Article
Chemistry, Physical
Diana M. Arciniegas Jaimes, Valeria C. Fuertes, M. Cecilia Blanco, German Tirao, Silvina Limandri, Vivian M. Nassif, Gabriel J. Cuello, Alejandro Rodriguez, Edilso Reguera, Raul E. Carbonio
Summary: This study reports the synthesis, structural characterization, and magnetic properties of La3Mn2NbO9 double perovskite. The crystal structure shows a high degree of cation order and magnetization measurements reveal the presence of ferromagnetic and antiferromagnetic interactions at different temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Li Yang, Yuan Yuan, Jiawei Liu, Tao Chen, Aitao Tang, Fusheng Pan
Summary: In this study, the diffusion behavior of Zn in the primary Mg phase (α(Mg)) was investigated using GD-OES characterization, with self-consistent diffusion coefficients obtained at different temperatures. The method applied in this study is suitable for systems where the second element has limited solubility in the primary element phase.
Article
Physics, Applied
Zeen Zhao, Yecheng Ding, Xuefeng Zhao, Yaojin Wang, Ben Xu, Guanghua Liu, Guoliang Yuan, Jun-Ming Liu
Summary: MAPbI(3), MAPbBr(3), and CsPbBr3 are excellent halide perovskite semiconductors with super long carrier diffusion length, long minority carrier lifetime, and large light absorption coefficient. Photocarriers can induce strong photostriction and an electric field can enhance photocarrier diffusion and crystal expansion. The research proves the importance of the strong coupling among photocarriers, electric fields, and crystal lattices for developing semiconductor devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Zeen Zhao, Yecheng Ding, Xuefeng Zhao, Yaojin Wang, Ben Xu, Guanghua Liu, Guoliang Yuan, Jun-Ming Liu
Summary: This study reveals that MAPbI(3), MAPbBr(3), and CsPbBr3 are excellent halide perovskite semiconductors with significant photostriction and photo-electro-striction effects.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Daming Zheng, Catherine Schwob, Yoann Prado, Zakarya Ouzit, Laurent Coolen, Thierry Pauporte
Summary: Improving the quality and properties of perovskite thin-film solar cells is crucial for their large-scale commercialization. In this study, the effect of introducing gold nanoparticles (Au_NPs) into MAPbI(3) layers for solar cells was investigated. Experimental results showed a 12% improvement in stabilized efficiency by introducing an optimized amount of Au_NPs. The nanoparticles were found to improve the quality of the perovskite films by promoting the formation of monolithic grains with few defects and reduced grain boundaries, which are desirable for high efficiency.
Article
Materials Science, Multidisciplinary
Hsinhan Tsai, Lei Pan, Xinxin Li, Jinkyoung Yoo, Sergei Tretiak, Xuedan Ma, Lei R. Cao, Wanyi Nie
Summary: The study reports a perovskite polycrystalline thin film detector fabricated by solution method, which is a low-cost, scalable technology for radiation imaging. However, the thin volume of the detector limits its sensing efficiency for high-energy X-ray photons. Detailed characterizations reveal that a charge multiplication effect is responsible for the observed high gain. The study also identifies that the use of butylamine spacers in the 2D perovskite thin film leads to a larger efficiency gain compared to phenylethylamines.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Chemistry, Physical
Daming Zheng, Polina Volovitch, Thierry Pauporte
Summary: This article reviews the emerging applications of Glow Discharge Optical Emission Spectroscopy (GD-OES) technique in the field of perovskite solar cells (PSCs) research. The GD-OES technique provides a broad range of information by tracking the depth distribution of light to heavy elements. After discussing its advantages and limitations and comparing it with other analytical techniques, the article shows how GD-OES is employed to provide structural information on perovskite solar cells. It has allowed researchers to investigate the full perovskite film formation process, track the distribution of elemental cations, and gain insights into the effects of additives on film formation.
