2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)最新文献

{"title":"Welcome to AMSE-2022","authors":"V. Gradisnik, Lee Zhi","doi":"10.1109/amse51862.2022.10036486","DOIUrl":"https://doi.org/10.1109/amse51862.2022.10036486","url":null,"abstract":"","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121305213","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":"Photocatalytic Activity Under UV and Solar Illumination of Thin ZnO Films Grown by Atomic Layer Deposition","authors":"Daria Jardas, A. Omerzu, R. Peter, I. K. Piltaver, M. Petravić","doi":"10.1109/AMSE51862.2022.10036676","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036676","url":null,"abstract":"The photocatalytic activity of thin zinc oxide (ZnO) films grown by atomic layer deposition (ALD) and plasma-enhanced ALD (PEALD) was investigated under UV and simu-lated solar illumination. Optimal deposition temperatures were chosen for each method (200°C for ALD and 60°C for PEALD). Under UVC light, the PEALD ZnO thin film showed higher photocatalytic activity, while the activity of the ALD film was better under sun-simulating light. At UVA, the results were similar for the two types of thin films. We have shown that the photocatalytic activity depends on both optical properties and crystal structure, with neither of them having a dominant impact.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133427116","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":"Limits and Use of Polymeric Hollow Fibers as Material for Heat Transfer Surfaces","authors":"T. Kůdelová, M. Raudenský, E. Bartuli","doi":"10.1109/AMSE51862.2022.10036675","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036675","url":null,"abstract":"Usage of plastic tubes as heat transfer surface is not a completely new issue. In 2001 a nylon car radiator was tested. Similar heat exchangers using polymeric tubes with wall thickness about 1 mm are used now in chemical industry. Low overall heat transfer coefficient of the heat exchangers with plastic tubes is cause dominantly by thick heat transfer wall and low thermal conductivity. Polymeric hollow fiber heat transfer surfaces were presented for the first time in 2004 in shell and tube heat exchanger. The paper describe progress in study of these heat transfer surfaces since that time. Typical outer diameter of fibers is in the range from 0.6 to 1.3 mm and the thickness of the wall is about 10 % of the outer diameter. Reduction of the wall thickness to about 0.1 mm reduce significantly thermal resistance. Another advantage of hollow fibers is physical fact that convective heat transfer coefficient grows with diminishing the heat transfer surfaces. Hollow polymeric fibers are made by extrusion, and production technology limits the choice of suitable polymers. Nevertheless, there are number of materials that can be extruded in small dimensions with operation temperature from 80°C to 230°C. Even if the fibers have wall thickness 0.08 mm to 0.15 mm it can withstand internal pressure of 5 to 20 MPa at room temperatures and some materials pressure of 10 MPa at temperature 120°C. Three materials of heat transfer surfaces are discussed in the paper. Polypropylene can be used for long term load by temperatures to 80°C and internal pressure of 1 MPa. This material is suitable for variety of purposes including food and chemical industry. Higher temperatures are demanded for car industry where heat exchangers should work up to 130 °C. Typical materials for medium temperature range is polyamide. Thermoplastic polymer polyether ether ketone (PEEK) can be used for extrusion of hollow fibers used for application where temperatures up to 230°C are demanded. These heat exchangers were used for flue gas condensation and for heat exchangers steam / liquid.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117211095","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":"Preparation Of Carbon cloth/MnO2 Doped with Different Metal Ions for Supercapacitor Electrode","authors":"Xiaoyan Li, Na Yang, J. Yao, Jianlin Xu","doi":"10.1109/AMSE51862.2022.10036687","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036687","url":null,"abstract":"The voltage of symmetrical supercapacitors with water as the electrolyte is usually limited to about 1 V due to the decomposition of water. The voltage can be expanded to a certain extent by modifying the electrode. K+ and Li+ doped MnO2 were prepared on carbon cloth by electrochemical deposition with satisfied conductivity and electrochemical properties herein. The voltage of the mixed structure electrode is expanded to 1.3 V by using the synergistic effect of the pseudo capacitance of doped-MnO2 and electric double-layer capacitance of carbon cloth. Structural analysis of the samples was performed using scanning electron microscopy and X-ray diffraction. The specific capacitances of the K+ and Li+ doped MnO2 were 231.2 F/g and 283.4 F/g at 10 mV/s, respectively. Excellent integrated electrochemical performance of Li-MnO2/C suggest that this strategy can serve as a novel approach to synthesize materials for energy storage in the wide voltage range.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116473299","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":"3D Finite Element Simulations of Indentation Fracture Test of ZrO2-Ceramics with Taking into Account its Microstructure","authors":"G. Lasko, I. Danilenko, S. Schmauder","doi":"10.1109/AMSE51862.2022.10036674","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036674","url":null,"abstract":"The present contribution is aimed to identify the microstructure of zirconia ceramics possessing the higher fracture toughness. 3D-FE-simulations of indentation testing with taking into account damage evolution in the cut-out of a microstructure have been performed in ZrO2-ceramics by using the FEM-Software ABAQUS CAE. We have performed the simulation of failure behavior of ZrO2-ceramics, considering the crack propagation both in the interior of grains (with Element Elimination Technique) as well as in grain boundaries (with Cohesive Zone Modeling approach of two different micro-structures. The constitutive behavior of the grains has been considered to be orthotropic elastic. The performed simulations could serve as an example of the solution of specific multiscale fracture mechanical problem and its application to design of materials.