Materials Science Forum最新文献_第5页

Properties of Engineering Materials 工程材料的特性

Materials Science Forum Pub Date : 2024-04-18 DOI: 10.4028/b-doie73

Sandip A. Kale, Muthusamy Nallusamy

引用次数: 0

Effect of Quarry Dust on the Fresh Concrete Properties of Self Compacting Concrete 采石场粉尘对自密实混凝土新拌混凝土性能的影响

Materials Science Forum Pub Date : 2024-04-18 DOI: 10.4028/p-wpzhd6

A. Anitha, C. Karthik, S.C. Sarathkumar

{"title":"Effect of Quarry Dust on the Fresh Concrete Properties of Self Compacting Concrete","authors":"A. Anitha, C. Karthik, S.C. Sarathkumar","doi":"10.4028/p-wpzhd6","DOIUrl":"https://doi.org/10.4028/p-wpzhd6","url":null,"abstract":"Self-compacting concrete (SCC) is a concrete which flows under its own weight in the congested areas without any external force. Increase in demand and decrease in availability of fine aggregates, we use an alternative material called quarry dust, it is a finer material generated from stone quarries. This paper deals with the feasibility study on the utilization of quarry dust as a partial replacement in fine aggregate. In this experimental investigation, the properties of materials are tested as per Indian standards. The filling ability, passing ability and flowability characteristics of SCC as a partial replacement of fine aggregate with quarry dust was investigated as per EFNARC guidelines. In this experimental investigation, different mixes were prepared as a partial replacement of fine aggregate with quarry dust at various percentages such as 10%, 20%, 30%, 40% and 50% to obtain the optimum replacement level. The Slump flow, U-box, L-Box, V-Funnel and J-ring tests were carried out to determine the workability of SCC. The finding shows that the workability decreases with the addition of quarry dust. It is concluded that addition of quarry dust reduces the fresh properties of the SCC.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140688715","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

Effect of Addition of Sn on High-Temperature Tensile Strength of Rare-Earth Free Mg-1Ca Alloy 添加锡对不含稀土的 Mg-1Ca 合金高温拉伸强度的影响

Materials Science Forum Pub Date : 2024-04-18 DOI: 10.4028/p-pi1yt2

H. Al Rashed, Shad Inquiad Mim, Bijoy Mallick

{"title":"Effect of Addition of Sn on High-Temperature Tensile Strength of Rare-Earth Free Mg-1Ca Alloy","authors":"H. Al Rashed, Shad Inquiad Mim, Bijoy Mallick","doi":"10.4028/p-pi1yt2","DOIUrl":"https://doi.org/10.4028/p-pi1yt2","url":null,"abstract":"Magnesium alloys have spurred a strong interest in automobile and aerospace industries owing to their high specific strength and stiffness, with magnesium being the lightest structural metal. Alloying with rare earth improves tensile properties considerably. However, the availability of rare-earth elements is a concern. Therefore, attempts are being made to prepare alloys without rare-earth elements. One Mg-1Ca alloy was prepared with different amounts of Sn to study the impact on the high-temperature strength after dynamic recrystallization by hot rolling. Optical and electron microscopy analyzed the change in the microstructure. XRD and EDS were used to identify phases and composition of different microconstituent particles and high-temperature strength was measured at 250°C, 300°C, and 350 °C under 2 x 10-4 s -1 strain rate and at 3000C, 3500C, 4000C, and 4500C temperature under 5 x 10 -4 s -1 strain rate. According to XRD investigation, the alloys essentially comprise the Ca-containing phase and Mg2Sn particles. The Mg-1Ca-1Sn alloy exhibited maximum high-temperature strength at 250°C, attributed to the maximum amounts of MgCaSn particles. It was also found that dynamic recrystallization was accelerated by particle-stimulated nucleation and maximum refinement was found at 1% Sn-containing alloys.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140689464","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

A Comprehensive Review on the Effect of Thermal Post Processing on DMLS Processed SS316L Components 热后处理对 DMLS 加工 SS316L 部件影响的综合评述