Article
Nanoscience & Nanotechnology
Fatima Haydous, Sijun Luo, Kuan-Ting Wu, Craig Lawley, Max Dobeli, Tatsumi Ishihara, Thomas Lippert
Summary: Perovskite oxynitride semiconductors have emerged as promising photoelectrode materials for photoelectrochemical water splitting, with their surface characteristics and evolution playing a significant role in their PEC applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Chao Yang, Yue Meng, Bo Xie, Shengjie Xia
Summary: The study systematically investigated the photon/matter interactions between soft X-rays and three selected polypeptides, revealing enhanced degradation in pre-solvated polypeptides due to the formation of photo-generated radicals. XPS analysis identified chemical changes in the polypeptides, with different degradation mechanisms observed in poly-Gly and poly-Arg. The critical role of amino acid interactions in the free-radical-generating living environment under irradiation was analyzed, highlighting the importance of sample preparation history in radiation-related chemical processes.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2021)
Article
Chemistry, Physical
Shixun Wang, Stephen Kershaw, Andrey L. Rogach
Summary: In this study, the conventional saturation recrystallization process failed to produce pure Dion-Jacobson-phase ODASnBr(4) perovskite single crystals, leading to the formation of a complex mixture with impurities. Introducing primary alcohols improved the crystallinity and photoluminescence quantum yield of DJ perovskites by promoting lattice coordination and removing undesired surface-absorbed water and byproducts. The strategy presented in this study enhances the thermal stability and oxidation resistance of ODASnBr4[alcohol] perovskite microcrystals, paving the way for the development of lead-free DJ perovskite materials with strong emissions and reliable stabilities.
CHEMISTRY OF MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Xiaoxu Peng, Zheng Wang
Summary: The article provides an overview of the development of solution electrode glow discharge (SEGD) in various fields and discusses its discharge mechanism. SEGD has unique advantages for optical emission spectrometry and mass spectrometry, and it has broad research potential in biology and medicine, material synthesis, electrochemistry, etc.
CHINESE CHEMICAL LETTERS
(2022)
Article
Energy & Fuels
Natalia Maticiuc, Tim Kodalle, Bunyamin Umsur, Tobias Bertram, Robert Wenisch, Yajie Wang, Isheta Majumdar, Hasan A. Yetkin, Daniel Abou-Ras, Norbert Schafer, Christian A. Kaufmann, Rutger Schlatmann, Iver Lauermann
Summary: The study found that in co-evaporated CIGSe absorber layers treated with RbF, copper gradually depletes towards the surface, leading to changes such as gallium diffusion towards the surface. A higher copper content results in less surface-oriented gallium diffusion and less rubidium incorporation, forming a thinner RbInSe2 layer.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Applied
Krzysztof Greda, Pawel Pohl
Summary: A new method of optical emission spectrometry (OES) using micmplasma source was developed for the determination of Na, K, Mg, Ca, and Zn in wine, without the need for acid digestion. The study also found that red wines have higher levels of K and Mg, and different grape varieties can be distinguished based on the concentrations of K and Ca.
Article
Chemistry, Multidisciplinary
Xin Song, Qian Li, Jiang Han, Chuang Ma, Zhuo Xu, Haojin Li, Peijun Wang, Zhou Yang, Qingyue Cui, Lili Gao, Zewei Quan, Shengzhong (Frank) Liu, Kui Zhao
Summary: Metal-based halide perovskites are dominant in optoelectronics, but toxicity limits their applications. This study introduces a large metal-free perovskite crystal with long carrier lifetime and high photoluminescence quantum yield for light emission and X-ray detection.
ADVANCED MATERIALS
(2021)
Article
Multidisciplinary Sciences
Ihor Cherniukh, Gabriele Raino, Thilo Stoeferle, Max Burian, Alex Travesset, Denys Naumenko, Heinz Amenitsch, Rolf Erni, Rainer F. Mahrt, Maryna I. Bodnarchuk, Maksym V. Kovalenko
Summary: Through precise structural engineering, perovskite nanocrystals are co-assembled with other nanocrystal materials to form a range of binary and ternary perovskite-type superlattices that exhibit superfluorescence. These ABO3 superlattices, as well as the binary NaCl and AlB2 superlattice structures that we demonstrate, exhibit a high degree of orientational ordering of the CsPbBr3 nanocubes. They also exhibit superfluorescence – a collective emission that results in a burst of photons with ultrafast radiative decay (22 picoseconds) that could be tailored for use in ultrabright (quantum) light sources.
