Advances in Materials Science最新文献

The Influence of Mineral Additives and Sands on the Performance of Self-Compacting Sand Concretes 矿物添加剂和砂对自密实砂混凝土性能的影响

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0007

Belkacem Djoual, R. Kettab, A. Ghrieb, T. Bouziani, R. Zaitri

{"title":"The Influence of Mineral Additives and Sands on the Performance of Self-Compacting Sand Concretes","authors":"Belkacem Djoual, R. Kettab, A. Ghrieb, T. Bouziani, R. Zaitri","doi":"10.2478/adms-2024-0007","DOIUrl":"https://doi.org/10.2478/adms-2024-0007","url":null,"abstract":"\u0000 The chosen plan for our case study is a network mixture design consisting of 21 mixtures. The application of this method has proven to be immensely useful in studying the influence of composition parameters (composite design) and the utilization of various types of mineral additives (mixture design). The application of the Design of Experiments (DOE) method, based on a statistical approach, allowed for a better understanding of the effect of formulation parameters, including the proportion of alluvial sand (75%), dune sand (25%), the total amount of sand kept at constant percentages, the dosages of brick powder, limestone filler and ceramic powder (all varying from 0 %, 20 %, 40 %, 60 %, 80 %, and 100 %), while keeping the dosage of superplasticizer and the water/binder ratio constant. This approach helped to understand the interactions between these parameters and their impact on the process. Mathematical models relating the variations of these parameters to the workability and compressive strength of such concrete mixtures have been established. The results obtained show that the workability of SCSC (expressed by slump flow and V-funnel flow) improves with the increase in the dosage of limestone filler (FC), brick powder (PB), and ceramic powder (PC), with element having a different impact, be it alone or in a combination. Moreover, they all improved the behavior of SCSC in both the fresh and hardened states. The experiment shows that increasing the proportions of FC and PC in the mixture, whether linear, binary, or ternary, leads to a significant improvement in compressive strength. Furthermore, better strength is observed in the ternary mixture at 28 days, with a strength of 43 MPa, with the following proportions (FC 70%, PB 20%, PC 10%). Finally, the result at 180 days of 48 MPa confirms the following proportions (PC 60 %, FC 30 %, PB 10 %) The compliance of some SCSC compositions was tested according to the recommendations of the French Association of Civil Engineering.","PeriodicalId":504147,"journal":{"name":"Advances in Materials Science","volume":"393 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140281627","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 Cement Dosing Without Additions (CPA) on High-Performance and Ordinary Concrete Based Glass Powder as Fine Partial Cement Replacement - A Comparative Study 无添加水泥剂量（CPA）对基于玻璃粉的高性能混凝土和普通混凝土作为细粒水泥替代品的影响 - 对比研究

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0002

B. Aissat-Arab, R. Mehaddene

{"title":"Effect of Cement Dosing Without Additions (CPA) on High-Performance and Ordinary Concrete Based Glass Powder as Fine Partial Cement Replacement - A Comparative Study","authors":"B. Aissat-Arab, R. Mehaddene","doi":"10.2478/adms-2024-0002","DOIUrl":"https://doi.org/10.2478/adms-2024-0002","url":null,"abstract":"\u0000 The main objective of this paper research is a comparative study on the effect of the glass powder (GP) substitute from collected and recycled glass waste, as a fine partial cement replacement on the mechanical performance and durability of high performance concrete (HPC) and ordinary concrete (OC). For this two cement dosing were used of 400 kg/m3 to formulate OC and 450 kg/m3 to formulate HPC, and GP as considered binder like cement and not as fine addition, hence binder represent the sum of cement with GP (L=C+GP) with which will be made our two concretes formulation. Two ratios were used for the Water/Binder (W/B), the first W/B=0.35 for the HPC and the second W/B=0.5 for the OC, this ration is very important to fix the concentration of superplasticizer. A percentage of 10% and 20% substitution of cement CPA without additions noted CEM I 52.5 by the glass powder with fineness of 3600 cm 2/g are used. The evaluation of the compressive strength was followed from 7 to 365 days in order to study the behavior of the GP at different ages affected by the cement dosing and the ratio W/B compared to the reference concrete without GP for the two concretes HPC and OC. At 28 days the strengths of concretes with GP is affected by the replacement of a quantity of cement since the two reference concretes were superior but beyond this age an inverse behavior is noticed such that results obtained at age of 365 days seem to be advantageous in terms of savings in the quantity of cement used by interpreting the compressive strength, and the decrease in quantity of water in the mixtures offers a remarkable difference between the two concretes studied by using 20 % of GP as replacement of cement.","PeriodicalId":504147,"journal":{"name":"Advances in Materials Science","volume":"61 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140272162","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

Application of Regression Models on the Prediction of Corrosion Degradation of a Crude Oil Distillation Unit 回归模型在原油蒸馏装置腐蚀降解预测中的应用

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0005

B. Varbai, Richárd Wéber, Balázs Farkas, Péter Danyi, A. Krójer, R. Locskai, György Bohács, C.-S. Hős

引用次数: 0

Mechanical Flexibility and Electrical Reliability of ZnO-Al Thin Films on Polymer Substrates Under Different External Deformation 聚合物基底上的氧化锌-铝薄膜在不同外部形变条件下的机械柔韧性和电气可靠性

