Article
Materials Science, Textiles
Huiyu Yang, Jie Xu, Lisha Zhai, Xin Liu, Bo Deng, Weilin Xu
Summary: Polypyrrole was deposited on carbon fiber felt by in-situ polymerization to prepare a composite textile electrode, showing improved electrochemical performance with the doping of organic sulfonic acid. The flexible electrode exhibited high areal capacitance, energy density, and power density, making it promising for wearable electronic devices.
FIBERS AND POLYMERS
(2021)
Article
Chemistry, Physical
Lijun Du, Rong Zhang, Jinhong Zhou, Jiashuai Li, Xianqiang Huang, Jujie Luo
Summary: In this study, a high-performance flexible self-supporting CoSe2/carbon fiber felt (CoSe2/CFF) electrode was prepared without any binder using a microwave method. The CoSe2/CFF electrode exhibited superior electrochemical performance and cycling life, making it a promising candidate for low-cost, small-sized wearable and portable energy storage devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Textiles
S. Yong, N. Hillier, S. Beeby
Summary: This study investigates the impact of different textile substrates on the performance of multilayer fabric supercapacitors. It found that the choice of textile substrate affects the gravimetric and areal capacitance of the supercapacitors when the carbon loading ratio is the same. The silk-based supercapacitor exhibited higher gravimetric capacitance, while the polyester-cotton supercapacitor showed superior areal capacitance.
JOURNAL OF INDUSTRIAL TEXTILES
(2021)
Article
Chemistry, Multidisciplinary
AlBatool A. Abaalkhail, Basheer A. Alshammari, Ghzzai N. Almutairi, Feraih S. Alenazey, Mohammed F. Alotibi, Asma M. Alenad, Abdullah G. Alharbi, Thamer S. Almoneef, Bandar M. AlOtaibi
Summary: This study investigates a cost-effective and simple method for activating metal-free self-supported carbon felt. By chemically modifying and electrochemically treating the carbon felt, significant enhancement in capacitance, conductivity, and capacitance retention was achieved, demonstrating the potential utility of electrochemically activated carbon felt electrodes in supercapacitor devices.
Article
Materials Science, Multidisciplinary
Sheng Yong, Chengning Yao, Nicholas Hillier, Hyunho Kim, Martin Holicky, Sihui Liu, Regan Doherty, Felice Torrisi, Stephen Beeby
Summary: This study reports a method for introducing MXene into textile-based supercapacitors to enhance their electrochemical performance. By fabricating a porous, flexible, and mechanically durable fiber structure, and depositing MXene or spraying MXene nanosheets onto the textile, MXene was successfully incorporated into the supercapacitors. The experimental results show that the addition of MXene leads to higher areal capacitance and energy density, resulting in improved performance compared to conventional supercapacitors.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Danyun Lei, Xiang-Dan Li, Sivaprakasam Radhakrishnan, Byoung-Suhk Kim
Summary: Polyaniline (PANI) decorated salt-activated phenolic resin (PR)/polyacrylonitrile (PAN)-based carbon nanofibers (PANI/CNFs) were prepared for supercapacitor applications through consecutive solution electrospinning, salt activation, and PANI electrode-position methods. The specific capacitance of the PANI-decorated activated PANI/CNFs was approximately 336 F g-1 at a current density of 1 A/g. The device exhibited an energy density of 13.33 Wh kg-1 at a power density of 200 W kg-1 with a retention life of nearly 100% after 5,000 cycles.
