Advanced Materials Research最新文献_第8页

The Energy Potential of Glassy Volcanic Rock for Cellular Glass Production 玻璃状火山岩生产蜂窝玻璃的能量潜力

Advanced Materials Research Pub Date : 2023-02-20 DOI: 10.4028/p-k7qq41

E. Sahakyan, M. Kalantaryan

引用次数: 0

Preparation and Characterization of an Electrospun Polycaprolactone/Polyurethane Scaffold for Soft Tissue Applications 用于软组织的静电纺聚己内酯/聚氨酯支架的制备和表征

Advanced Materials Research Pub Date : 2023-02-20 DOI: 10.4028/p-ez646s

M. Najim, A. Jabur, Ahmed Majeed Al-Shammari, Emad S. Al Hassani, Waleed A. H. Al Nasir, Khansaa Raad

{"title":"Preparation and Characterization of an Electrospun Polycaprolactone/Polyurethane Scaffold for Soft Tissue Applications","authors":"M. Najim, A. Jabur, Ahmed Majeed Al-Shammari, Emad S. Al Hassani, Waleed A. H. Al Nasir, Khansaa Raad","doi":"10.4028/p-ez646s","DOIUrl":"https://doi.org/10.4028/p-ez646s","url":null,"abstract":"In this study, a synthetic scaffold was prepared from polycaprolactone (PCL) and polyurethane (PU) blend, in a ratio of [2:1] [PCL: PU], using electrospinning technique. Electrospun scaffolds from native PCL and PU were also prepared for comparison, using the same polymer concentration 15% weight/ volume w/v. The detailed microstructure and other properties, like mechanical properties, porosity, and contact angle were investigated and compared between the three prepared scaffolds. Then, the survival, adhesion, proliferation and penetration of rat embryonic fibroblast (REF) cells were evaluated on these three prepared scaffolds after being in vitro cultured with these cells for 21 days, using scanning electron microscope (SEM) analysis and histological analysis. The results showed that, all the studied properties, including mechanical properties and contact angle were enhanced by combining PU with PCL in the [PCL: PU] scaffold. The average diameter of fiber and the average size of pore were suitable and proper for cell attachment, cell proliferation, and also the big average pore size in [PCL: PU] scaffold was enough for cell penetration to form a three- dimension 3-D structure, which is the aim of this study.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"1 1","pages":"75 - 87"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81845896","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

Mechanical Properties of 202 Austenitic Stainless Steel Depending on Rolling Temperature and Rolling Degree 202奥氏体不锈钢随轧制温度和轧制度的力学性能

Advanced Materials Research Pub Date : 2023-02-20 DOI: 10.4028/p-or148u

Gum-Hwa Lee, Hyun-Bae Jeon, K. Nam

引用次数: 0

Bending and Free Vibration Analysis of Functionally Graded Sandwich Pile on Elastic Foundation Using Rayleigh-Ritz Method 用瑞利-里兹法分析弹性地基上功能梯度夹层桩的弯曲和自由振动

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-5h29l1

Nair Khiloun, N. Elmeiche, Hichem Abbad, I. Mechab

{"title":"Bending and Free Vibration Analysis of Functionally Graded Sandwich Pile on Elastic Foundation Using Rayleigh-Ritz Method","authors":"Nair Khiloun, N. Elmeiche, Hichem Abbad, I. Mechab","doi":"10.4028/p-5h29l1","DOIUrl":"https://doi.org/10.4028/p-5h29l1","url":null,"abstract":"The present study aims to carry out a parametric investigation on a pile made of different materials, and subjected to static and dynamic loading resulting from the weight of the structure and the shear force acting on the head of the pile. It is worth specifying that the pile is anchored in the ground on a Winkler-Pasternak elastic foundation that is made up of five different layers. In this study, the equilibrium equations were treated using the high-order theory with a new shear deformation shape function of a cylindrical pile made of an isotropic material and a sandwich functionally graded material.The results obtained with a numerical study based on the minimization of energies by the Rayleigh-Ritz method was carried out in order to highlight the influence of the geometric ratio, the volume fraction of the functionally graded material, and the type of loading on the vibration frequencies and the admissible stresses in order to determine the most appropriate material for the pile so that extreme stresses can be absorbed. The precision and the applicability of the method with new solution of the transverse shear deformation are demonstrated through this study with modeling of the layered property of the soil, were then compared with those reported in previous work available in the literature. It turned out that these results are in good agreement with each other, for the different materials of pile and for all boundary conditions considered. The results of pile with sandwich functionally graded material, it is revealed that the role of this material has an influence on the type of loading, especially, in the case statique of a pile subjected to a compound bending weight and the shear effect, in case dynamique the pile with vibration flexible or rigid .","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"6 1","pages":"47 - 64"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80287734","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

