Journal of Advanced Materials in Engineering最新文献_第2页

Investigating the Corrosion Behavior of Roller Plates in Two Environments of C60 Water and Fresh Water in a Pelletizing Unit 研究造粒装置中的辊板在 C60 水和淡水两种环境下的腐蚀行为

Journal of Advanced Materials in Engineering Pub Date : 2023-06-01 DOI: 10.47176/jame.42.1.1021

引用次数: 0

Spark Plasma Sintering of Alumina- 15 wt.% Ceria Powder Prepared by Sol-Gel Method 溶胶-凝胶法制备氧化铝- 15%氧化铈粉体的放电等离子烧结研究

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.1006

{"title":"Spark Plasma Sintering of Alumina- 15 wt.% Ceria Powder Prepared by Sol-Gel Method","authors":"","doi":"10.47176/jame.41.4.1006","DOIUrl":"https://doi.org/10.47176/jame.41.4.1006","url":null,"abstract":"In the present research, alumina-ceria particles were synthesized by a sol-gel method. The produced particles were characterized by X-ray diffraction and scanning electron microscopy. Then, alumina matrix composites containing 15 wt.% of ceria were densified under 80 MPa pressure at different temperatures by spark plasma sintering process. X-ray diffraction results showed that the powder produced before heat treatment has an amorphous structure, while alumina and ceria phases are formed after calcination at 800 °C. The produced particles have an average particle size of 250 nm. The effect of sintering temperature on the density of samples, grain size, and hardness of composites was investigated. The samples were densified at about 1400 °C, reaching a density of about 97% of the theoretical density. The microstructure analysis revealed that the composite grains have grown with increasing sintering temperature. The results declared that increasing the temperature and pressure in the sintering process enhances the density of the samples. The Vickers hardness of the composites increased with increasing sintering temperature, as the composite samples sintered at 1400 °C for 20 minutes at a pressure of 80 MPa had the highest Vickers hardness of about 15.3 GPa.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135533227","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

Synthesis of Mesophase Carbon Microbeads from Soft Bitumen and Coal Tar by Liquid Phase Carbonization Method 以软沥青和煤焦油为原料液相炭化法制备中间相炭微珠

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.24501

引用次数: 0

Investigating Corrosion Behavior of Hard Coatings of Iron-base Electrodes Containing Carbide Elements 含碳化物铁基电极硬质镀层的腐蚀行为研究

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.17861

{"title":"Investigating Corrosion Behavior of Hard Coatings of Iron-base Electrodes Containing Carbide Elements","authors":"","doi":"10.47176/jame.41.4.17861","DOIUrl":"https://doi.org/10.47176/jame.41.4.17861","url":null,"abstract":"In this research, using the manual shielded metal arc welding (SMAW) process, a wear-resistant layer was created by AMA1600v, AMA1622v, and AMA1623v hard coating electrodes on the St37 carbon mild steel, and the effect of the number of welding passes on the microstructure and corrosion resistance of the coatings was evaluated. For this purpose, optical microscope, scanning electron microscope (SEM) equipped with Energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) were used. The results showed a distribution of different carbide deposits in the microstructure of the coating metals. The deposits were complexs of the carbides of chromium, molybdenum, and vanadium. The results of the XRD demostrated the presence of martensite, austenite, chromium carbide, and molybdenum carbide phases in all three coating metals. Tungsten carbide (W2C) was observed only in the AMA1623v sample. The results of the Tafel polarization test showed that the bare and the 1622v samples had the highest corrosion current density (15.23 µA/cm2 and 7.06 µA/cm2, rspectively) among the under-studied samples, and therefore had the highest corrosion rate and the lowest corrosion resistance. Also, the results of the test showed that the corrosion current density of the 1600v sample (6.29 µA/cm2) was higher than that obtained for the 1623v sample (4.80 µA/cm2), which revealed the lower corrosion resistance of the 1600v sample. In addition, according to the results of the electrochemical impedance spectroscopy (EIS) analysis, the highest charge transfer resistance and coating resistance with the values of 6.3 kOhm.cm2 and 68.5 Ohm.cm2, respectively, belonged to the 1623v sample, which was also proven by the polarization test. Moreover, the lowest charge transfer resistance and coating resistance among the coated samples with the values of 2.73 kOhm.cm2 and 42.5 Ohm.cm2, respectively, belonged to the 1622v sample.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135533225","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 SiC Nanoparticles’ content on Mechanical Properties and Wear Behavior of A380 Aluminum Alloy Nanocomposite Produced by Powder Metallurgy Method SiC纳米颗粒含量对粉末冶金法制备A380铝合金纳米复合材料力学性能和磨损行为的影响