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0003

D. Mohammed

{"title":"Mechanical Flexibility and Electrical Reliability of ZnO-Al Thin Films on Polymer Substrates Under Different External Deformation","authors":"D. Mohammed","doi":"10.2478/adms-2024-0003","DOIUrl":"https://doi.org/10.2478/adms-2024-0003","url":null,"abstract":"\u0000 Aluminum-doped zinc oxide (AZO) films have emerged as promising transparent electrodes for various optoelectronic applications due to their superior transparency, electrical conductivity, and cost-effectiveness compared to indium tin oxide (ITO). Despite their widespread use, investigations into the electromechanical properties of AZO films, especially under various mechanical deformations, remain limited. This study employs RF magnetron sputtering to deposit AZO films on polyethylene naphthalate (PEN) substrates and explores their mechanical behavior through uniaxial tensile fragmentation and bending tests, coupled with in-situ optical microscopy. Changes in electrical resistance of AZO films were monitored in situ during deformation. Fatigue behavior was examined to further understand mechanical failure, and SEM was used for surface characterization. A critical strain of about 3.1 percent was detected during uniaxial tensile testing, marking the onset of cracks in AZO-coated PEN. In contrast to thicker films, thinner films demonstrated improved stretchability beyond the initiation of crack onset strain. Tension and compression bending tests revealed that the material has excellent bendability, as shown by its critical radii of 5.4 mm and 3.9 mm, respectively. The bending reliability of AZO films under compression was found to be superior than that under tension.\u0000 Bending fatigue experiments demonstrated that AZO films could withstand cyclic stress without experiencing no ticeable cracks after 100 cycles and with very minor resistance change. This study contributes to the creation of more reliable and optimized flexible optoelectronic devices by giving substantial quantitative data on the performance of AZO films when exposed to mechanical stress.","PeriodicalId":504147,"journal":{"name":"Advances in Materials Science","volume":"63 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278581","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

Structural and Optical Properties of Aluminium Nitride Thin Films Fabricated Using Pulsed Laser Deposition and DC Magnetron Sputtering on Various Substrates 在不同基底上利用脉冲激光沉积和直流磁控溅射制造氮化铝薄膜的结构和光学特性

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0001

I. Virt, P. Potera, G. Wisz, Andrzej Dziedzic, B. Cieniek, I. Lopatynskyi, M. Frugynskyi

引用次数: 0

Effect of the Number of Shells on Selected Mechanical Properties of Parts Manufactured by FDM/FFF Technology 壳体数量对利用 FDM/FFF 技术制造的零件的部分机械性能的影响

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0006

Wiktor Szot, Mateusz Rudnik

引用次数: 0

Nanocomposites of Nanocarbon Functionalized Carbon Fibers—Manufacturing to Methodological Applications 纳米碳功能化碳纤维纳米复合材料--从制造到方法应用

Advances in Materials Science Pub Date : 2024-03-01 DOI: 10.2478/adms-2024-0004

Ayesha Kausar, Ishaq Ahmad

{"title":"Nanocomposites of Nanocarbon Functionalized Carbon Fibers—Manufacturing to Methodological Applications","authors":"Ayesha Kausar, Ishaq Ahmad","doi":"10.2478/adms-2024-0004","DOIUrl":"https://doi.org/10.2478/adms-2024-0004","url":null,"abstract":"\u0000 Carbon fibers have been technically applied in high performance materials and industrial scale applications. Importantly, carbon fiber reinforced composite materials have found applications in aerospace industries. These properties of carbon fiber reinforced composites depend upon the carbon fiber features such as length, orientation, surface properties, adhesion with matrices, etc. To improve the surface properties of carbon fibers and adhesion and interactions with polymers, fiber modification has been suggested as an efficient approach. Carbon nanoparticle or nanocarbon functionalized carbon fibers have been manufactured using various facile physical and chemical approaches such as electrospraying, electrophoretic deposition, chemical vapor deposition, etc. Consequently, the modified carbon fibers have nanocarbon nanoparticles such as graphene, carbon nanotube, nanodiamond, fullerene, and other nanocarbons deposited on the fiber surface. These nanocarbon nanoparticles have fine capability to improve interfacial linking of carbon fibers with the polymer matrices. The chemical vapor deposition has been adopted for uniform deposition of nanocarbon on carbon fibers and chemical methods involving physical or chemical modification have also been frequently used. The resulting advanced epoxy/carbon fiber/nanocarbon composites revealed improved tensile and physical profiles. This review basically aims manufacturing and technical aspects of polymer/fiber/nanofiller nanocomposites toward the development of high performance structures. The resulting morphology, strength, modulus, toughness, thermal stability, and other physical features of the nanocarbon functionalized carbon fibers have been enhanced. In addition, the fabricated polymer/fiber/nanofiller nanocomposites have fine interfacial adhesion, matrix-nanofiller-filler compatibility, and other characteristics. The application areas of these nanomaterials have been found wide ranging including the strengthened engineering structures, supercapacitors, shape memory materials, and several others.","PeriodicalId":504147,"journal":{"name":"Advances in Materials Science","volume":"262 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140280464","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