Article
Materials Science, Multidisciplinary
Viola Pau, Yanxu Wang, Kei Ameyama, Mie Ota-Kawabata, Takahito Ohmura
Summary: This study investigated the strengthening mechanism in a bimodal grained microstructure. It was found that the higher pre-existing dislocation density in the core region led to higher nanohardness in that region. The shell region exhibited a higher barrier effect due to the grain boundary, likely caused by higher internal strain at the grain boundary. The Hall-Petch plot showed a higher k value in the shell, consistent with the higher strengthening effect of the shell grain boundary evaluated independently in the local region.
MATERIALS TRANSACTIONS
(2022)
Article
Polymer Science
Zhenzhen Quan, Yihan Wang, Yao Zu, Xiaohong Qin, Jianyong Yu
Summary: In this study, needleless electrospinning technology was utilized to prepare sub-micro fibrous membranes with bimodal distribution, achieving excellent mechanical properties through optimization of solution concentration, voltage, and rotation speed. The novel multi-hole curved surface rotary spinneret showed promising potential for high-output fabrication of sub-micro fibers with bimodal distribution.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Polymer Science
Vyacheslav V. Rodaev, Alexander I. Tyurin, Svetlana S. Razlivalova, Viktor V. Korenkov, Yuri I. Golovin
Summary: The hardness and Young's modulus of zirconia nanofiber mats are sensitive to the microstructure, phase composition, and average diameter, with an increase in hardness corresponding to a rise in Young's modulus.
Article
Mechanics
Hana Zemcik, Tomas Kroupa, Tereza Vankova, Robert Zemcik, Josef Pihera, Pavel Prosr, Petr Kadlec, Lenka Sroubova, Eva Muellerova, Petr Martinek, Richard Pavlica, Josef Komarek, Jan Friedl, Radek Polansky
Summary: This paper describes the development of an electrically insulating hybrid steel-composite cross-arm for medium-voltage overhead distribution power lines, aiming to achieve substantial weight savings compared to a common steel cross-arm with ceramic insulators. The structure combines pultruded horizontal profiles and a braided vertical conical tube, connected by a steel locking component. The hybrid cross-arm provides electrical insulation due to the properties of glass fiber reinforced composite materials.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Chemical
T. Raja, V Mohanavel, M. Ravichandran, S. Suresh Kumar, Munirah D. Albaqami, Reham Ghazi Alotabi, Mohanraj Murugesan
Summary: Natural fibers are being explored as a potential alternative to synthetic fibers in composite materials, with varied weight ratios affecting the dynamic mechanical properties of the hybrid composite. SEM tests were used to identify failure modes in the hybrid composite, revealing significant differences in storage modulus, loss modulus, and damping factor between different samples.
ADVANCES IN POLYMER TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Arul Jeya Kumar Arputham, Aditya Soundarapandian, Rahul Kumar
Summary: This research focuses on analyzing the physical, mechanical, and dynamic-mechanical properties of high-performance polymer composites made by hot pressing basalt and aramid fibers with UHMWPE. Among the four different weight fractions of composites, UBA 4 exhibited the highest tensile strength, impact strength, hardness, and storage modulus, while UBA 1 showed the highest flexural strength. The dynamic mechanical properties of UBA 4 were found to be superior for structural applications compared to the other samples.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Engineering, Marine
Li Wang, Weiguo Ma, Lin Deng, Shaohu Liu, Ting Yang
Summary: Compared to conventional fibre-reinforced composite pipes, fibre-reinforced hybrid composite pipes are more complex due to the use of hybrid fibres, hybrid matrices, and multiple winding angles. This study improved upon the mechanical model of conventional pipes and established a model for fibre-reinforced hybrid composite pipes with any number of reinforced layers. Results showed that the matrices hybrid methods have a significant influence on the axial tensile properties of these pipes, and improving the material properties of the inner and outer liners can greatly enhance their performance.
Article
Materials Science, Multidisciplinary
T. Nawaz, G. V. M. Williams, M. P. Coles, A. Edgar, S. Chong
Summary: Oriented ferromagnetic Ni0.89Fe0.11 nanoparticle/polymer nanofibers were produced by electrospraying and thermal processing. After heat treatment, the fiber width decreased and a bimodal distribution of nanoparticle sizes was observed. There was a small spin-disordered shell and a high magnetization strength.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
K. Venkatachalam, Zaoli Yang, Pavel Trojovsky, Nebojsa Bacanin, Muhammet Deveci, Weiping Ding
Summary: Human activity recognition (HAR) is an emerging field that identifies human actions in different settings. This study proposes a hybrid model combining one-dimensional convolutional neural network and long short term memory (LSTM) classifier to improve the performance of HAR. The UCI-HAR dataset is used for experimental research.