Article
Nanoscience & Nanotechnology
W. Roman Acevedo, M. H. Aguirre, C. Ferreyra, M. J. Sanchez, M. Rengifo, C. A. M. van den Bosch, A. Aguadero, B. Noheda, D. Rubi
Summary: Memristive systems show potential for resistive random access memories and neuromorphic computing devices. In this paper, different strategies to optimize the multi-mem behavior of topotactic redox La1/2Sr1/2Mn1/2Co1/2O3-x (LSMCO) films were analyzed. It was found that epitaxial (110) LSMCO stimulated with current pulses demonstrated the best memory response.
Article
Chemistry, Physical
Xiang Yao, Christof W. Schneider, Alexander Wokaun, Thomas Lippert
Summary: The gas-phase reaction dynamics and kinetics play a crucial role in laser induced plasma. This study reveals that the expansion dynamics in O-2 differ from those in Ar due to the formation of MO+ species. Furthermore, a preferred kinetic energy range of up to 5 eV is observed for chemical reactions leading to the formation of MO species in an expanding plasma under high oxygen background pressure.
Article
Chemistry, Multidisciplinary
Alexandra Palla-Papavlu, Sorin Vizireanu, Mihaela Filipescu, Thomas Lippert
Summary: This study reports a rapid, efficient, and solvent-free laser-based method for fabricating ultra-sensitive ammonia sensors, and validates its excellent performance in detecting ammonia concentrations. Laser-printed carbon nanowall-based sensors show low detection limits and fast response times, as well as high stability and durability.
Editorial Material
Materials Science, Multidisciplinary
Thomas Lippert
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Christof W. Schneider, Thomas Lippert
Summary: We investigated the properties of laser-induced plasma plumes generated by ns pulsed excimer lasers in pulsed laser deposition of thin oxide films. The focus was on the evolution of chemical species and expansion mechanisms of the plasma plume. Species composition plays a crucial role in the overall dynamics of the plume, especially when three or more elements are involved. We examined the temporal evolution, chemical composition, and electric charge of the plume species. The study also discussed the contribution of different oxygen sources to the oxygen content of oxide films and the importance of compositional transfer for the growth of oxide thin films, such as oxygen or Li.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Physics, Applied
J. Belhadi, Z. Hanani, U. Trstenjak, N. A. Shepelin, V. Bobnar, G. Koster, J. Hlinka, D. Pergolesi, T. Lippert, M. El Marssi, M. Spreitzer
Summary: Tuning and stabilizing large imprint in ferroelectric thin films is crucial for designing micro-electromechanical devices. This study demonstrates the influence of epitaxial strain on the imprint and properties of PMN-33PT films grown on different substrates, and highlights the potential for maximizing the figure of merit in piezoelectric devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Rodrigo Leal Martir, Maria Jose Sanchez, Myriam Aguirre, Walter Quinonez, Cristian Ferreyra, Carlos Acha, Jerome Lecourt, Ulrike Luders, Diego Rubi
Summary: In this study, it is demonstrated that there is an exchange of oxygen vacancies (OV) between the device and the environment in Pt/TiOx/TaOy/Pt devices under electrical stress, but this exchange is suppressed once the device is stabilized. The memristive behavior is determined by the internal electromigration between the TiOx and TaOy layers.