Effect of Bias Voltage on Adhesion and Corrosion Resistance of Titanium Nitride Coated Stainless Steel Substrate 偏压对氮化钛涂层不锈钢基体附着力和耐蚀性的影响

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-nf315p

Talha Faizi, Abdullah Khan, R. Ali

{"title":"Effect of Bias Voltage on Adhesion and Corrosion Resistance of Titanium Nitride Coated Stainless Steel Substrate","authors":"Talha Faizi, Abdullah Khan, R. Ali","doi":"10.4028/p-nf315p","DOIUrl":"https://doi.org/10.4028/p-nf315p","url":null,"abstract":"In this work, the adhesion and corrosion resistance of TiN coating by magnetron sputtering on stainless steel substrates under different bias voltages conditions (-50 V and-100 V) was investigated. AFM was used for surface roughness and grain size analysis, XRD for phase identification, Rockwell C for adhesion and nanoindentation for hardness and elastic modulus. According to AFM the coating deposited at-100V bias had decreased surface roughness, the value decreased from 2.7 nm (for-50V sample) to 1.8 nm, this was due to an etching like process which occurs when ions with higher energies start hitting the surface. The coated samples came under HF1 adhesion parameter which is the highest class of adhesion in the model on the basis of Rockwell C adhesion test. nanoindentation hardness and elastic modulus results of-50 V and-100V were found to be 224 GPa and 182 GPa, respectively and the value of hardness, 16 GPa and 22 GPa, respectively. The corrosion behavior of TiN coatings were studied in 3.5wt. % NaCl solutions using Tafel Extrapolation, Cyclic Polarization and Open Circuit Potential. It was noted on the basis of these corrosion tests that, as bias voltage is increased, it leads to the formation of more densely packed, fine grained columnar structures with less pores, which decreases the chances of corrosion. .","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"15 1","pages":"103 - 112"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88464357","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

Influence of Magnetized Water on Mechanical Properties and Durability of Recycled Aggregate Concrete 磁化水对再生骨料混凝土力学性能和耐久性的影响

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-s2t9nl

A. Youssef, M. Esfahani

{"title":"Influence of Magnetized Water on Mechanical Properties and Durability of Recycled Aggregate Concrete","authors":"A. Youssef, M. Esfahani","doi":"10.4028/p-s2t9nl","DOIUrl":"https://doi.org/10.4028/p-s2t9nl","url":null,"abstract":"The main objective of this study was to investigate the influence of using magnetized water on the mechanical properties and durability behavior in terms of freeze-thaw resistance of recycled aggregate concrete. In addition to the effect of different numbers of water rounds in the magnetic field, other variables including steel fibers, super-plasticizers and silica-fume were considered in the concrete production in order to achieve the ideal possible performance for recycled aggregate concrete made with 100% coarse aggregates replacements. For this purpose, a total of 11 concrete mixes were prepared and tested. At the first step, the effects of the mentioned variables on the basic properties, including workability, water absorption, compressive strength, splitting tensile strength, flexural strength and freeze-thaw durability test were investigated. Additionally, flexural toughness was evaluated in accordance with the post-crack strength (PCS) method and the microstructure of concrete specimens was also observed by using scanning electron microscope (SEM). The results of most experiments indicated that magnetized water, although highly effective on the mechanical properties of concrete, should not be solely utilized as a compensating factor for the defects caused by recycled coarse aggregates. The optimum toughness and durability results regarding the fiber-reinforced concrete mixes produced with recycled coarse aggregates, were related to samples containing silica-fume and 10-rounds magnetized water. Furthermore, the existence of cement replaced by 10% of silica-fume and 10-rounds magnetized water in the concrete mix MW-SF2, increased the durability of the recycled aggregate concrete by an average of approximately 63%.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"5 1","pages":"25 - 46"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79182623","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 Easy Way for Ceramic Bricks Elaboration to Carry out Basic Technical Measurements 一种简便易行的砖坯精加工基础技术测量方法

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-e218c0

Hicham Elidrissi, Wafaa Borja, L. Daoudi, N. Fagel, R. Hakkou, Y. Taha, Y. Tamraoui