INFORMATION SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Ashish Kumar, Akhileshwar Nirala, V. P. Singh, Biraj Kumar Sahoo, R. C. Singh, Rajiv Chaudhary, Ashok K. Dewangan, Gajendra Kumar Gaurav, Jiri Jaromir Klemes, Xinghui Liu
Summary: Agriculture waste-reinforced hybrid metal matrix composites (HMMCs) have emerged as a potential alternative to particle-reinforced composites, offering environmental benefits, productivity, economy, and efficiency. This study investigates the effect of reinforcements, SiC and coconut shell ash, in an aluminium matrix using the ultrasonic stir casting method. The fabricated composites show improved hardness, tensile strength, and wear resistance, as well as enhanced nanomechanical properties.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Leidy Ricaurte, Maria de Jesus Perea-Flores, Juan Vicente Mendez-Mendez, Patricio Roman Santagapita, Maria Ximena Quintanilla-Carvajal
Summary: This study evaluated the effect of HOPO concentration on various properties of NFs and found that higher HOPO concentration decreased the elastic modulus of NFs and increased their adhesive properties, making them suitable for use as edible packaging.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Biomedical
E. B. Benalcazar Jalkh, P. G. Coelho, L. Witek, E. T. P. Bergamo, A. C. O. Lopes, K. N. Monteiro, P. F. Cesar, L. A. Genova, P. N. Lisboa-Filho, J. L. B. Abreu, T. M. B. Campos, A. Canteenwala, E. A. Bonfante
Summary: The study revealed that Zirconia Toughened Alumina (ZTA) composite and high purity Alumina (Al2O3) exhibited high hydrothermal stability after aging, while the surface roughness and crystalline content of second-generation 3Y-TZP material (Zpex) significantly increased after artificial aging.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
J. Fayomi, A. P. I. Popoola, O. M. Popoola, V. S. Aigbodon
Summary: The influence of nano AlN on the microstructural evolution, mechanical and tribological performance was investigated. The research showed that the inclusion of AlN nanoparticles directly enhanced the investigated properties, with the MgAZ91D-12 wt%AlN nanocomposite achieving the best results. Scanning electron microscopy revealed the nucleation and dissolution of the dominant b-Mg17Al12 phase in the monolithic MgAZ91D after the addition of nano-AlN. The MgAZ91D-12 wt%AlN exhibited the highest microhardness, nanohardness, elastic modulus, and the lowest plasticity index.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Manufacturing
Alexandra Kemeny, Borbala Leveles, Tamas Bubonyi, Imre Norbert Orbulov
Summary: This study focuses on the production of high performance bimodal composite metal foams by infiltrating EN-AW Al99.5 and EN-AC AlSi12 alloys into two sets of Al2O3 ceramic hollow spheres with different diameters. The mechanical properties of the BCMFs were found to be dependent on the filling rate, rather than the volume ratio of the spheres. The structural investigations showed proper infiltration and higher filling ratio compared to unimodal composite metal foams.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
Aicha S. Lemine, Osama Fayyaz, Moinuddin Yusuf, R. A. Shakoor, Zubair Ahmad, Jolly Bhadra, Noora J. Al-Thani
Summary: This study focuses on enhancing the mechanical properties of aluminum by adding ceramic particles and synthesizing Al-NbC-B4C hybrid composites. The composites showed improved hardness, strength, and resistance to localized plastic deformations. The results demonstrated the effectiveness of the reinforcement strategy in enhancing the mechanical properties of aluminum.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Jelena Pajnik, Stoja Milovanovic, Dusica Stojanovic, Suzana Dimitrijevic-Brankovic, Ivona Jankovic-Castvan, Petar Uskokovic
Summary: The study impregnated absorbable surgical sutures with natural compound thymol, which exhibited strong antibacterial activity against E. coli and S. aureus. The impregnated material released loaded thymol gradually and retained significant amounts even after 10 days, showing potential application in antibacterial medical devices. The effects of the impregnation process on material properties and its application were detailed using characterization techniques SEM, FTIR, DSC, and DMA.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Materials Science, Composites
Srdjan Perisic, Azdihar Kareem Ali Alzaroug, Katarina Kalevski, Marija M. Vuksanovic, Tatjana Volkov Husovic, Ivana Radovic, Vesna Radojevic
Summary: Polymer matrix composite materials with short PET fiber reinforcements were studied for their mechanical properties in dentistry. It was found that increasing the amount of PET fibers in the composite led to enhanced hardness and absorbed energy, while reducing the modulus. Additionally, the cavitation resistance of the composites was better than that of pure acrylate.