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124465823","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":"Development and Testing of a Functional Model of Compaction Machine with Inverse Kinematics","authors":"L. Soos","doi":"10.1109/AMSE51862.2022.10036689","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036689","url":null,"abstract":"High-grade biofuel production is a suitable direction for the recovery of biomass and other energy wastes. One of the technologies that turns biomass into biofuels possessing the required properties is briquetting. There are three basic briquetting technologies - mechanical, hydraulic and screw pressing. Briquetting screw presses demonstrably create briquettes of the highest quality. An advantage of this type of briquetting is the fact that, unlike with other technologies, the briquette is formed in a continuous process. However, the current design of briquetting screw presses has several critical disadvantages. These disadvantages include the high wear and tear of the screw end, short service life of the axial bearing, transfer of the high torque through the small diameter of the screw shaft, the necessity to heat the rotating screw during the machine start-up, and its cooling during operation. Some of the specified shortcomings were addressed in previous papers. This concerns, for example, the material or geometrical optimisation of the screw [1], modular structure of the screw with a replaceable end piece [2], [8], elimination of excessive load on the axial bearing by back alignment of two screws [3], [4], [9]. Some of the shortcomings, such as excessive loading of the screw shaft, or its heating and cooling during rotation, cannot be eliminated in the case of standard screw press kinematics. The objective of the present paper is to describe the new briquetting screw press and verify the proposed principle on a functional model.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121951920","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":"Zinc oxide nanotetrapods for room temperature UV sensors by spray-coating","authors":"Mindaugas Ilickas, B. Abakevičienė, R. Mardosaitė, S. Račkauskas","doi":"10.1109/AMSE51862.2022.10036670","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036670","url":null,"abstract":"Although ZnO nanowires are extensively used for UV sensing, exceptional performance requires a complex multistep preparation technique as well as high measurement temperatures. In this study, we describe a UV sensor preparation technique with a high responsiveness (on/off) and short rise-decay durations at ambient temperature utilizing a one-step spray-coating technique of the ZnO tetrapod (ZnO- T) structure. As a result, UV sensors may be practically put on any substrate, and this technique is viable for commercial UV sensor preparation.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116666948","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":"Heated Rebar Efects on Corrosion Performance of Reinforced Concrete","authors":"R. Su, Lijie Chen","doi":"10.1109/AMSE51862.2022.10036688","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036688","url":null,"abstract":"Defects of steel-concrete interface (SCI), such as those caused by “top bar” effect, are believed to induce corrosion-related problems of reinforced concrete. This paper first attempts to explore the “hot bar” effect on concrete durability. The high temperature of rebar cast in summer is simulated by elevating the temperature of rebars prior to cast in laboratory conditions. Accelerated carbonation and cyclic wet-dry cycle corrosion tests were conducted to study the heated rebar effects on the corrosion rate, corrosion potential and concrete conductivity of carbonated RC specimens. Another group of specimens with different rebar casting temperatures were cast to study the heated rebar effect on the Ca/Si ratio around SCI by using scanning electron microscope (SEM). The test results are presented to illustrate the “hot bar” effects on reinforced concrete structures.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130944336","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":"Plenary Forum","authors":"","doi":"10.1109/amse51862.2022.10036669","DOIUrl":"https://doi.org/10.1109/amse51862.2022.10036669","url":null,"abstract":"","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127307248","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":"Paradigm Changes in Power Electronics Caused by Emerging Materials","authors":"S. Sladic, M. De Santis, E. Živić, Wojciech Giemacki","doi":"10.1109/AMSE51862.2022.10036673","DOIUrl":"https://doi.org/10.1109/AMSE51862.2022.10036673","url":null,"abstract":"The introduction of the wide bandgap (WBG) semiconductor materials such silicon carbide (SiC) and gallium nitride (GaN) enables the increase of voltage, current and temperature during the operation of semiconductor devices. That means that high voltage applications including ship propulsion, high-voltage DC transmission (HVDC) and renewable energy systems could be realized using transistors instead of the more traditional application of thyristors. However, transistor applications are not limited to IGBT transistors. New materials could improve the planar power MOSFET technology enabling the power converter efficiency improvement. Furthermore, this improvement could change the traditional AC power system used traditionally from the beginning of the 20th century by introducing the DC current into households and power transmission.","PeriodicalId":237318,"journal":{"name":"2022 International Congress on Advanced Materials Sciences and Engineering (AMSE)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123469557","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}