Low Impact Velocity 低冲击速度下cfrp -泡沫- cfrp夹层复合材料及颗粒填充杂化玻璃纤维布、石墨烯纳米片涂覆玻璃纤维股复合材料的动态断裂韧性行为
Journal of Materials Science Research Pub Date : 2022-05-23 DOI: 10.5539/jmsr.v11n1p70
V. Srivastava
{"title":"Dynamic Fracture Toughness Behaviour of CFRP-Foam-CFRP Sandwich Composite and Particles Filled Hybrid Glass Fiber Cloth, Graphene Nanoplates Coated Glass Fiber Strand Composite Materials under Low Impact Velocity","authors":"V. Srivastava","doi":"10.5539/jmsr.v11n1p70","DOIUrl":"https://doi.org/10.5539/jmsr.v11n1p70","url":null,"abstract":"The main objective of the present study is to investigate the dynamic fracture toughness behaviors of CFRP-Foam-CFRP sandwich composite of V-notched through -thickness, surface, and un-notched specimens under Izod, and Charpy impact tests.  The sandwich composite structures are made of cross-plied carbon fiber reinforced plastic (CFRP) composite faces with polyurethane foam core. CFRP composites are used to combine the upper face and the lower face through the core in stitched sandwich structures. Compressive strength of weight drop impact perforated and un-perforated sandwich composite specimens are measured from a universal testing machine. Also, particles (Al2O3, CNTs, and cement) filled glass fiber cloth and graphene nanoplates coated glass fiber strands reinforced polymer hybrid composite are fabricated for V-notched, un-notched Izod impact and Charpy impact tests. The results show that weight drop impact energy is lower than the Izod impact energy but higher than the Charpy impact energy, whereas the dynamic fracture toughness of Izod impact energy is more than the Charpy and weight drop impact energy due to geometry of impactor and sandwich specimen. However energy and dynamic fracture toughness of Al2O3, CNTs, and Cement filled un-notched hybrid composites higher than the notched hybrid composites under Izod Impact. The dynamic fracture toughness and energy of CNTs filled hybrid composites is higher than the sandwich composites, Al2O3, and Cement filled hybrid composites under Charpy Impact.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80342837","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}
引用次数: 0
New Interferometric Method and Device for Measuring the X-Ray Train Length 新型干涉测量x射线列阵长度的方法及装置
Journal of Materials Science Research Pub Date : 2022-05-23 DOI: 10.5539/jmsr.v11n1p85
H. R. Drmeyan, S. Mkhitaryan
{"title":"New Interferometric Method and Device for Measuring the X-Ray Train Length","authors":"H. R. Drmeyan, S. Mkhitaryan","doi":"10.5539/jmsr.v11n1p85","DOIUrl":"https://doi.org/10.5539/jmsr.v11n1p85","url":null,"abstract":"A new interferometric method for measuring the length of the X-ray train is proposed, and a special interferometer, a device for measurement of the X-ray train length has been developed, created, and tested. The length of the X-ray train and the duration of coherent radiation are estimated and it has been proven that the interference pattern disappears when the difference of paths between the superimposing waves becomes greater than the length of the coherent X-ray train. The bound of a disappearance of the X-ray interference pattern is determined depending on the magnitude of the path differences. The length of the X-ray train is determined, which is close to the theoretically determined value.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76501543","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}
引用次数: 1
Reviewer acknowledgements for Journal of Materials Science Research, Vol. 11, No. 1 《Journal of Materials Science Research》第11卷第1期审稿人致谢
Journal of Materials Science Research Pub Date : 2022-05-23 DOI: 10.5539/jmsr.v11n1p91
John Martin
{"title":"Reviewer acknowledgements for Journal of Materials Science Research, Vol. 11, No. 1","authors":"John Martin","doi":"10.5539/jmsr.v11n1p91","DOIUrl":"https://doi.org/10.5539/jmsr.v11n1p91","url":null,"abstract":"Reviewer acknowledgements for Journal of Materials Science Research, Vol. 11, No. 1, 2022.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75119178","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}
引用次数: 0
Characterization of PZ27 and PZ52 Piezoceramics from Electrical Measurements PZ27和PZ52压电陶瓷的电测量表征
Journal of Materials Science Research Pub Date : 2021-12-08 DOI: 10.5539/jmsr.v10n2p84
O. Diallo, Harouna Mamadou BAL, M. Ndiaye, S. Gaye, G. Feuillard