POLYMER COMPOSITES
(2022)
Article
Computer Science, Information Systems
Ivana O. Mladenovic, Marko V. Boskovic, Marija M. Vuksanovic, Nebojsa D. Nikolic, Jelena S. Lamovec, Dana G. Vasiljevic-Radovic, Vesna J. Radojevic
Summary: The mechanical and electrical characteristics of electrolytically produced copper coatings were investigated, and it was found that the application of ultrasound improved the hardness and adhesion of the coatings.
Article
Food Science & Technology
Ana Salevic, Dusica Stojanovic, Steva Levic, Milena Pantic, Verica Dordevic, Radojica Pesic, Branko Bugarski, Vladimir Pavlovic, Petar Uskokovic, Viktor Nedovic
Summary: This study developed zein-based, edible, functional food-contact materials incorporated with sage extract using solvent casting and electrospinning techniques. The results demonstrated the compatibility between the materials' constituents, effective incorporation of the extract, and enhanced antioxidant and antibacterial activity. These edible materials show great potential as active/bioactive food-contact materials.
Article
Materials Science, Paper & Wood
Mirjana Kostic, Monireh Imani, Aleksandra Ivanovska, Vesna Radojevic, Katarina Dimic-Misic, Nemanja Barac, Dusica Stojanovic, Djordje Janackovic, Petar Uskokovic, Ernest Barcelo, Patrick Gane
Summary: Regenerating cellulose from ionic liquid offers a way to utilize cellulose waste to produce cellulose-CaCO3 composite materials with improved mechanical and thermal stability, potentially replacing oil-based plastics.
Article
Metallurgy & Metallurgical Engineering
Kaled Mohamed Ben Omran, Salem Ibrahim Shwika, Marija M. Vuksanovic, Aleksandar D. Marinkovic, Aleksandar Jovanovic, Nevena Prlainovic, Dragana Vasilski
Summary: Passive fire protection systems are designed to prevent the spread of flames, smoke, and toxic gases during a fire. The use of a new fire-retardant material, created by combining copolymers and various additives, shows promising results in terms of mechanical properties and corrosion resistance. The development of environmentally-friendly fire retardants needs to consider both environmental protection and sustainable development.
METALLURGICAL & MATERIALS ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Vera Obradovic, Marija Vuksanovic, Natasa Tomic, Milos Petrovic, Aleksandar Marinkovic, Dusica Stojanovic, Vesna Radojevic, Radmila Jancic Heinemann, Petar Uskokovic
Summary: This study presents the impact properties of a new form of hybrid thermoplastic composites. Different reinforcement agents were added to impregnated Kolon fabrics to prepare composites with silica particles. The impact properties of the composites were analyzed using controlled energy puncture impact tester, and the structure was determined using ATR-FTIR and FE-SEM. The results showed that adding 1 wt% FeAlLDH@SiO2 as reinforcement yielded the highest impact force.
Article
Engineering, Biomedical
Andjela Radisavljevic, Dusica B. Stojanovic, Milos Petrovic, Vesna Radojevic, Petar Uskokovic, Mirjana Rajilic-Stojanovic
Summary: In this study, polycaprolactone (PCL) was functionalized with yarrow extract and fabricated into nanofiber mats. The released polyphenols from the nanofibers showed good antioxidant activity and antibacterial effect against Staphylococcus aureus. The PCL/yarrow nanofiber mats also exhibited improved mechanical properties compared to neat PCL nanofibers.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2023)
Article
Polymer Science
Ivana Stajcic, Filip Veljkovic, Milos Petrovic, Suzana Velickovic, Vesna Radojevic, Branislav Vlahovic, Aleksandar Stajcic
Summary: Highly stable structures were formed by adding raw acacia honey as a bio-modifier to epoxy resin, resulting in high thermal and impact resistance. The addition of honey led to the formation of a new aldehyde carbonyl group and separate phases observed through scanning electron microscopy. The bio-modified resin with 3 wt% of honey could withstand multiple impacts and recover fully, with absorbed energy at the first impact 2.5 times higher than unmodified resin.
