Advanced Materials Letters最新文献_第3页

Applicability of Drugs as Sustainable Corrosion Inhibitors 药物作为可持续缓蚀剂的适用性

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041732

Rajni Narang, Priya Vashishth, Himanshi Bairagi, Rashmi Sehrawat, S. Shukla, Bindu Mangla

引用次数: 1

Automotive Plasma Painting Process 汽车等离子喷涂工艺

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041734

Giulia F. da Silva, Jorge Conceição Jr., Daiane T. da Silva, E. Santos

{"title":"Automotive Plasma Painting Process","authors":"Giulia F. da Silva, Jorge Conceição Jr., Daiane T. da Silva, E. Santos","doi":"10.5185/amlett.2023.041734","DOIUrl":"https://doi.org/10.5185/amlett.2023.041734","url":null,"abstract":"This study investigates the deposition of hydrogenated diamond-like carbon (DLC) films on SAE 1045 alloy samples using a plasma-enhanced chemical vapor deposition (PECVD) system and evaluates their potential as automotive coatings. Copper doping was performed via a hollow copper cathode to examine its effects on the DLC films. The primary focus was to determine the structural properties, color variations, and friction resistance of the coated samples, with the goal of establishing their applicability in the automotive industry. Raman spectroscopy confirmed the successful deposition of DLC films, while energy dispersive X-ray spectroscopy (EDS) analysis demonstrated the variation in copper atom concentrations in the samples based on the sputtering duration during the doping process. The observed color changes in the DLC films correlated with the copper atom concentrations, with the interference phenomenon and refractive index differences between DLC films and copper proposed as the primary factors influencing color variations. Scratch tests were conducted to evaluate the resistance to friction and delamination of the coated materials compared to conventionally painted steel samples. The results indicated that the DLC-coated materials exhibited higher resistance, with an estimated 15% increase in delamination resistance. The enhanced resistance was hypothesized to result from the high hardness of DLC films and the potential accumulation of nanoparticles in the valleys of the sample surface, reducing irregularities.","PeriodicalId":7281,"journal":{"name":"Advanced Materials Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89830142","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 Mangifera indica extracted CuO NPs on seed germination of Cicer arietinum and Vigna radiata: an insight on biochemical, physiological and computational studies 芒果提取物CuO NPs对西芹和紫穗草种子萌发的影响:生化、生理和计算研究

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041735

Ananya Kashyap, Madhubala Kumari, Suman Kumar, Samira Nazma, K. Mukherjee, D. Maity

{"title":"Effect of Mangifera indica extracted CuO NPs on seed germination of Cicer arietinum and Vigna radiata: an insight on biochemical, physiological and computational studies","authors":"Ananya Kashyap, Madhubala Kumari, Suman Kumar, Samira Nazma, K. Mukherjee, D. Maity","doi":"10.5185/amlett.2023.041735","DOIUrl":"https://doi.org/10.5185/amlett.2023.041735","url":null,"abstract":"Biosynthesized metal oxide nanoparticles are used as nano-fertilizers for sustainable agriculture as they have proven to be promising agents in increasing the germination rates and plant growth rate. Biosynthesis of copper oxide nanoparticles (CuO-NPs) was done for the first-time using extract of Mangifera indica leaves. Effects of assynthesized CuO NPs on the seed germination of two legume seeds are investigated at different concentrations (0 2.5 mg/ml). UV-Vis and EDX analysis confirm the formation of CuO NPs & FESEM images revealed spherical shape of NPs with particle size ranging from 105nm to 155nm. CuO-NPs also revealed to be highly stable in aqueous suspension with zeta potential value -21.1mV. Germination rate, root /shoot growth and protein estimated of Cicer arietinum and Vigna radiata seeds found to be highest at 2.5mg/ml and 1mg/ml concentration, respectively. Negative impact on germination rate and root/shoot growth was observed due to toxic effects when CuO-NPs were applied at higher concentration 2.5mg/ml to Vigna radiata seeds. Thus, it is concluded that optimum concentration of biosynthesized CuO-NPs can be used to enhance the growth of leguminous seeds because of their possible interaction with the proteins and their up-regulation as confirmed by bioinformatics studies and molecular docking of protein.","PeriodicalId":7281,"journal":{"name":"Advanced Materials Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88442929","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

Phenoxy-imine based Mononuclear Zn(II) Compounds: Applications as Polymerization Catalysts 基于苯氧亚胺的单核Zn(II)化合物:作为聚合催化剂的应用

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041733

D. Chakraborty, S. Singha Roy, Saumendra N. Sarkar

{"title":"Phenoxy-imine based Mononuclear Zn(II) Compounds: Applications as Polymerization Catalysts","authors":"D. Chakraborty, S. Singha Roy, Saumendra N. Sarkar","doi":"10.5185/amlett.2023.041733","DOIUrl":"https://doi.org/10.5185/amlett.2023.041733","url":null,"abstract":"The production of aliphatic polyesters (via ROP of cyclic esters) and aliphatic polycarbonates (via ROCOP of CO2/epoxide) is an important synthetic pathway for the production of biodegradable and biocompatible polymers. The study focuses on the catalytic activity and selectivity of phenoxy-imine based zinc compounds for the ROP of cyclic esters (rac-LA and -CL) and ROCOP of carbon dioxide and CHO/PO. The monoligated and bisligated zinc compounds have the same coordination number (four) but differed from each other in the binding mode of the ligand to the metal center (tridentate for monoligated and bidentate for bisligated compounds) and thus the compounds adopt different symmetry. For the ROP of rac-LA, the monoligated zinc compounds gave isotactic-enriched PLA while the bisligated zinc compounds gave heterotactic-enriched PLA. For the ROCOP of epoxide/CO2, isotactic-enriched polycarbonates were obtained with a notable difference in catalytic activity with the variation of the number of ligands attached to the zinc center. In addition, a correlation is established between the percentage of carbonate linkage in the polycarbonate chain and the substituent attached to the phenolate core.","PeriodicalId":7281,"journal":{"name":"Advanced Materials Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73503994","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