Review
Materials Science, Multidisciplinary
Shikha Yadav, Zunjarrao Kamble, Bijoya Kumar Behera
Summary: The concept of multifunctional composites has gained significant attention in recent years. The emergence of textile structural power composites has provided a new opportunity for creating rigid, lightweight structural composites with energy storage capabilities. This review highlights the recent developments and potential applications of textile-reinforced structural power composites in various fields.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Environmental
Debarani Devi Khumujam, Tolendra Kshetri, Thangjam Ibomcha Singh, Nam Hoon Kim, Joong Hee Lee
Summary: In this study, wet spun MXene/Carbon Fiber (W-MX/CF) derived materials were used as the electrodes for fiber-shaped supercapacitors (FSSCs), with ultrathin NiCo2S4 electrodeposited on W-MX/CF as the positive electrode. The assembled solid-state fiber-shaped asymmetric supercapacitor showed high energy density and power density.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Huma Khan, Jasjeet Kaur, Minoo Naebe, Sally Hutchinson, Russell J. Varley
Summary: This study investigates the successful wet spinning and carbonization of a low-cost polyacrylonitrile (PAN) polymer blended with traditional carbon fiber precursor. The blended precursor fibers exhibited uniformly cross-sections and comparable mechanical properties to commercially available precursor fibers. The produced carbon fibers were of high quality and exhibited uniform properties. This approach has the potential to develop scalable low-cost carbon fiber suitable for various important applications.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiaomeng Yang, Yajiao Cui, Yingyu Qi, Luyan Fu, Armin Rezayan, Chunbao Charles Xu, Jianshe Wang, Dong Sui, Yongsheng Zhang
Summary: In this work, NiO nanoparticles supported on activated carbon nanofibers (NiO/ACNFs) were synthesized by atomic layer deposition technique and used directly as self-supporting binder-free electrodes for supercapacitors. The NiO/ACNFs electrodes showed high specific capacitance and good rate capability. The excellent electrochemical capacitance performance of NiO/ACNFs can be attributed to the high conductivity and large specific surface area of ACNFs, as well as the high capacity, small size, and even dispersion of NiO.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jisu Kim, Jin Gu Kang, Jaewon Choi, Paul V. Braun, Sung-Kon Kim
Summary: This study demonstrates the formation of fiber electrodes on a carbon fiber bundle with a surface mesostructured by single-walled carbon nanotubes via colloidal self-assembly. The three-dimensional structure of the fiber electrodes provides porosity and bicontinuous paths for charge transport, resulting in high energy and considerable rate retention capability. Additionally, the fiber microsupercapacitor composed of a twisted pair of fiber electrodes with a solid polymer electrolyte exhibits significant capacitance, rate retention capability, and cycle stability for at least 7000 charge-discharge cycles.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
De-Cai Wang, Min-Da Xu, Zhen Jin, Yi-Fan Xiao, Yang Chao, Jie Li, Shao-Hua Chen, Yi Ding
Summary: A porous MgO nanosheet-modified activated carbon fiber felt (MgO@ACFF) was prepared and characterized for fluoride removal. The MgO@ACFF showed fast adsorption rate with more than 90% of fluoride ions being adsorbed within 100 min, and the adsorption kinetics followed a pseudo-second-order model. The Freundlich model fitted well for the adsorption isotherm of MgO@ACFF. The MgO@ACFF exhibited efficient fluoride removal from water in a wide pH range of 2-10 and a fluoride adsorption capacity larger than 212.2 mg/g at neutral. Co-existing anions had an effect on the fluoride removal efficiency of MgO@ACFF. The mechanism of fluoride adsorption by MgO@ACFF was revealed to be a hydroxyl and carbonate co-exchange mechanism through FTIR and XPS analysis. The column test showed that MgO@ACFF had the potential to be used as a fluoride adsorbent.
Article
Chemistry, Physical
Lei Wang, Xiaolong Li, Rong Liu, Yuanming Wang, Yang Bai, Yang Liu, Yu Ma, Guohui Yuan, Zaiping Guo
Summary: A novel two-step protonic acid catalysis method has been developed to engineer fast electronic transport channels in oxygen-functionalized carbon materials, enabling high charge storage capability and rapid charge transfer; the resulting functionalized carbon textile features high oxygen content and electrical conductivity, maintaining the integrity of the carbon network while embedding abundant active oxygen functional groups.