Article
Polymer Science
Dusica Stojanovic, Aleksandra Ivanovska, Nemanja Barac, Katarina Dimic-Misic, Mirjana Kostic, Vesna Radojevic, Djordje Janackovic, Petar Uskokovic, Ernest Barcelo, Patrick Gane
Summary: Ionic liquid [BMIM][Cl] was used to prepare biodegradable mulch films with different compositions. The films were characterized using various techniques, and it was found that cellulose and polycaprolactone-containing films exhibited the highest strength and modulus of elasticity. The addition of keratin and ground calcium carbonate further enhanced the performance of the films. The findings of this study contribute to the development of sustainable agriculture.
Article
Food Science & Technology
Ana Salevic-Jelic, Steva Levic, Dusica Stojanovic, Sanja Jeremic, Dunja Miletic, Milena Pantic, Vladimir Pavlovic, Ivana Sredovic Ignjatovic, Petar Uskokovic, Viktor Nedovic
Summary: This study aimed to develop active, biodegradable materials for food packaging by incorporating sage extract (SE) within a zein-gelatin blend by electrospinning and solvent casting. The fabrication techniques, SE incorporation, and its content (5, 10% w/w) determined the materials' properties. Both electrospinning and solvent casting showed promising results, with the latter producing films with higher mechanical resistance and antimicrobial properties, while the former exhibited better antioxidant activity. All formulations also demonstrated rapid complete bio-disintegration in compost.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Materials Science, Multidisciplinary
Stevan Lj. Stupar, Marija M. Vuksanovic, Dusan Z. Mijin, Mihael M. Bucko, Vasilija J. Joksimovic, Tanja S. Barudzija, Milan N. Tanic
Summary: The research focuses on metallizing polyester, cotton, and polyamide 6.6 fabrics with a silver conductive complex to enhance their mechanical properties and enable electric conductivity. The method used does not require expensive toxic chemicals or electricity, making it economically viable. Signal attenuation was measured in different frequency ranges, and the metallized polyester fabric showed higher EMI effectiveness. Characterization techniques such as XRD, FT-IR, and SEM-EDS were used to analyze the modified fabrics.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Natasa Knezevic, Jovana Milanovic, Zlate Velickovic, Milena Milosevic, Marija M. Vuksanovic, Antonije Onjia, Aleksandar Marinkovic
Summary: Oxidized cotton linters were used to prepare TOCell adsorbents and membranes for the removal of Pb2+, methylene blue, and crystal violet. The adsorption capacities of TOCell linters and membranes were determined, and after desorption, the pollutants underwent further treatment and were used in composites. The composites exhibited excellent mechanical and fireproofing properties, and the desorbed pollutants were safely stabilized in the UPR matrix.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Materials Science, Composites
Asma Alazreg, Marija M. Vuksanovic, Adela Egelja, Ivana O. Mladenovic, Zeljko Radovanovic, Milos Petrovic, Aleksandar Marinkovic, Radmila Jancic Heinemann
Summary: In this study, a reinforced material was prepared using manganese and aluminum as components for the preparation of PMMA-based composites. It was found that the addition of 3 wt% MnAl-LDH fillers significantly improved the mechanical properties of the composite material, such as a 6.38% increase in modulus of elasticity, a 27% increase in hardness, and a 10% increase in tensile strength. However, the toughness of this composite material was lower compared to the pure PMMA matrix.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Hifa Salah Adeen Embirsh, Ivana Stajcic, Jelena Grzetic, Ivana O. Mladenovic, Boban Andelkovic, Aleksandar Marinkovic, Marija M. Vuksanovic
Summary: This paper presents a sustainable technology for environmentally friendly composite production using a biobased unsaturated polyester resin and biosilica nanoparticles obtained from rice husk. The composites produced exhibit improved mechanical properties and fire resistance. Developing sustainable composites synthesized from renewable sources is important for preserving the environment and extending their lifecycle.
