Materiali in tehnologije最新文献_第4页

EXPLORING THE MECHANICAL PROPERTIES OF LEAF SPRINGS REINFORCED WITH FIBRE COMPOSITES 探索纤维复合材料增强板簧的机械性能

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.932

Sakthivel P., Santhosh S., Sivaraman P.

{"title":"EXPLORING THE MECHANICAL PROPERTIES OF LEAF SPRINGS REINFORCED WITH FIBRE COMPOSITES","authors":"Sakthivel P., Santhosh S., Sivaraman P.","doi":"10.17222/mit.2023.932","DOIUrl":"https://doi.org/10.17222/mit.2023.932","url":null,"abstract":"To determine whether eggshell particles can be used as a filler material to improve mechanical properties, this study examines the mechanical characteristics of a hybrid material made of eggshell particles and glass-fiber-reinforced polymer (GFRP). To obtain the appropriate particle size, the eggshells are cleaned, crushed, and sieved as part of the experimental approach. The eggshell fragments are then mixed with resin and glass fibres using a vacuum-assisted resin-transfer moulding process to create GFRP composites. The produced GFRP composites’ flexural strength, stiffness, fatigue stability, and other pertinent characteristics are evaluated with practical tests. Notably, certain qualities are enhanced with the inclusion of eggshell particles containing 110 % of the weight of fibroin. In comparison to conventional GFRP composites, which only consider fatigue life during the exhaustion testing phase, the results reveal a 15% increase in the enhancement rate. The findings imply that adding eggshell particles to GFRP composites has tremendous opportunities for progress, notably in automotive applications, and more specifically in the use of leaf springs. The hybrid material’s better mechanical characteristics suggest that it may be possible to improve the performance and longevity of leaf-spring applications. This study advances the investigation of low-cost, environmentally friendly materials for improving composite materials’ mechanical properties in the automobile sector. The application of eco-friendly and effective solutions in the production of automobiles may result from more study and development in this field.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139858370","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: 0

A NEW TYPE OF PLUG-IN FRICTION-STIR LAP WELDING BASED ON THE 6061-T6 ALUMINUM ALLOY 基于 6061-t6 铝合金的新型插入式摩擦搅拌搭接焊

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.839

Gaowei Cao, Jin Wang, Bo Gao, Kaicheng Mu, Hui Zhang, Baoge Li

{"title":"A NEW TYPE OF PLUG-IN FRICTION-STIR LAP WELDING BASED ON THE 6061-T6 ALUMINUM ALLOY","authors":"Gaowei Cao, Jin Wang, Bo Gao, Kaicheng Mu, Hui Zhang, Baoge Li","doi":"10.17222/mit.2023.839","DOIUrl":"https://doi.org/10.17222/mit.2023.839","url":null,"abstract":"In this study a new type of plug-in friction-stir lap welding (PFSLW) is proposed to prepare welded joints based on 4-mm-thick 6061-T6 aluminum alloy sheet. The differences in the cross-sectional morphology, microstructure, cross-sectional hardness and shear properties between the PFSLW joint and the normal friction-stir lap-welding (FSLW) joint are discussed. The results show that the cross-sectional morphology of the PFSLW joint has undergone changes. The PFSLW joint has a mechanical interlocking structure on the advancing side that is beneficial to the connection strength of the joint. The grain structure differs at the boundary between the thermo-mechanically affected zone (TMAZ) and the heat-affected zone (HAZ), and the PFSLW joints show a more pronounced bending deformation of the grain organization near the boundary. The microhardness of PFSLW joints was increased in the TMAZ and HAZ areas, and the lowest hardness is further away from the center of the weld. The failure load of the PFSLW joint has been improved, the microcracks part of the PFSLW joint has a ridge-like structure. In addition, the actual welding width of PFSLW joints was improved.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139859588","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: 0

SOLAR TECHNOLOGY: EMPOWERING SERBIA’S RENEWABLE ENERGY FUTURE 太阳能技术：助力塞尔维亚可再生能源的未来

