Emerging Materials Research最新文献_第6页

Effect of tribological parameters and their optimization for wear responses of TiAlN coating 摩擦学参数及其优化对TiAlN涂层磨损响应的影响

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.22.00015

Sunil Kumar, S. Maity, Lokeswar Patnaik

{"title":"Effect of tribological parameters and their optimization for wear responses of TiAlN coating","authors":"Sunil Kumar, S. Maity, Lokeswar Patnaik","doi":"10.1680/jemmr.22.00015","DOIUrl":"https://doi.org/10.1680/jemmr.22.00015","url":null,"abstract":"This study investigates the relative effect of tribological process parameters and their optimization for wear responses of TiAlN thin film deposited on heat-treated and plasma nitrided novel MDC-K hot work tool steel. The effect of tribological process parameters was studied by conducting the tribological test on TiAlN thin film against Tungsten Carbide (WC) counterbody. There were three tribological process parameters considered namely: sliding velocity, applied load, and sliding distance to conduct the tribological test and study their effect on five different wear responses, namely friction coefficient (COF), surface roughness (Ra), wear depth (WD), wear mass loss (WML), and hardness (Hv). The relative effect of the process parameters was studied using counter plots and the individual effect and contribution were analyzed using the ANOVA test. Further, t overall evaluation criteria (OEC) method was employed to select the optimal setting of tribological process parameters based on the experimental results. Finally, the surface morphology of the worn TiAlN surface against the best and worst parametric settings was evaluated using EDS-integrated SEM to investigate the underlying wear mechanisms.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41356926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Editorial: A new stage of Emerging Materials Research – challenges and opportunities 社论:新兴材料研究的新阶段——挑战与机遇

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.2023.12.1.1

H. Gu, F. Heim

引用次数: 0

Theoretical study of lead-free perovskite solar cell using ZnSe as ETL and PTAA as HTL ZnSe作ETL和PTAA作HTL的无铅钙钛矿太阳能电池的理论研究

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.22.00059

V. Srivastava, R. Chauhan, P. Lohia

引用次数: 9

High-performance lead-free-perovskite solar cell: a theoretical study 高性能无铅钙钛矿太阳能电池的理论研究

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.22.00129

Ahmad Umar, Pranjal Srivastava, Sadanand, Shambhavi Rai, P. Lohia, D. K. Dwivedi, Hassan Algadi, S. Baskoutas

{"title":"High-performance lead-free-perovskite solar cell: a theoretical study","authors":"Ahmad Umar, Pranjal Srivastava, Sadanand, Shambhavi Rai, P. Lohia, D. K. Dwivedi, Hassan Algadi, S. Baskoutas","doi":"10.1680/jemmr.22.00129","DOIUrl":"https://doi.org/10.1680/jemmr.22.00129","url":null,"abstract":"In the present work, lead-free perovskite solar cell has been structured using CH3NH3SnI3 as an absorber layer, P3HT acting as a HTL, and TiO2 as ETL material. Perovskite solar cell is the originating photovoltaic technology that shows great elevation in its performance during recent years. The fundamental n-i-p planar heterojunction structure of photovoltaic cells has been designed and simulated with solar cell capacitance simulation software (SCAPS-1D). In this study, different parameters like thickness, acceptor density, temperature, and defect density have been varied to increase the device performance. Optimum values of different parameters have been used to attain the good results of the photovoltaic device such as PCE, VOC, FF, and JSC of 27.54%, 1.0216 V, 86.56%, and 31.14 mA/cm2, respectively. The impact of acceptor density has been varied from 1x10−12 cm−3 to 1x10−20 cm−3 for the proposed device structure. Therefore, the PCE of this device structure increases by using different charge transport materials. This simulation study shows that the proposed cell structure can be used to construct the photovoltaic cell with higher efficiency.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44994826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Photoelectrochemical properties of Cu2O/PANI/Si-based photocathodes destined for CO2 conversion 用于CO2转化的Cu2O/PANI/Si基光电阴极的光电化学性能

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.22.00167

L. Talbi, I. Bozetine, S. Anas Boussaa, K. Benfadel, D. Allam, N. Rahim, Y. Ould Mohamed, M. Leitgeb, C. Torki, S. Hocine, F. Boudeffar, A. Manseri, S. Kaci

{"title":"Photoelectrochemical properties of Cu2O/PANI/Si-based photocathodes destined for CO2 conversion","authors":"L. Talbi, I. Bozetine, S. Anas Boussaa, K. Benfadel, D. Allam, N. Rahim, Y. Ould Mohamed, M. Leitgeb, C. Torki, S. Hocine, F. Boudeffar, A. Manseri, S. Kaci","doi":"10.1680/jemmr.22.00167","DOIUrl":"https://doi.org/10.1680/jemmr.22.00167","url":null,"abstract":"The present study was aimed to convert CO2 into value-added products such as methanol which not only could address the potential solution for controlling the CO2 concentration level in the atmosphere but also can offer an alternative approach for the production of renewable energy sources. In this perspective, various hybrid photoelectrocatalysts were synthesized, characterized and used as photocathodes for photoelectrocatalytic (PEC) reduction of CO2 to methanol in aqueous medium under visible light irradiation. Flat silicon (Siflat) and pyramidal textured silicon (SiPY) substrates, covered with polyaniline (PANI) with or without sensitization with copper oxide (Cu2O) particles were investigated. It was noticed that the combination of PANI and Cu2O greatly increased the PEC CO2 reduction to methanol owing to enhance the CO2 chemisorption capacity by the photocathode surface and at the same time facilitated the separation of photogenerated electron-hole (e−/h+) pairs. The PEC results demonstrated that the applied potential impacts the photocurrent stability. The sensitization with Cu2O effectively separate the photogenerated e−/h+ pairs and therefore, enhanced the PEC CO2 reduction activity of the hybrid photocatalyst. The best Faradaic efficiency (FE) for methanol formation reached 57.66 % which was recorded when Cu2O/PANI/SiPY heterostructure was used as photocathode at applied potential of −1.2V vs SCE.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43056317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Award-winning paper in 2021 2021年获奖论文