Article
Engineering, Environmental
Nikolaos Kostoglou, Christian Koczwara, Sebastian Stock, Christos Tampaxis, Georgia Charalambopoulou, Theodore Steriotis, Oskar Paris, Claus Rebholz, Christian Mitterer
Summary: The study investigates the potential applications of a nanoporous polymer-/polyaniline-derived activated carbon (PDAC) in hydrogen storage and supercapacitor energy storage. The PDAC demonstrates superior hydrogen adsorption performance and supercapacitor cell performance compared to conventional commercial activated carbon, attributed to the smaller pore sizes of the PDAC structure.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yuanming Wang, Xue Wang, Xifei Li, Xiaolong Li, Yang Liu, Yang Bai, Huanhao Xiao, Guohui Yuan
Summary: A high-performance, tailorable and foldable solid-state asymmetric supercapacitor was developed through regulating oxidization time and MXene loading, fundamentally avoiding the risk of active materials detaching during mechanical deformation. This device achieved extended voltage window, high energy density, and capacitance retention after cycles, showing potential practical application.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Thermodynamics
Patrice Portugau, Martin Torres, Luis Yerman, Andres Cuna, Jorge Castiglioni
Summary: In this study, the deconvolution of multi-stage processes in the co-combustion of oil shales and Eucalyptus grandis sawdust from Uruguay was carried out using Lorentz distribution and activation energies were obtained through an isoconversional-iterative procedure. The results showed good agreement between the calculated activation energies and experimental data, with a maximum average error smaller than 3%.
THERMOCHIMICA ACTA
(2021)
Article
Environmental Sciences
Elen Leal da Silva, Andres Cuna, Martina Cadorin, Jossano Saldanha Marcuzzo, Claudio Radtke, Mauricio Ribeiro Baldan, Aline Castilho Rodrigues-Siqueli, Celia de Fraga Malfatti
Summary: The study compared the catalytic performance of PdSn catalysts supported on in-house synthesized activated biocarbon (aBC) and commercial Vulcan carbon (V) for ethanol oxidation reaction (EOR) in an alkaline medium. Results showed that PdSn/V catalyst exhibited higher catalytic activity than PdSn/aBC, attributed to the higher concentration of SnO2 in PdSn/V. The presence of SnO2 accelerated the adsorption of ethanol on Pd surface, enhancing ethanol oxidation kinetics and improving catalytic activity of PdSn/V.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Materials Science, Multidisciplinary
Rodrigo Barbosa Hilario, Thales Henrique de Moraes, Joseane Mercia da Rocha Pimentel Goncalves, Meriene Gandara, Emerson Sarmento Goncalves
Summary: Energy storage devices with flexible electrodes are important for modern printed electronics systems. In this research, a composite material consisting of carbon fiber felt and polyaniline was developed to improve the transport and storage of charges. The electrochemical performance of the electrode was enhanced through thermal and electrochemical treatment of the carbon fiber surface.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Electrochemistry
Bianca Fortes Palley, Julio Cesar Artur, Milena Nakagawa de Arruda, Gustavo Freitas de Souza, David Alexandro Graves, Ana Livia de Carvalho Bovolato, Elenice Deffune, Arthur Oscar Schelp, Emerson Sarmento Goncalves, Marli Leite de Moraes
Summary: Alzheimer's disease is a progressive neurodegenerative disease characterized by cognitive impairment and memory deterioration that requires early diagnosis for effective treatment. The use of immunosensors to detect Alzheimer's disease biomarkers provides a quick and affordable alternative for early detection. The development of Screen-Printed Electrodes (SPEs) meets the growing demand for biosensor devices.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Energy & Fuels
A. L. C. Assuncao, R. M. Sanches, E. S. Goncalves
Summary: The main objective of this study was to investigate whether adding graphite nanoplatelets at ultra-trace concentrations (mg.kg-1) in negative plates could affect the electrochemical behavior of lead-acid batteries. By conducting electrical tests, it was found that certain concentrations of these additives can improve CCA performance, charge acceptance, and PSOC cycling. SEM analysis and evaluation of macroporosity variation revealed that the improvement in electrochemical performance is associated with structural changes caused by the addition of these additives. The polarization was only slightly altered due to the small amount of additives involved, indicating that water loss was not significantly affected.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
David A. Graves, Lucas B. Theodoroviez, Thais C. de Oliveira, Luciana S. Cividanes, Neidenei G. Ferreira, Dalva A. L. Almeida, Emerson S. Goncalves
Summary: Composite electrodes were prepared by electrodeposition of PANI on CFF substrate, and a systematic study was conducted to investigate the effects of heat treatment, synthesis time, and molar ratio on the specific capacitance and mass of deposited PANI. The samples were characterized using physical-chemical instrumental techniques, and it was found that all parameters are crucial for optimizing the load storage capacity of the materials. The sample CFF 2000 2:1 1350s exhibited the highest specific capacitance of 303.76 F.g-1.