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.1007

{"title":"The Effect of SiC Nanoparticles’ content on Mechanical Properties and Wear Behavior of A380 Aluminum Alloy Nanocomposite Produced by Powder Metallurgy Method","authors":"","doi":"10.47176/jame.41.4.1007","DOIUrl":"https://doi.org/10.47176/jame.41.4.1007","url":null,"abstract":"In this research, the effect of adding SiC nanoparticles on the hardness and wear behavior of A380 aluminum alloy was investigated. A380 aluminum powder and SiC nanoparticles with values of 0, 0.5, 1, and 2 wt.% were ground in a planetary ball mill in argon atmosphere for 10 hours. The weight ratio of ball to powder and the rotation speed was adjusted at 1:10 and 250 rpm, respectively. After the milling process, a hot press was used to produce the samples. The products were produced through a graphite mold with a diameter of 15 mm at a heating rate of 10 °C/min to a final sintering temperature of 520 °C and a holding time of 30 minutes in vacuum under pressure of 50 MPa and were placed in the hot press machine. The microstructure and hardness of the samples were examined using an optical microscope and Vickers hardness tester apparatus, respectively. The wear resistance was evaluated by pin-on-disk method. The greatest hardness of the samples was related to the aluminum alloy containing 0.5 wt.% SiC nanoparticles. AlA380-2 wt.% SiC nanocomposite represented the highest wear resistance compared to the other experimented samples.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135533226","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

Radar Evasion Control of Military Structures Using Graphene Oxide Coating RGO/NiFe2O4 and Polynomial Profile Monitoring 基于氧化石墨烯涂层RGO/NiFe2O4和多项式剖面监测的军事结构躲避雷达控制

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.1009

{"title":"Radar Evasion Control of Military Structures Using Graphene Oxide Coating RGO/NiFe2O4 and Polynomial Profile Monitoring","authors":"","doi":"10.47176/jame.41.4.1009","DOIUrl":"https://doi.org/10.47176/jame.41.4.1009","url":null,"abstract":"Tracking military structures and equipment is one of the parameters to create superiority in military battles. Camouflage has long been used to reduce the possibility of detection of military structures and equipment. Development of knowledge in the field of tracking and discovering military structures and equipment followed by the necessity of using the concealment in order to reduce vulnerability in war, has enhanced the importance of using new camouflage and radar evasion methods. The use of nanotechnology in the field of radar evasion of military facilities was developed by introducing graphene as a very strong absorber of electromagnetic waves. Graphene coating on the military installations causes the absorption of electromagnetic waves and as a result, these installations are not detected by the enemy's radar. Referring to the fact that there is a functional relationship between the diameter of the graphene oxide used and the radar evasion of the equipment, an attempt has been made in this article for the first time to find a solution to control and monitor the radar evasion quality using graphene oxide (with the scientific name of RGO/NiFe2O4) in the microwave spectrum of 7GHZ by the profile approach and presentation of a regression relationship. This model can be used to monitor the quality of radar evasion products (cheaper and faster than existing methods). Finally, sensitivity analysis of the model showed that the ability to detect non-conformity in the manufactured products can be detected quickly (between 1 and 20 samples) with the change in the parameters of the regression model.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135533222","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

Optimization of the Process Parameters of Antibacterial Bioactive Glass/Polycaprolactone Composite Scaffold Printed by 3D Method 抗菌生物活性玻璃/聚己内酯复合支架3D打印工艺参数优化

Journal of Advanced Materials in Engineering Pub Date : 2023-03-01 DOI: 10.47176/jame.41.4.07155

