European Journal of Materials Science and Engineering最新文献

{"title":"Engineered polylactide (PLA) - polyamide (PA) blends for durable applications: PLA with high crystallization ability to tune up the properties of PLA/PA12 blends","authors":"M. Murariu, Thomas Arzoumanian, Y. Paint, Oltea Murariu, J. Raquez, P. Dubois","doi":"10.1080/26889277.2022.2113986","DOIUrl":"https://doi.org/10.1080/26889277.2022.2113986","url":null,"abstract":"","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76320369","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}

{"title":"A bioinformatics approach to study the role of calcium phosphate properties in bone regeneration","authors":"V. Galván-Chacón, A. Vasilevich, Huipin Yuan, N. Groen, J. de Boer, P. Habibović, S. Vermeulen","doi":"10.1080/26889277.2022.2102438","DOIUrl":"https://doi.org/10.1080/26889277.2022.2102438","url":null,"abstract":"ABSTRACT Calcium phosphates (CaPs) are extensively used as biomaterials for bone repair and regeneration and are considered an interesting synthetic alternative for natural bone grafts. However, the bone regenerative potential of many CaP bone graft substitutes requires further improvements. The bioactivity of CaPs is regulated by a variety of properties, including their chemical composition and (surface) structural properties. In this study, we performed a comprehensive characterization of six CaP ceramics that had been previously tested in several in vitro and in vivo studies, allowing us to in silico distinguish osteoinductive and non-osteoinductive CaP ceramics. The numerical parameters obtained from this characterization were further correlated with osteogenesis-associated gene expression and pathways of osteoblastic MG63 cells cultured on these six CaP ceramics. The results showed, among others, the influence of both chemical and structural parameters on cytoskeleton- and extracellular matrix-related gene expression and osteogenesis-associated pathways such as MAPK and BMP. The bioinformatics approach presented here allows exploring the transcriptional landscape induced by CaP ceramics and gaining fundamental knowledge about cell-biomaterial interactions.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":"287 1","pages":"499 - 530"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80297426","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}

{"title":"Additive manufacturing of an Fe–Cr–Co permanent magnet alloy with a novel approach of in-situ alloying","authors":"S. Arneitz, R. Buzolin, S. Rivoirard, C. Sommitsch","doi":"10.1080/26889277.2022.2098832","DOIUrl":"https://doi.org/10.1080/26889277.2022.2098832","url":null,"abstract":"Abstract Additive manufacturing has become increasingly important in the production of magnetic materials in recent years due to the great demands for miniaturization and complex-shaped magnet parts. In this study, the laser beam-powder bed fusion process (LPBF) has been used to develop an in-situ alloying process for the additive manufacturing of a permanent magnet material of the Fe–Cr–Co system. This novel method allows for the production of complex alloys with a chemical composition suited to each specific case of application, achieved by using elemental powders or simpler commercial alloy powders as base materials. The core focus of this study has been on the development and characterization of the printing process using a Fe-30.5Cr-15Co-1.5Mo alloy. The in-situ alloying process has been developed by performing melt pool tests on the two main component powders Fe and Cr and by conducting parameter studies using two different powder mixtures with different sphericity of their components. The influence of different printing parameters and post-printing treatments on the chemical homogeneity and magnetic properties has been studied for selected samples. In addition, magnetic measurements at different temperatures have been performed to investigate the temperature stability of the magnetic properties of the 3D printed material. Impact Statement As by today, the current amount of research done on the additive manufacturing of magnetic materials is rather low. Most of research is focused on rare- earth containing magnetic materials. In this work therefore, we are taking another direction in which we will show that LPBF combined with in- situ alloying is an ideal method for the production of a great variety of different rare- earth free magnetic materials. The positive results of our work can both have an influence on the the scientific community, as further research in the field on different promising rare- earth free magnetic materials is to be expected. Furthermore, a positiv economic impact may occur since the production of rare- earth free magnetic materials is dependent on different raw material sources which are both more cost- effectiv and less critical in terms of their supply chain. This effect is also accompanied by a positive environmental impact, since the mining of rare- earth metals usually comes with considerable environmental pollution.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":"14 1","pages":"475 - 497"},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89552420","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}