ELECTROCHIMICA ACTA
(2023)
Article
Environmental Sciences
Mirian Elizabeth Casco, Valentin Moreno, Martin Duarte, Karim Sapag, Andres Cuna
Summary: Although landspreading and incineration are currently used for the disposal of primary sludge and biosludge in Uruguayan pulp mill wastewater treatment plants, direct incineration for energy recovery is the most preferred method. This study proposes hydrothermal carbonization (HTC) as a pre-treatment method to enhance the fuel characteristics of the sludge. The results show that HTC affects the sludge differently in terms of carbon fixation, energy densification, and conversion efficiency.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Materials Science, Multidisciplinary
Milena Nakagawa de Arruda, Bianca Fortes Palley, Gustavo Freitas de Souza, Ligia Lopez, Marcelo Andre Petry Pontes, Willians Principe Fernandes, Meriene Gandara, Francisco Bolivar Correto Machado, Luiz Fernando de Araujo Ferrao, Emerson Sarmento Goncalves
Summary: In this study, a few-layer graphene obtained by electrochemical exfoliation was combined with chitosan to form a uniform composite with low oxygen content. The electrochemically exfoliated graphene had higher crystallinity and uniform crystallite size, resulting in a homogeneous dispersion in the chitosan matrix. Chemical interactions between the graphene and chitosan allowed for a high carbon C/O ratio, leading to high conductivity.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Mariana A. Vieira, Tainara L. G. Costa, Gustavo R. Goncalves, Daniel F. Cipriano, Miguel A. Schettino Jr, Elen L. da Silva, Andres Cuna, Jair C. C. Freitas
Summary: The reduction of graphene oxide (GO) by thermal and/or chemical treatments leads to the production of reduced graphene oxide (rGO) which possesses improved electrical conductivity. This study focuses on the preparation of GO from graphite recycled from spent Li-ion batteries using mixtures of sulfuric and phosphoric acids, followed by thermal reduction to obtain rGO papers. The electrochemical properties of the rGO papers were evaluated, and the results showed a strong correlation between the properties and the chemical and structural features of the materials, especially for samples containing sulfur and phosphorus elements. This work presents a facile and low-cost alternative for the production of rGO papers using recycled graphite, with promising applications as supercapacitor electrodes.
C-JOURNAL OF CARBON RESEARCH
(2023)
Article
Electrochemistry
N. Prieto, E. Leal da Silva, J. R. Castiglioni, A. Cuna
Summary: A new route for the synthesis of Fe2P-based electrocatalysts was proposed and studied for its application in the hydrogen evolution reaction (HER). The electrocatalytical performance and H2 production were evaluated, and although the synthesis method shows potential, improvements are still needed.
ELECTROCHIMICA ACTA
(2024)
Proceedings Paper
Electrochemistry
Ary L. C. Assuncao, Emerson S. Goncalves
Summary: Testing different graphenes pre-dispersed in water as negative plate additives in lead-acid batteries, it was found that certain concentrations can increase electrochemical performance by enhancing the electrochemical activity of the disrupted film and increasing porosity. Small concentrations of graphene can improve HRPSOC cycling and cycling with discharge between pauses of 60s.
PROCEEDINGS OF 11TH INTERNATIONAL CONFERENCE ON LEAD-ACID BATTERIES (LABAT'2021)
(2021)
Proceedings Paper
Electrochemistry
Ary L. C. Assuncao, Emerson S. Goncalves, Meriene Gandara, Thais C. Gaino
Summary: This study compares several technologies using TRL and MRL to quantitatively and systematically analyze decision-making. A decision algorithm was created, taking into account positive grids, NAM, PAM, electrolytes, new arrangements, and new concepts. The challenges for scaling up have been quantified to guide basic research and improvements in factories.
PROCEEDINGS OF 11TH INTERNATIONAL CONFERENCE ON LEAD-ACID BATTERIES (LABAT'2021)
(2021)
Article
Materials Science, Multidisciplinary
Guilherme Charles Blanco, Manuella Gobbo de Castro Munhoz, Aline Castilho Rodrigues, Andres Cuna, Ana Claudia Pina, Jossano Saldanha Marcuzzo, Mauricio Ribeiro Baldan
Summary: Carbon material is widely used in advanced energy storage devices, with research focusing on new forms of carbon like nanotubes and graphene. Converting human hair into carbon filaments for supercapacitors shows promise in energy storage technology development.