{"title":"Characterization of PZ27 and PZ52 Piezoceramics from Electrical Measurements","authors":"O. Diallo, Harouna Mamadou BAL, M. Ndiaye, S. Gaye, G. Feuillard","doi":"10.5539/jmsr.v10n2p84","DOIUrl":"https://doi.org/10.5539/jmsr.v10n2p84","url":null,"abstract":"The characterization of ceramics is essential for the optimization of ultrasonic transducers. To do this we must determine the functional properties of ceramics which are: \u0000 \u0000 \u0000 speed of vibration of longitudinal waves \u0000 kt = Coupling coefficient: indicates the ability of the ceramic to transform electrical energy into mechanical energy \u0000 the dielectric constant \u0000 electrical and mechanical losses \u0000 acoustic impedance \u0000 \u0000 \u0000The electrical measurements allowed us to determine the functional properties of the ceramics available to us. We were able to refine the results thus obtained thanks to the digital simulator (KLM).","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89229461","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}
引用次数: 0
Root Cause of Degradation in the Creep Strength of Martensitic Steel 马氏体钢蠕变强度下降的根本原因
Journal of Materials Science Research Pub Date : 2021-11-23 DOI: 10.5539/jmsr.v11n1p1
M. Tamura
{"title":"Root Cause of Degradation in the Creep Strength of Martensitic Steel","authors":"M. Tamura","doi":"10.5539/jmsr.v11n1p1","DOIUrl":"https://doi.org/10.5539/jmsr.v11n1p1","url":null,"abstract":"Creep curves of Grade 91 and 92 steels were analyzed by applying an exponential law to the temperature, stress, and time parameters to investigate the formation process of the Z-phase, which lowers the long-term rupture strength of high-Cr martensitic steel. The activation energy (Q), activation volume (V), and Larson–Miller constant (C) were obtained as functions of creep strain. At the beginning of creep, sub-grain boundary strengthening occurs because of dislocations that are swept out of the sub-grains, and this is followed by strengthening owing to the rearrangement of M23C6 and the precipitation of the Laves phase. Heterogeneous recovery and subsequent heterogeneous deformation start at an early stage of transient creep near several of the weakest boundaries because of the coarsening of the precipitates; this results in the simultaneous decreases in Q, V, and C even in transient creep. Further, this activity triggers an unexpected degradation in strength because of the accelerated formation of the Z-phase even in transient creep. The stabilization of M23C6 and the Laves phase is important to mitigate the degradation of the long-term rupture strength of high-strength martensitic steel. The stabilization of the Laves phase is especially important for Cr-Mo systems because Fe2Mo is easily coarsened at approximately 600 °C compared to Fe2W in Grade 92 steel.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80101835","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}
引用次数: 1
Analysis of the Degradation in the Creep Strength of High-Cr Martensitic Steels 高铬马氏体钢蠕变强度退化的分析
Journal of Materials Science Research Pub Date : 2021-10-19 DOI: 10.5539/jmsr.v10n2p1
M. Tamura, F. Abe
{"title":"Analysis of the Degradation in the Creep Strength of High-Cr Martensitic Steels","authors":"M. Tamura, F. Abe","doi":"10.5539/jmsr.v10n2p1","DOIUrl":"https://doi.org/10.5539/jmsr.v10n2p1","url":null,"abstract":"To investigate the formation process of the Z-phase, which lowers the long-term rupture strength of high-Cr martensitic steel, the creep curves of Grades T91, T92, and P92 were analyzed along with the experimental steels of 9Cr-1W and 9Cr-4W by applying an exponential law to the temperature, stress, and time parameters. The activation energy (Q ), activation volume (V ), and Larson-Miller constant (C ) were obtained as functions of creep strain. At the beginning of creep, sub-grain boundary strengthening occurs due to dislocations that are swept out of the sub-grains, which is followed by strengthening due to the rearrangement of M23C6 and the precipitation of the Laves phase. After Q  reaches a peak, heterogeneous recovery and subsequent heterogeneous deformation begin at an early stage of transient creep in the vicinity of several of the weakest boundaries due to coarsening of the precipitates. This activity triggers an unexpected degradation in strength due to the accelerated formation of the Z-phase. Stabilization of M23C6 and the Laves phase is important for mitigating the degradation of the long-term rupture strength of high-strength martensitic steel. The stabilization of the Laves phase is especially important for the Cr-Mo systems because Fe2Mo is easily coarsened at ~600 °C as compared to Fe2W. Lowering the hardness and Si content also prevents excess hardening due to the Laves phase, which also mitigates the degradation. The online monitoring of creep curves and the QVC  analysis render it possible to detect signs of long-term degradation under targeted conditions within a relatively short period.","PeriodicalId":16111,"journal":{"name":"Journal of Materials Science Research","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76678510","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}
引用次数: 4
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