Materials Science Forum Pub Date : 2024-04-18 DOI: 10.4028/p-oqdeq5

Purushottam Balaso Pawar, Swanand G. Kulkarni

{"title":"A Comprehensive Review on the Effect of Thermal Post Processing on DMLS Processed SS316L Components","authors":"Purushottam Balaso Pawar, Swanand G. Kulkarni","doi":"10.4028/p-oqdeq5","DOIUrl":"https://doi.org/10.4028/p-oqdeq5","url":null,"abstract":"SS316L is an austenite-grade steel material offering a better strength-to-ductility ratio, higher corrosion resistance, and biocompatibility. In DMLS products, residual stresses are inevitable because of the thermal gradient involved in the process and the porosity that results from process limitations. As a result of these defects, the strength of the product is reduced and the quality of the product is compromised. The primary objective of this article is to offer an in-depth analysis of different heat treatment methods that are employed to achieve superior properties in products manufactured through DMLS processing. Thermal processing techniques include Hot Isostatic Pressing, Solution Heat Treatment, T6 heat treatment, Direct Aging Treatment, etc. Using thermal post-processing techniques, 99.99% of the porosity is eliminated, corrosion resistance is significantly increased, and mechanical properties are enhanced. This study examines the need for thermal post-processing, the methodology employed, and the property enhancements achieved by DMLS products. There are many factors affecting thermal post-processing, however, efforts have been made to review the details regarding thermal post-processing applied to SS316L material processed with direct metal laser sintering. Moreover, the specific methods for post-processing can be determined based on the product's intended application.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685885","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

Experimental Study on Concrete with Partial Replacement of RCA with Rubber Tyre 用橡胶轮胎部分替代 RCA 的混凝土试验研究

Materials Science Forum Pub Date : 2024-04-18 DOI: 10.4028/p-mvfl0l

S. Sowmya, Paulraj Velci Shridevi, Ayyanar Dhanalakshmi, M. S. Shahul Hameed

引用次数: 0

Physical Properties Study of Sodium Doped Boro-Tellurite (Na2O: TeO2-B2O3-ZnO) Glasses 掺钠硼碲玻璃（Na2O：TeO2-B2O3-ZnO）的物理性质研究

Materials Science Forum Pub Date : 2024-03-22 DOI: 10.4028/p-qiz4bj

Ahmad Marzuki, Hery Purwanto, A. D. Sutomo, H. Harjana, Ari Handono Ramelan, D. E. Fausta, R. W. Astuti, A. N. Rahmawati, F. A. Alvyanti, R. Oktafiani

引用次数: 0

Silver Nanowires (AgNWs) Post-Treatment Effect in Application of Flexible Transparent and Conductive Electrodes: A Mini Review 银纳米线 (AgNWs) 在柔性透明导电电极应用中的后处理效果：微型综述

Materials Science Forum Pub Date : 2024-03-22 DOI: 10.4028/p-e4avqd

Nasikhudin Nasikhudin, Yusril Al Fath, Istiqomah Istiqomah, Hari Rahmadani, Markus Diantoro, H. Pujiarti

{"title":"Silver Nanowires (AgNWs) Post-Treatment Effect in Application of Flexible Transparent and Conductive Electrodes: A Mini Review","authors":"Nasikhudin Nasikhudin, Yusril Al Fath, Istiqomah Istiqomah, Hari Rahmadani, Markus Diantoro, H. Pujiarti","doi":"10.4028/p-e4avqd","DOIUrl":"https://doi.org/10.4028/p-e4avqd","url":null,"abstract":"Transparent flexible electrodes (TFEs) are extremely crucial for expanding flexible and wearable electronic devices. Silver nanowires (AgNWs) have been extensively investigated as an alternative to replace Indium Tin Oxide (ITO) as a commercial TFE due to their high conductivity, transparency, and flexibility. AgNWs have replaced ITO-based electrodes as the preferred approach in flexible, transparent, and conductive electrodes (FTCE). AgNWs outperform other materials, such as Reduced Graphene Oxide (RGO), ceramic material, Carbon Nanotubes (CNT), and conductive polymers, in terms of electrical conductivity, transmittance, flexibility, and low sheet resistance. Numerous techniques, including as electrospinning, spray coating, spin coating, and doctor blades, are used to use AgNWs as flexible substrates. Seed-based growth and template-assisted synthesis are two fundamental synthesis techniques that could be used to generate AgNWs. However, poor adhesiveness, and thermal and electrical stability, begin to be bottlenecks for AgNWs as high deployment in a variety of devices. So AgNWs synthesis process began to shift to other methods, such as wet chemical and polyol. In this paper, short and clear summary of various advances including post-treatment methods such as UV radiation, microwave, sonication, quenching, and so on is conducted to be one step forward to test mechanical properties and to improve AgNWs performance.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140216978","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

Performance Optimization of Supercapbattery with Porous Modification on Silicon as Anode and Cathode Based on Al2O3/CuCrO2 基于 Al2O3/CuCrO2 的硅多孔改性正负极超级电容器的性能优化

Materials Science Forum Pub Date : 2024-03-22 DOI: 10.4028/p-fztz60

Ade Siyanti Nurul Hidayah, Markus Diantoro, Nasikhudin Nasikhudin, Siti Sendari, Nuviya Illa Muthi Aturroifah, W. Meevasana, S. Maensiri