{"title":"An Easy Way for Ceramic Bricks Elaboration to Carry out Basic Technical Measurements","authors":"Hicham Elidrissi, Wafaa Borja, L. Daoudi, N. Fagel, R. Hakkou, Y. Taha, Y. Tamraoui","doi":"10.4028/p-e218c0","DOIUrl":"https://doi.org/10.4028/p-e218c0","url":null,"abstract":"Fired bricks have shown tremendous potential as a construction material due to their properties. However, their use required some specifications in terms of quality, resistance, and durability. In developing countries, the lack of tools to make test specimens leads to many defects in these brick specimens responsible for low durability and weak precision during mechanical tests and shrinkage. In this study, a simple and traditional method of making test bricks is presented. This simple method allows the production of bricks with the required properties. This method is especially efficient for semi-soft consistency pastes. The elaborated handmade pastes present a very different particle-size distribution < 2 mm (clay: 18-66%; silt: 12-53%; sand: 5-65%). The pastes do not stick to the walls of the mould like in the case of steel moulds, and it gives specimens with standard shape, smooth surface, and sharp edges. The resulting fired bricks exhibit high mechanical strength (up to 102 MPa for the compressive strength, and up to 28 MPa for the flexural strength) comparable to and even better than those of conventional methods. The elaborated bricks allowed also the measurement of very important parameters such as drying and firing shrinkage, drying, and firing weight loss, and porosity.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"101 1","pages":"3 - 14"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73850112","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 Ultraviolet Light Stabilizers on Color Stability, Melt Properties and Tensile Properties of Mixed Waste Plastics Blends 紫外光稳定剂对混合废塑料共混物颜色稳定性、熔体性能和拉伸性能的影响

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-c8f808

M. Hyvärinen, Viktor Lagern, T. Kärki

{"title":"The Effect of Ultraviolet Light Stabilizers on Color Stability, Melt Properties and Tensile Properties of Mixed Waste Plastics Blends","authors":"M. Hyvärinen, Viktor Lagern, T. Kärki","doi":"10.4028/p-c8f808","DOIUrl":"https://doi.org/10.4028/p-c8f808","url":null,"abstract":"Plastic waste disposal is among the most challenging problems of the current era. Therefore, new methods and applications for the utilization of waste plastics are increasingly needed. To find them, it is essential to research and develop the material properties of recycled plastics. The effect of different ultraviolet light (UV) stabilizers on the color stability, melt properties and tensile properties of mixed waste plastics blends was studied in this paper. The mixed waste plastics collected from two different waste sources were prepared as specimens by injection molding, and studied with two different types and loading amounts of UV stabilizers. UV absorbers (UVAs) and hindered amine light stabilizers (HALS) were used as UV stabilizers. A specimen produced without the addition of a UV stabilizer was used as a reference specimen of both the blends. After the accelerated weathering, the addition of a UVA provided an improved, smaller change in color than the addition of HALS. Among the tensile properties, the addition of UV stabilizers clearly improved the tensile strength and tensile modulus for almost all the studied specimens. Additionally, the melt properties of both the studied plastic blends were found to be increased by the addition of UV stabilizers.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"19 1","pages":"91 - 102"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76487117","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

Behavior of Railway Embankment Constructed on Soft Deltaic Deposits under Varying Train Speeds 软三角洲沉积物上铁路路堤在不同列车速度下的性能

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-j7627z

Shamontee Aziz, Joyashree Mallick, Iram Lamiya Hoque, Md. Arifuzzaman Nayeem, A. Amin

{"title":"Behavior of Railway Embankment Constructed on Soft Deltaic Deposits under Varying Train Speeds","authors":"Shamontee Aziz, Joyashree Mallick, Iram Lamiya Hoque, Md. Arifuzzaman Nayeem, A. Amin","doi":"10.4028/p-j7627z","DOIUrl":"https://doi.org/10.4028/p-j7627z","url":null,"abstract":"This study employs 2D finite element modeling using Plaxis to investigate the behavior of the railway embankment constructed on the active Ganges-Bramhaputra floodplain. The parametric study considers three different train speeds, 100, 120, and 170 km/hr, and two different soil profiles along different chainages, chainage 82 km+183 m (Ch1) and 84 km+102 m (Ch2) of Padma Bridge Rail Link. Pseudo-static trainloads have been applied and the settlement of the ballast bottom (BB) and embankment bottom (EB) have been determined and compared along with the factor of safety (FS). From the obtained results, the maximum settlement of EB in Ch1 ranged between 27.45 cm to 29.2 cm which is lower by 9.2 cm from Ch2 on average. For BB, greater settlements have been observed as they varied between 33.25 cm to 36.20 cm for Ch1 and 42.80 cm to 45.31 cm for Ch2. Thus in both cases, Ch2 shows greater settlements. Also in both chainages, the settlements exceed the allowable range. As the train speed increases from 100 to 170 km/hr, the increase in the settlement is noticeable for the ballast bottom but not for the embankment bottom. Considering the FS, the embankments are assessed to be safe in all considered cases with an FS> 1.2, without any significant effect of train speeds.","PeriodicalId":7271,"journal":{"name":"Advanced Materials Research","volume":"17 1","pages":"81 - 88"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86102201","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: 2

Pressure Effects on the Structural, Elastic Properties and Mechanical Parameters of Al-Doped GaAs 压力对掺al GaAs结构、弹性和力学参数的影响

Advanced Materials Research Pub Date : 2022-09-26 DOI: 10.4028/p-26n0r9

F. Okbi, K. Almi, S. Lakel

引用次数: 0