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.944

Luka Djordjevic, S. Prvulović, Mića Djurdjev, Borivoj Novaković, Mihalj Bakator

引用次数: 0

SYNTHESIS OF CALCIUM SILICATE MATERIALS FROM THE RESIDUAL WASTE SLUDGE OF A WATER-PURIFICATION PLANT 利用净水厂剩余废渣合成硅酸钙材料

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.876

Do Trung Kien Kieu, N. Thang, Nguyen Vu Uyen Nhi, Do Quang Minh

{"title":"SYNTHESIS OF CALCIUM SILICATE MATERIALS FROM THE RESIDUAL WASTE SLUDGE OF A WATER-PURIFICATION PLANT","authors":"Do Trung Kien Kieu, N. Thang, Nguyen Vu Uyen Nhi, Do Quang Minh","doi":"10.17222/mit.2023.876","DOIUrl":"https://doi.org/10.17222/mit.2023.876","url":null,"abstract":"Calcium silicate is produced from a mixture of silica sand powder, lime, paper pulp, and Portland cement hydrothermally steamed at 180 °C for about 16 h. This material is considered environmentally friendly and is popular in countries around the world. In this study, quartz sand was replaced with residual waste sludge from water-filtration plants to produce calcium silicate materials. Nowadays, the residual waste sludge from water-filtration plants is an environmental problem that needs to be treated. The results of determining the properties showed that a sample using 10 w/% residual waste sludge gave the best replacement. This sample had a bending strength of 10.95 MPa, a volumetric density of 1.57 g/cm3, and water absorption of 23.67 %. The results of the analysis of the mineral composition (by X-ray diffraction analysis and Fourier-transform infrared spectroscopy) and microstructure (by scanning electron microscopy) showed that all samples formed tobermorite and xonotlite minerals. The tobermorite and the xonotlite are hydro-silicate-calcium minerals characteristic of calcium silicate materials, which are the synthesis products of chemical reactions of SiO2, CaO, and H2O under hydrothermal conditions. Samples using 5–10 w/% of waste residual sludge have even higher mechanical strength than samples without. Therefore, using waste residual sludge from water-filtration plants to replace part of the sand in producing calcium silicate materials can be considered an effective method to treat environmental problems caused by waste residual sludge.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139801281","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: 0

SOLAR TECHNOLOGY: EMPOWERING SERBIA’S RENEWABLE ENERGY FUTURE 太阳能技术：助力塞尔维亚可再生能源的未来

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.944

Luka Djordjevic, S. Prvulović, Mića Djurdjev, Borivoj Novaković, Mihalj Bakator

引用次数: 0

NOVEL MAGNETIC ALGINATE/HYDROXYAPATITE COMPOSITE WITH HIGH-EFFICIENCY CADMIUM-ADSORPTION PERFORMANCE 具有高效镉吸附性能的新型磁性海藻酸盐/羟基磷灰石复合材料

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.927

Xiao Xiao, Jiabei Zhou, Dali Zhou, Liang Li, Yingjiang Wu, Xiang Zhou, Lang Du, Honggen Chen

引用次数: 0

NUMERICAL MODEL FOR OPTIMIZING THE PARAMETERS FOR LASER-BEAM WELDING OF A HIGH-TEMPERATURE MATERIAL 优化高温材料激光束焊接参数的数值模型

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.990

R. Palanivel, T. M. Krishnan, Yousef Alqurashi, M. A. Rasheed

引用次数: 0

EXPLORING THE MECHANICAL PROPERTIES OF LEAF SPRINGS REINFORCED WITH FIBRE COMPOSITES 探索纤维复合材料增强板簧的机械性能

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.932

Sakthivel P., Santhosh S., Sivaraman P.