{"title":"Performance Optimization of Supercapbattery with Porous Modification on Silicon as Anode and Cathode Based on Al2O3/CuCrO2","authors":"Ade Siyanti Nurul Hidayah, Markus Diantoro, Nasikhudin Nasikhudin, Siti Sendari, Nuviya Illa Muthi Aturroifah, W. Meevasana, S. Maensiri","doi":"10.4028/p-fztz60","DOIUrl":"https://doi.org/10.4028/p-fztz60","url":null,"abstract":"The development of the supercapbattery has become the focus of energy storage research due to their potential to increase energy and power density. This research is focused on developing a modification of silicon (Si) porous as an anode with Al2O3/CuCrO2/AC composite as a cathode of supercapacitor. These electrodes were synthesized using LA133 binder with deionized water as solvent. The supercapacitor electrode uses an aluminum foil substrate, while the Si electrode uses a cupper foil substrate. The structural and morphological characterization of the electrodes were identified through XRD, FTIR, and SEM tests, while the electrochemical performance characterization using Galvanostatic Charge-Discharge (GCD) instruments. The results of XRD data analysis of thin film electrodes of supercapacitor showed diffraction peaks which indicated the phases Al2O3/CuCrO2/AC and Si porous. The absorption functional groups of Al2O3/CuCrO2/AC and Si porous were identified through FTIR characterization. The results of SEM showed the addition of CuCrO2 and structure modification of silicon into porous caused increasing value of porosity. The electrochemical performance of the optimum point at Al2O3/CuCrO2/AC condition, showing a specific capacitance of 50.3 F/g, an energy density of 36.499 Wh/kg, and a power density of 433.6 W/kg. The combination of Al2O3/CuCrO2/AC//Si Porous 16 for supercapbattery devices shows performance with a specific capacitance of 14.4 F/g, an energy density of 6.1 Wh/kg, and a power density of 33.6 W/kg. These results indicate an increase in electrochemical performance compared with Si anodes without modification.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140220077","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

Thermal Stability of ZnO/Tm2O3 Substitution on Tellurite-Zinc-Bismuth-Sodium (TZBN) Glasses 碲锌铋钠 (TZBN) 玻璃上 ZnO/Tm2O3 替代物的热稳定性

Materials Science Forum Pub Date : 2024-03-22 DOI: 10.4028/p-6opeq6

Ahmad Marzuki, A. D. Sutomo, Hery Purwanto, R. Riyatun, D. E. Fausta, Laila Amalia Putri, R. W. Astuti

引用次数: 0

Effects of Thermal Cycling on the Mechanical Strength of TPU 3D-Printed Material 热循环对热塑性聚氨酯三维打印材料机械强度的影响

Materials Science Forum Pub Date : 2024-03-22 DOI: 10.4028/p-irurz3

M. T. Espino, B. Tuazon, J. R. Dizon

{"title":"Effects of Thermal Cycling on the Mechanical Strength of TPU 3D-Printed Material","authors":"M. T. Espino, B. Tuazon, J. R. Dizon","doi":"10.4028/p-irurz3","DOIUrl":"https://doi.org/10.4028/p-irurz3","url":null,"abstract":"Fused Deposition Modelling (FDM) is a three-dimensional (3D) printing technology known for its low-cost rapid manufacturing of parts. Nowadays, various industries such as automotive, aerospace, and maritime are using this technology to manufacture 3D-printed parts that have undergone high temperatures. The material used in this study is the Thermoplastic Polyurethane (TPU), which is the most commonly-used type of Thermoplastic Elastomer (TPE) in 3D printing. This material is a combination of substances from the qualities and characteristics of both thermoplastic and vulcanized thermoset rubber. TPU has excellent abrasion resistance, hardness, chemical, and thermal resistance properties. In addition, TPU is a great fit for making hoses, gaskets, and seals due to its oil and grease resistance properties. Due to the growing application of 3D-printed materials at elevated temperatures, this study aims to characterize the tensile strength of TPU 3D-printed materials when thermal cycled. The test results concluded that the tensile properties of TPU 3D-printed specimens were significantly influenced by the number of thermal cycles it was subjected to. The samples that underwent four thermal cycles exhibited the highest modulus of elasticity and stress at 200% strain. While samples which underwent 2, 8, and 16 thermal cycles resulted to a higher modulus of elasticity and tensile stress at 200% strain than the untreated specimen.","PeriodicalId":18262,"journal":{"name":"Materials Science Forum","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140219826","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