Emergence of R&D World Links for Decentralized Facilities and International Cooperation 分散设施和国际合作的研发世界联系的出现

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041731

Ashutosh Tiwari

{"title":"Emergence of R&D World Links for Decentralized Facilities and International Cooperation","authors":"Ashutosh Tiwari","doi":"10.5185/amlett.2023.041731","DOIUrl":"https://doi.org/10.5185/amlett.2023.041731","url":null,"abstract":"The United Nations Sustainable Development Goals (UNSDGs) and the European Green Deal (EGD) are two examples of global sustainability initiatives that trust strongly on research and development (R&D) activities to achieve their targets. This article explores the synergies between R&D world links and decentralised labs, highlighting their capacity to foster sustainable innovations through international collaborations and the exchange of ideas. Climate efficient materials research is key element of sustainable ambition and distributed facilities offer a better chance of leading circular technology for green world. The participation from developed and developing countries in clean R&D are needed to be promoted through multi folds cooperation. The worldwide industrial R&D utilizes cluster research collaboration which should be focused on net-zero innovation for raising product technology readiness levels (TRLs). In addition, advancements in the green know-hows are helpful in deciding the direction of technology development and transition for climate neutral infrastructures. Institute of Advanced Materials, IAAM, Gammalkilsvägen 18, Ulrika 590 53, Sweden *Corresponding author E-mail: director@iaam.se Tel.: (+46) 1313-2424","PeriodicalId":7281,"journal":{"name":"Advanced Materials Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81409721","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

Isolation & Characterization of Hydrocarbon Degrading Bacteria: A Bio-remedial Approach to Clean-up Oil Spills 烃类降解细菌的分离与表征:一种生物修复方法用于石油泄漏清理

Advanced Materials Letters Pub Date : 2023-10-01 DOI: 10.5185/amlett.2023.041736

Ayush Madan, Sanjeev Kumar, S. M. Waheed

引用次数: 0

Effects of Initial Surface Roughness and Sliding Speed Study on the Tribological Characteristics of AA6061 and CuZn37Pb2 Alloys 初始表面粗糙度和滑动速度对AA6061和CuZn37Pb2合金摩擦学特性的影响

Advanced Materials Letters Pub Date : 2023-07-01 DOI: 10.5185/amlett.2023.031727

Bougoffa M. Seyf Eddine, Sayhia Benchaa

引用次数: 0

Influence of NbC Addition in Aluminium Alloy A380 on Microstructure at Semi-Solid Processing Temperature 添加NbC对A380铝合金半固态加工温度下组织的影响

Advanced Materials Letters Pub Date : 2023-07-01 DOI: 10.5185/amlett.2023.031728

Bruno Arendarchuck, Luciano Lourençato, Hipolito Fals, Alexia Haagen

{"title":"Influence of NbC Addition in Aluminium Alloy A380 on Microstructure at Semi-Solid Processing Temperature","authors":"Bruno Arendarchuck, Luciano Lourençato, Hipolito Fals, Alexia Haagen","doi":"10.5185/amlett.2023.031728","DOIUrl":"https://doi.org/10.5185/amlett.2023.031728","url":null,"abstract":"Semi-solid processing is a promising technique used to fabricate parts, minimize manufacturing steps post preparation, and reduce casting defects. The globular structure is the key in this process, a characteristic achieved with the partial remelting of material to temperatures between solidus and liquids. In this sense, the aim of this research is to evaluate the microstructure quality of the aluminium matrix composite (AMC) reinforced with NbC, after semi-solid treatment. Micron-sized NbC powder with 0 wt. %, 5 wt. %, 10 wt. %, and 15 wt. % was employed as reinforcement, to fabricate a composite through the stir casting method. Furthermore, was used an Al-5Ti-1B alloy grain refinement. Globularization heat treatment at 562 °C, with a holding time of the 90s, was realized. An optical microscope under conventional and polarized light and a scanning electron microscope (SEM) allows the microstructure analyses. The dendritic cell size (DCS), grain size (GS), shape factor (SF), and rheo quality index (RQI) were used to analyse the morphology and microstructure. The results show a general reduction of GS and DCS parameters with a higher amount of NbC. The AMC with NbC shows more globular microstructure when compared with non-reinforced alloy.","PeriodicalId":7281,"journal":{"name":"Advanced Materials Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135568401","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

Antioxidant and Anti-inflammatory Activities of Polysaccharides from the Coat of Fermented and Unfermented Sugar Apple (Annona squamosa L.) Seed 发酵和未发酵苹果皮多糖的抗氧化和抗炎活性种子

Advanced Materials Letters Pub Date : 2023-07-01 DOI: 10.5185/amlett.2023.031729

Christianah Dare, O. Oyedapo

引用次数: 0

Laser-induced Micro-explosion: A Micro-zone Explosive Simulator for the Characterization of Explosives 激光诱导微爆炸:用于炸药表征的微区爆炸模拟器

Advanced Materials Letters Pub Date : 2023-07-01 DOI: 10.5185/amlett.2023.031726

Xianshuang Wang, Ruibin Liu

引用次数: 0