{"title":"Lamb waves-based technologies for structural health monitoring of composite structures for aircraft applications","authors":"Marilyne Philibert, Kui Yao, M. Gresil, Constantinos Soutis","doi":"10.1080/26889277.2022.2094839","DOIUrl":"https://doi.org/10.1080/26889277.2022.2094839","url":null,"abstract":"Abstract The most common researched area of damage in a composite material such as carbon fibre reinforced plastics (CFRP) used currently in aircraft construction is barely visible impact damage (BVID), significantly reducing mechanical properties. Early detection and qualification would improve safety and reduce the cost of repair. In this context, structural health monitoring (SHM) techniques have been developed that could monitor a structure at any time by using a network of sensors. Widely used discrete ceramic transducers can generate and sense Lamb waves travelling in the structure. Wave propagation must then be analysed for effective damage identification. An effective SHM system is desired to meet several demands, such as minimised weight penalty, non-intrusive system not interfering with the structure performance, cost-effectiveness for implementation with targeted sensitivity and area coverage, capability of monitoring non-accessible and critical hot spot regions, robustness, and reliability. This review starts with an introduction on Lamb waves fundamentals and their use in SHM, and then particularly focuses on methods using piezoelectric transducers and mode selection. Some relevant applications on different structural configurations are discussed. Finally, recent developments on piezoelectric coating and direct-write sensor technology for tailored transducers are highlighted with some thoughts for near future research work.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":"20 1","pages":"436 - 474"},"PeriodicalIF":0.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78482945","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}

{"title":"NOVEL METHOD OF BREAKING DOWN RUBBER MOLECULES USING PEPTIZER AND THE PROPERTIES OF RESULTANT NATURAL RUBBER SOLVENT-BASED ADHESIVE","authors":"Wilson Uzochukwu Eze, PhD, Mohammed Kabiru Yakubu, T. Oyegoke, Amina Hassan Bayero, Micheal Ifeanyichukwu Ugbaja, Narcillina Nkechi Adegboro, Aliyu Mustphar","doi":"10.36868/ejmse.2022.07.02.128","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.128","url":null,"abstract":"The huge cost of energy associated with the breaking down of high molecular weight rubber during adhesive production has placed a demand for alternative processing technology. In this study, the use of benzoyl peroxide as a peptizer to lower the molecular weight of natural rubber has been reported. The properties of natural rubber-based solvent adhesive produced by mechanical mastication and peptizer were also compared. Natural rubber (NR) was masticated in a two-roll mill at 80oC for 30 mins and was processed into adhesive using xylene as solvent. Similarly, adhesives were formulated by chemical break down of the heavy natural rubber molecules using benzoyl peroxide as peptizer. The peptizer loading was varied from 0.2 – 1.0 parts per hundred rubber (phr) of rubber at 100oC in a water bath while other compounding additives were kept constants for all samples under study. The adhesives produced were subjected to the following test: viscosity, lap shear test, T-peel test and drying time test. Other properties studied are weathering resistance, heat resistance and effect of moisture on the adhesives bond on different substrates. The result shows that the viscosity of the adhesives increases with increasing peptizer loading and the masticated sample has a viscosity slightly lower than that of 0.8phr and 1.0phr peptizer loading. Furthermore, T-peel test shows that 0.4 phr peptizer loading has a better average T-peel strength for the bonds while the masticated sample had the least average T-peel strength when compared with all samples. The sample with 1.0phr peptizer loading had the least decrease in shear strength while the 0.2 peptizer loading had the maximum decrease in shear strength. Finally, the FT-IR spectra shows similarities in spectra but with difference in the intensity of the peaks, indicating the ability of the benzoyl peroxide to effectively oxidize the natural rubber as compared with the mechanical masticated sample. The peak of 1080 cm-1 in the peptized sample indicates a major difference with the spectra of mechanical masticated sample. Generally, the benzoyl peroxide effectively lowered the molecular weight of the natural rubber which is evident in the viscosity, reduced process time and ease of the adhesive formulation.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44857839","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}

{"title":"SYNERGETIC EFFECT OF A DRAG REDUCER AND PIPELINE INTERNAL COATING ON CAPACITY ENHANCEMENT IN OIL AND GAS PIPELINES: A LITERATURE REVIEW","authors":"Mavis Sika Okyere, L. Damoah, E. Nyankson, D. Konadu","doi":"10.36868/ejmse.2022.07.02.075","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.075","url":null,"abstract":"This article presents a review of investigations on the effect of drag-reducing agents and internal coatings to increase gas and liquid pipeline system capacity, and the correlation between the pipe internal surface roughness, pressure drop, and the maximum flow rate of gas through the pipeline. The enhancements in pipeline hydraulics are identified and used to estimate increase in pipeline capacity and subsequent savings in operating cost over a wide range of fluid and pipeline parameters. The economic benefits are presented as payback periods using discount cash flow techniques. Moreover, the aim of this study was to review published information on drag reducers and pipeline internal coating relevant to pipeline capacity enhancement.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47494690","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}