MATERIA-RIO DE JANEIRO
(2021)
Article
Materials Science, Multidisciplinary
Nila Cecilia de Faria Lopes Medeiros, Leonardo Iusuti de Medeiros, Ariane Aparecida Teixeira de Souza, Guilherme Frederico Bernardo Lenz e Silva, Alan Fernando Ney Boss, Gisele Aparecida Amaral-Labat, Mauricio Ribeiro Baldan
Summary: This study presents the electromagnetic properties of a Radar Absorbing Material (RAM) made with Silicon Carbide (SiC) and Carbon Black (CB) as additives. The results show that the SiC/CB composite with 1 wt% of CB exhibited the best electromagnetic radiation absorption at 16.8 GHz.
MATERIA-RIO DE JANEIRO
(2021)
Article
Materials Science, Multidisciplinary
Ananta Dutta, Surjya K. Pal, Sushanta K. Panda
Summary: In the realm of micro-Friction Stir Welding (FSW), this study investigates the influence of pinless and pin tool on hook formation, temperature evolution, and bonding mechanisms. The study reveals that pin tool improves joint strength and reduces axial force during traversing. Pin tool also exhibits a higher proportion of recrystallized grains compared to pinless tool, resulting in better weld quality.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Abdelmalek Habes, Mehdi Derradji, Oussama Mehelli, Fouad Benaliouche, Slimane Abdous, Youcef Medjaouri, Nour Chirine Abderrahim, Hakima Fodil, Mohamed El Amine Kadi
Summary: In recent years, there has been significant progress in advancing nanomaterials with exceptional properties for electromagnetic (EM) wave absorption. This study investigates the application of a novel thermosetting phenolic resin as a polymeric matrix for EM shielding, highlighting the enhancement of stability with the incorporation of zinc oxide nanoparticles.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaoxing Zhang, Yongchao Luo, Kai Xu, Weihao Liu, Shuangshuang Tian, Benli Liu, Jiahao Wang, Feng Hu
Summary: This study calculates and analyzes the adsorption performance and sensing characteristics of Cu-MoTe2 for SF6 decomposition components. The results show that Cu-MoTe2 chemisorbs SO2 and H2S, while physisorbs SOF2. Cu-MoTe2 has the potential to be used as a chemical sensor material.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xin Qu, Xinyu Sang, Yarong Lv, Ce Wang, Ping Hu, Quanyi Guo, Yong Liu
Summary: In this study, a PLLA-COI multilayer nanofiber membrane was prepared to prevent peritendinous adhesion, and it was found to have good cell compatibility and anti-adhesion effect, effectively promoting the recovery of Achilles tendon injury.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Ching-Yuan Ho, Chen-Yi Su, Wei-Zhe Hu
Summary: An equivalent electrical circuit (EEC) is established to understand the droplet-base electricity generation (DEG) mechanism, using voltage-time curve decomposition. The concept of Debye length is introduced to explain charge density at the interface between the ionic droplet and the PTFE surface. This study provides valuable insights into the exponential decay of output voltage and the improvement of solar panel performance in alternating rainy and dry weather through correct circuit design.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Iori Ono, Takeo Oku, Atsushi Suzuki, Sakiko Fukunishi, Tomoharu Tachikawa, Tomoya Hasegawa
Summary: The effects of adding rubidium (Rb) and ethylammonium (CH3CH2NH3, EA) to guanidinium [C(NH2)3, GA] based CH3NH3PbI3 perovskite solar cells were investigated. The lattice constants and (100)-orientation of EA and Rb-modified perovskite crystals increased compared to the as-prepared perovskite. The addition of GA and EA effectively improved the photovoltaic properties of the device under indoor light conditions.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xuewu Li, Hongxing Wang, Zhiguo Xing, Yanfei Huang, Weiling Guo, Haidou Wang, Yanfang Zhang, Longlong Zhou
Summary: This study prepared a novel composite antireflective structure with slotted holes using FDTD simulation combined with femtosecond laser design to further improve the infrared anti-reflective performance. The results show that the antireflection performance of the simulated groove-hole composite structure is better than that of the individual groove and hole structures, and the nanoparticle structures can further improve the antireflection performance in the infrared region.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Sepideh Soltani, Hajar Ghanbari, S. Mohammad Mirkazemi