{"title":"EXPLORING THE MECHANICAL PROPERTIES OF LEAF SPRINGS REINFORCED WITH FIBRE COMPOSITES","authors":"Sakthivel P., Santhosh S., Sivaraman P.","doi":"10.17222/mit.2023.932","DOIUrl":"https://doi.org/10.17222/mit.2023.932","url":null,"abstract":"To determine whether eggshell particles can be used as a filler material to improve mechanical properties, this study examines the mechanical characteristics of a hybrid material made of eggshell particles and glass-fiber-reinforced polymer (GFRP). To obtain the appropriate particle size, the eggshells are cleaned, crushed, and sieved as part of the experimental approach. The eggshell fragments are then mixed with resin and glass fibres using a vacuum-assisted resin-transfer moulding process to create GFRP composites. The produced GFRP composites’ flexural strength, stiffness, fatigue stability, and other pertinent characteristics are evaluated with practical tests. Notably, certain qualities are enhanced with the inclusion of eggshell particles containing 110 % of the weight of fibroin. In comparison to conventional GFRP composites, which only consider fatigue life during the exhaustion testing phase, the results reveal a 15% increase in the enhancement rate. The findings imply that adding eggshell particles to GFRP composites has tremendous opportunities for progress, notably in automotive applications, and more specifically in the use of leaf springs. The hybrid material’s better mechanical characteristics suggest that it may be possible to improve the performance and longevity of leaf-spring applications. This study advances the investigation of low-cost, environmentally friendly materials for improving composite materials’ mechanical properties in the automobile sector. The application of eco-friendly and effective solutions in the production of automobiles may result from more study and development in this field.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139798329","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: 0

EFFECT OF Sc ON THE HYDROGEN-STORAGE PERFORMANCE OF Mg2Ni: A FIRST-PRINCIPLES STUDY Sc 对 Mg2Ni 储氢性能的影响：第一原理研究

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.980

Guosong Zhu, Xiaoming Du, Fu Li

引用次数: 0

DEVELOPMENT OF THE RECYCLING PROCEDURE FOR RAPID ANTIGEN TESTS 开发快速抗原检测的再循环程序

IF 0.5 4区材料科学

Materiali in tehnologije Pub Date : 2024-02-06 DOI: 10.17222/mit.2023.1063

Rebeka Rudolf, D. Feizpour, Ž. Jelen, P. Majerič, Tilen Švarc, M. Zadravec, Timi Gomboc, Aleksandra Kocijan

{"title":"DEVELOPMENT OF THE RECYCLING PROCEDURE FOR RAPID ANTIGEN TESTS","authors":"Rebeka Rudolf, D. Feizpour, Ž. Jelen, P. Majerič, Tilen Švarc, M. Zadravec, Timi Gomboc, Aleksandra Kocijan","doi":"10.17222/mit.2023.1063","DOIUrl":"https://doi.org/10.17222/mit.2023.1063","url":null,"abstract":"The article presents the problem of rapid antigen tests when they become mass waste after use. Based on this, the hypothesis was made that rapid antigen tests can be recycled. Rapid antigen tests, which were used in the Covid-19 epidemic to quickly detect infections in the population or to confirm the presence of the Sars-Cov 2 virus in patients, were intended to limit the spread of the epidemic. To confirm the hypothesis of recycling for rapid antigen tests, the LFIA-REC ATP 150 project was prepared, which was selected for co-financing by the Norwegian Fund. \u0000Rapid antigen tests consist of a sample and conjugate pad, detectable or nitrocellulose membranes and absorbent pads and a plastic case. The function of the sample pad is to evenly absorb the sample (mucus, blood) and lead it to the conjugate pad with a steady flow. Gold nanoparticles (labels) are deposited on the conjugate pad. The key is that the gold nanoparticles are conjugated with capture molecules capable of binding to potentially present antibodies or virus in the sample. \u0000The scope of the research problem thus required the inclusion of various characterization techniques that must be applied to the individual material in the rapid antigen test to subsequently develop an efficient recycling process for the rapid antigen tests. The result of the research presented in this paper represents a newly developed algorithm of characterization techniques, which includes a recommended description of the preparation of samples of key materials from rapid antigen tests. This algorithm successfully achieved the characterization of gold nanoparticles from rapid antigen tests. Based on the developed algorithm, the final part of the project will validate the recycling process of rapid antigen tests, so that they can be recycled, i.e. gold nanoparticles or plastic used in new products. The paper presents the algorithm of characterization techniques with a description of the preparation of material samples from rapid antigen tests.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139861022","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: 0