{"title":"EFFECT OF MOLYBDENUM ADDITION ON ALUMINUM WELDING","authors":"Ahmad AL Awana, I. Csáki, A. Zaid","doi":"10.36868/ejmse.2022.07.02.106","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.106","url":null,"abstract":"Welding aluminum is very important in engineering, particularly in the aircraft and automobile industries. Its recommended properties such as thermal conductivity which is a high value, the coefficient of thermal expansion which also has a high value, hydrogen high solubility, oxide coating e.g., High strength-to-weight ratio, electrical conductivity, and all these properties have a high ratio for aluminum alloys. On the other side, aluminum has some properties that affect its mechanical behavior, for example, surface finish, tear resistance, mechanical strength, and thermal resistance. Therefore, adding rare materials with specific amounts in the casting process before the solidification is a powerful technique used to enhance these characteristics by adding these rare materials that are useful for affecting the welding properties and defects problems. Al-Ti is commercially available with Al-15% Ti. This paper investigates the effect of Molybdenum, Mo, in addition to pure aluminum which is commercially available and refined by Titanium and Boron on its weldability. The obtained results are presented and discussed.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46802602","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}

{"title":"INTEGRITY ASSESSMENT OF 3LPE COATED PIPES STORED IN OPEN ENVIRONMENT FOR SEVERAL YEARS","authors":"Hafiz Abdul Ahad Qazi","doi":"10.36868/ejmse.2022.07.02.143","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.143","url":null,"abstract":"In present study integrity assessment of 3 layer PE coated pipes is discussed. Pipes were 3LPE coated several years ago and stored in open yard with direct exposure to environmental conditions. Several inspection and testing including visual inspection, Peel adhesion test, Impact test and continuity tests as specified for 3 layer PE coating in DIN 30670 has been performed to assess the integrity of coating. Inspection and testing results performed after several years of storage were found satisfactory however loss of gloss of coating is observed moreover it is recommended to perform UV degradation test to assess degradation percentage due to UV exposure by sun.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47050626","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}

{"title":"POTENTIAL OF GEOPOLYMER COATING FOR LIGHTWEIGHT AGGREGATE VIA MILLING AND DIPPING METHOD: A REVIEW","authors":"Noor Fifinatasha Shahedan, M. Abdullah, I. H. Aziz, R. Razak, S. Junaidi, Sri Umniati, Muhamad Asyraf Yaakob, N. Rusli","doi":"10.36868/ejmse.2022.07.02.094","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.094","url":null,"abstract":"The high demand for construction materials and building products, particularly aggregates, necessitates the development of innovative as the natural aggregate resource depletes. Lightweight aggregates are one of the alternatives has meet industry demand with low apparent density, excellent thermal insulation property and fire protection. Unfortunately, lightweight aggregate has a high-water absorption rate, which results in low strength and high porosity. These conditions had a negative impact on the qualities of fresh concrete, such as strength, slump, and cracking. Surface coating is thought to be a good way to prevent water absorption by lightweight particles, which lowers the concrete's performance. To reinforce the concrete, inorganic polymer composite material and cement were commonly employed to coat lightweight particles. The article presents a review on current issues facing by lightweight aggregate, mix proportion of geopolymer coating (aluminosilicate raw materials, alkaline activator ratio) and coating method (milling and dipping). This review has highlighted performance of lightweight aggregate for concrete application can be enhanced by approaching geopolymer coating as surface coating.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49607390","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}

{"title":"A STUDY ON INTERNATIONAL COMMUNICATION STANDARDS AND PERFORMANCE STANDARDS FOR SMART WATER QUALITY SENSORS","authors":"J. Kil","doi":"10.36868/ejmse.2022.07.02.117","DOIUrl":"https://doi.org/10.36868/ejmse.2022.07.02.117","url":null,"abstract":"The world is now building an artificial intelligence (AI) water quality management system to detect water quality accidents at an early stage and predict water quality vulnerable areas in advance beyond measuring the water quality. In other words, by applying big data analysis and artificial intelligence technology to the conventional water quality measurement system that monitors water quality in real time, an artificial intelligence-based water quality measurement and water quality prediction system is built at the same time, and drones and unmanned ships are also introduced. It means implementing water quality management. Water quality accident prediction based on artificial intelligence measures water quality throughout the site of use through intelligent spatial analysis based on the integrated water quality database. On the other hand, the location of the site detected through artificial intelligence is displayed on the comprehensive monitoring screen, and special management such as on-site monitoring, replacement of consumables, and maintenance is carried out to prevent water quality accidents. In particular, the prediction accuracy of artificial intelligence is to create an algorithm for predicting future values by learning the characteristics and patterns of accumulated data. It depends on the function of the smart sensor itself. However, until now, there has been no international standard for smart sensors, so it was difficult to establish system interlocking or modularization for each manufacturer and site. Therefore, we present the most important standard communication standards for smart water quality sensors in the field and international standard performance specifications for smart sensors, and this research data is provided to all organizations engaged in water quality around the world for water quality measurement and prediction system data system for AI application.","PeriodicalId":32608,"journal":{"name":"European Journal of Materials Science and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43415045","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}