Summary: In this study, h-BN and r-BN structures were synthesized through controlled nitridation. The h-BN exhibited sheet-like morphology, while the r-BN formed needle-like hollow structures.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Wanying Zhang, Xiaoyuan Wang, Yibo Ai, Weidong Zhang
Summary: This study investigates the impact of oxygen corrosion on the mechanical properties of uranium and uranium alloys and develops a feature-guided decision tree algorithm for prediction. The research highlights crucial correlations discovered through feature engineering, improving the performance of machine learning models. The mechanical properties of uranium and uranium alloys after oxygen corrosion are successfully predicted with a prediction error of less than 5%.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Qiong Cheng, Yao Zhao, Juntao Zhuang, Ahmad M. Alshamrani
Summary: This study presents a model to simulate the transient dynamics of a car's hood door during an accident, with reinforced structure in the axial direction using graphene nanoplatelets. The results are verified through comparison with open-source results and deep neural networks. The study highlights the importance of graphene nanoplatelets in the composite system's transient and forced vibrations, and provides valuable suggestions for future structural designs.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Rostyslav Nizinkovskyi, Thorsten Halle, Manja Krueger
Summary: Cu-precipitation in reactor pressure vessel steels is a major concern for the degradation of mechanical properties. This study develops and implements a non-local phase-field model to investigate the equilibrium morphology of precipitates in the over-aged state. The model confirms that the precipitates should have an oblate lath-like shape, which is supported by experimental data. The orientation of the precipitates is consistent with literature. The mechanism of morphology accommodation is explained using the invariant-line method. However, the equilibrium values of elongation significantly deviate from experimental data, likely due to the metastable state of the precipitates during the coarsening process.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Xiaowei Li, Yafei Liu, Shiyu Luan, Deqing Ma, Xiaoyu Liu, Qiangbing Liu, Jinhui Wang
Summary: In this study, the hot deformation behavior of as-cast Mg-2Ho binary alloy under different strain rates and deformation temperatures was systematically studied. The microstructure and dynamic recrystallization mechanisms were analyzed using SEM and EBSD techniques. A strain-compensated Arrhenius constitutive equation and a PSO-BP ANN model based on machine learning were established to analyze the flow behavior. The experimental results showed that the flow stress decreased with increasing temperature and decreasing strain rate. The PSO-BP ANN model demonstrated good accuracy in predicting flow stress.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Jiaxin Liu, Guangkai Liao, Zhenyan Xie, Bowen Li, Lingna Cui, Yuejun Liu
Summary: This study investigated the rheological behavior of polyamide 6 (PA6) film during biaxial stretching and found that the elastic-plastic deformation during stretching affected the stress rebound or relaxation during heat setting. The relaxation spectrum and activation energy spectrum were calculated, revealing the process of stress relaxation as energy release and stress rebound as energy absorption. The results provide theoretical guidance for understanding the biaxial stretching deformation mechanism of polymer films.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Monisha Manathanath, Benu George, Juraij Kandiyil, Subramaniam Sujatha, Suchithra Tharamel Vasu, Sujith Athiyanathil, Unnikrishnan Gopalakrishna Panicker
Summary: This study explores a method that combines a biodegradable polymer scaffold with a photosensitizer for antibacterial photodynamic therapy. The results show a high inhibition rate against E. coli and S. aureus using this method.
MATERIALS TODAY COMMUNICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Mohammad Hemmat Esfe, S. Ali Eftekhari, S. Mohammad Sajadi, Mohammad Hashemian, Soheil Salahshour, Seyed Majid Motallebi
Summary: In this study, an artificial neural network was used to predict the dynamic viscosity of MWCNT-ZnO (25:75)/SAE 10W40 oil nano-lubricant. The temperature, shear rate, and solid volume fraction were found to have significant effects on the dynamic viscosity, with shear rate being the most influential parameter.
MATERIALS TODAY COMMUNICATIONS
(2024)