{"title":"Optimization of the Process Parameters of Antibacterial Bioactive Glass/Polycaprolactone Composite Scaffold Printed by 3D Method","authors":"","doi":"10.47176/jame.41.4.07155","DOIUrl":"https://doi.org/10.47176/jame.41.4.07155","url":null,"abstract":"In this study, a 3D bioactive glass composite scaffold containing 2 mol% silver/polycaprolactone (PCL) was synthesized by a 3D printer with the advantages of reproducibility and high flexibility in shape and size. The effective parameters (printer parameters, ratio of glass-phase, polymer phase, and solvent in printer ink) were determined for printing of nanocomposite scaffold by Taguchi method. Characterization of printed scaffolds was performed using X-ray diffraction, scanning electron microscope, infrared spectroscopy, bioactivity test, atomic emission spectroscopy, toxicity test, and cell proliferation. The results related to the synthesis of silver-containing bioglass by sol-gel method and heat treated at 550°C offered nanoparticles with an average diameter of less than 15 nm and a homogeneous distribution of silver in the matrix. Ratio of polymer phase to glass powder equivalent to 0.5, concentration of polymer in solvent of 50%, retraction of 1.5, and drive gear of 1200 are obtained as the optimum conditions for scaffold printing with acceptable quality (percentage, size and distribution of holes, regular structure of layers, and repeatability). The fabricated scaffold in optimal conditions revealed significant antibacterial properties, good bioactivity, acceptable cell viability, and high ALP activity. 3D printed BG/PCL nanocomposite scaffolds with macro (up to 500 µm) and micro size of holes and porosity percentage up to 64% in the structure can be a promising candidate for bone tissue engineering.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135533224","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

Comparison of Superhydrophobicity, Anti-Corrosion, Anti-Icing, and Self-Cleaning Properties of Nickel and Cobalt Coatings Fabricated by one-Step Electrodeposition 一步电沉积镍和钴涂层的超疏水性、抗腐蚀性、抗结冰性和自清洁性能的比较

Journal of Advanced Materials in Engineering Pub Date : 2023-02-01 DOI: 10.47176/jame.41.3.24731

A. Daneshnia, K. Raeissi, Parinaz Salehikahrizsangi

{"title":"Comparison of Superhydrophobicity, Anti-Corrosion, Anti-Icing, and Self-Cleaning Properties of Nickel and Cobalt Coatings Fabricated by one-Step Electrodeposition","authors":"A. Daneshnia, K. Raeissi, Parinaz Salehikahrizsangi","doi":"10.47176/jame.41.3.24731","DOIUrl":"https://doi.org/10.47176/jame.41.3.24731","url":null,"abstract":"In this research, superhydrophobic nickel and cobalt coatings with a hierarchical micro-nano structure were deposited on copper substrate by rapid one-step electrodeposition. The microstructure, wettability, corrosion resistance, self-cleaning and anti-icing properties of the coatings were evaluated using a scanning electron microscope (SEM), contact angle measurement, electrochemical impedance spectroscopy (EIS), alumina powder as contaminants and keeping at minus 15 ° C, respectively. According to the obtained results, nickel coating with a higher contact angle of 172.3° delays the freezing of the droplet on the surface by 6 min more than the cobalt coating with a lower contact angle of 155.6°. The surface energies of both coatings were low enough to benefit from oleophobicity and for glycerol and ethylene glycol, both coatings had water contact angles higher than 120°. When the open circuit potentials were atablized in 3.5 wt.% NaCl solution, very high charge transfer resistances of 2370 and 756.3 kΩ.cm 2 were recorded for nickel and cobalt coatings, respectively. After 16 days of immersion in saline solution, the contact angles were still in the hydrophobic range (128.7° and 98.6° for nickel and cobalt coatings, respectively). For cobalt coating with more appropriate surface microstructure and despite its lower water contact angle compared to nickel coating, better self-cleaning properties were observed.","PeriodicalId":30992,"journal":{"name":"Journal of Advanced Materials in Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48281683","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

CRP and TNF-α Detection using Porous Silicon Substrate Based on Reflectometric Interference Fourier Transform Spectroscopy 基于反射干涉傅立叶变换光谱的多孔硅衬底检测CRP和TNF-α

Journal of Advanced Materials in Engineering Pub Date : 2023-02-01 DOI: 10.47176/jame.41.3.24551

引用次数: 0

The Effect of Quenching and Partitioning (Q&P) Process on the Structural and Mechanical Properties of AISI 4130 Steel 淬火和分配(Q&P)工艺对AISI 4130钢组织和力学性能的影响

Journal of Advanced Materials in Engineering Pub Date : 2023-02-01 DOI: 10.47176/jame.41.3.1003

引用次数: 0