4区材料科学

Emerging Materials Research Pub Date : 2023-03-01 DOI: 10.1680/jemmr.2023.12.1.100

引用次数: 0

Structural, electrical, and thermistor behavior of BiFeO3-PbZrO3 for energy storage devices 用于储能器件的BiFeO3-PbZrO3的结构、电学和热敏电阻行为

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-01-01 DOI: 10.1680/jemmr.21.00177

P. Mallick, S. Biswal, S. K. Satpathy, B. Behera

引用次数: 2

An investigation on the corrosion in the dehumidification bubble caps in the gas refinery 天然气精炼厂除湿气泡帽腐蚀的研究

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-01-01 DOI: 10.1680/jemmr.22.00227

H. Mohammadzadeh, R. Jafari, Abolfazl Gheysvand

{"title":"An investigation on the corrosion in the dehumidification bubble caps in the gas refinery","authors":"H. Mohammadzadeh, R. Jafari, Abolfazl Gheysvand","doi":"10.1680/jemmr.22.00227","DOIUrl":"https://doi.org/10.1680/jemmr.22.00227","url":null,"abstract":"One of the severe challenges in the oil, gas, and petrochemical industry is associated with reducing the costs of corrosion damages by removing the oil fluids’ moisture, and humidity in the facilities. As an essential component of moisture absorption towers in the dehumidification section is the bubble cap, which loses its efficiency in a short time due to continuous contact with steam. In the present work, the causes of the destruction of a piece of bubble cap are investigated thoroughly employing visual and microstructural observation, chemical composition study through quantometer, X-ray spectroscopy (EDS) and XRD assessments, and also the corrosion behavior study by polarization and electrochemical impedance spectrometry (EIS) analysis. The mechanism and type of corrosion occurred to the bubble cap and its capability against the corrosion were assessed. The results showed that the corrosion products after service were Fe3O4, Fe2O3, Fe(OH)3, and FeCO3, which declined the microhardness from 121.3 to 99.3 Hv. The corrosion rate was found to be 0.03116 mm/y in the saline solution. The poor performance of the material against corrosion were attributed to the casting defects, and the ineffective microstructural phases, formed due to the deficient alloying elements. According to the results, some recommendations and solutions, as effective preventive ways, have been proposed to hinder corrosion, and lead to the higher durability and the lower replacement costs.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67477682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of polyetherimide–mixed conductor membranes for hydrogen separation from methane 聚醚酰亚胺混合导体甲烷氢分离膜的研制

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-01-01 DOI: 10.1680/jemmr.21.00131

Y. Alqaheem, Abdulwahab Alhindi

引用次数: 1

Static and dynamic mechanical analysis of e-glass polyester composite used in mass transit system 公共交通系统用e-玻璃聚酯复合材料静、动态力学分析

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-01-01 DOI: 10.1680/jemmr.22.00092

S. Ojha, H. Bisaria, S. Mohanty, K. Kanny

{"title":"Static and dynamic mechanical analysis of e-glass polyester composite used in mass transit system","authors":"S. Ojha, H. Bisaria, S. Mohanty, K. Kanny","doi":"10.1680/jemmr.22.00092","DOIUrl":"https://doi.org/10.1680/jemmr.22.00092","url":null,"abstract":"Composite materials have distinct properties such as a high strength-to-weight ratio, high corrosion resistance, a high modulus-to-weight ratio, and wear resistance. The potential, strong mechanical properties and lower cost properties of E-glass fibre motivated us for this work. Tensile, flexural, and Izod impact tests were used in the current study to conduct a static analysis of E-glass reinforced isophthalic polyester composite and E-glass reinforced general purpose (GP) or orthophthalic polyester composite. Thermal-mechanical behaviour was investigated using thermogravimetric analysis and dynamic mechanical analysis tests. Furthermore, the surface morphology of the tested composites was examined using a scanning electron microscope. When compared to E-glass reinforced GP polyester composite, E-glass/isophthalic polyester composite demonstrated superior flexural properties and thermal stability. However, the tensile and impact properties of E-glass/GP polyester composite were found to be higher than those of E-glass/isophthalic polyester composite. SEM images show fibre pull-out, matrix cracking, and fibre breakage, among other things. The loss modulus and damping values for E-glass reinforced GP polyester composite were found to be greater than those for E-glass reinforced isophthalic polyester composite. The current composite can be used in marine applications, particularly the hull: frame or body of the boat.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67477668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3