Article
Physics, Applied
G. A. Ramirez, W. Roman Acevedo, M. Rengifo, J. M. Nunez, M. H. Aguirre, J. Briatico, D. Rubi
Summary: In this work, the coexistence of volatile and nonvolatile memristive effects in epitaxial phase-separated La0.5Ca0.5MnO3 thin films was investigated. Volatile resistive changes arising from self-heating effects near a metal-to-insulator transition were observed at low temperatures (50 K). At higher temperatures (140 and 200 K), a combination of volatile and nonvolatile effects resulting from the synergy between self-heating effects and ferromagnetic-metallic phase growth induced by an external electrical field was measured. These findings demonstrate the potential of phase separated manganites for electrically mimicking the behavior of neurons and synapses on the same device, which is significant for the development of neuromorphic computing hardware.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
A. Roman, A. Lopez Pedroso, K. Bouzehouane, J. E. Gomez, A. Butera, M. H. Aguirre, M. Medeiros Soares, C. Garcia, L. B. Steren
Summary: The competition between shape and perpendicular magnetic anisotropies in magnetic thin films leads to unconventional magnetic behaviors. In ferromagnetic thin films, the out-of-plane component of magnetic anisotropy can induce a transition from planar to stripe-like magnetic domains above a critical thickness, tc. This article presents a detailed study of the magnetization switching mechanism in FePt thin films where this phenomenon is observed. Micromagnetic simulations and experiments show that below tc, the reversal mechanism is well described by the two-phase model, while above this thickness, the magnetization within each stripe reverses through coherent rotation. The out-of-plane component and its temperature dependence of the magnetic anisotropy were also analyzed, indicating that substrate-induced strains are responsible for the abnormal coercive field behavior observed for FePt films with t > tc.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Craig Lawley, Arian Arab, Anna Hartl, Aleksandar Staykov, Max Doebeli, Thorsten Schmitt, Daniele Pergolesi, Thomas Lippert, Vladimir N. Strocov
Summary: This study investigates the electronic structure of the photocatalyst oxynitride LaTiO2N and its evolution during the oxygen evolution reaction using soft-X-ray ARPES. It is found that distortions and defects associated with titanium and lanthanum-nitrogen atoms lead to electron trapping and charge recombination, which limits the efficiency of LaTiO2N. The presence of an electron accumulation layer and its evolution suggests complex mechanisms of the photoelectrochemical reaction, especially in the presence of co-catalysts or passivation layers.
COMMUNICATIONS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fernando Fabris, Enio Lima, Jorge Martin Nunez, Horacio E. Troiani, Myriam H. Aguirre, Victor Leboran, Francisco Rivadulla, Elin L. Winkler
Summary: The effects of vacuum annealing on the magnetotransport properties of iron oxide nanoparticles are investigated. High temperature treatment reduces the electrical resistivity and induces surface oxidation. The tunnel barrier width decreases with increasing annealing temperature, leading to a reduction in interparticle magnetoresistance.
Article
Materials Science, Multidisciplinary
Santiago D. Barrionuevo, Federico Fioravanti, Jorge M. Nunez, Mauricio Llaver, Myriam H. Aguirre, Martin G. Bellino, Gabriela I. Lacconi, Francisco J. Ibanez
Summary: Direct electrooxidation of ethanol on Ni foam produces ultra-small and highly crystalline graphene-like structures named carbon quantum dots (CQDs). Experiments and simulations show that the absorbance bands of synthesized CQDs are dominated by small sp(2) domains and transition from yellow to red after 48 hours. Fluorescence emission is governed by medium-sized sp(2) domains and oxygen-containing groups, which enable fast photodegradation of organic dyes. This work provides crucial insights into the electrochemical synthesis and optical properties of carbon nanostructures, as well as their effectiveness in degrading contaminants in water.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Review
Chemistry, Multidisciplinary
Nick A. Shepelin, Zahra P. Tehrani, Natacha Ohannessian, Christof W. Schneider, Daniele Pergolesi, Thomas Lippert
Summary: Nanoscale thin films have a wide range of applications in various fields, and their functional tunability based on chemical composition has driven human progress. Pulsed laser deposition is an important method for fabricating thin films, using laser energy to form a plasma and deposit material onto a substrate. This technique allows for the production of crystalline films with a wide range of atmospheric conditions and chemical complexity. However, achieving high quality films with desired composition requires rigorous optimization of growth parameters. This tutorial review provides an overview of pulsed laser deposition, discusses the effects of growth parameters on film properties, and explores in situ monitoring techniques.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Physical
M. A. Laguna-Marco, J. Herrero-Albillos, M. H. Aguirre, M. Rueda-Jimenez, I. Mikulska
Summary: Ir1-xCoxO2 thin films with rutile crystal structure were successfully prepared by reactive co-sputtering deposition. The doped films showed lower resistivity and similar magnetic response as pure IrO2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Jorge M. Nunez, Simon Hettler, Enio Lima Jr, Gerardo F. Goya, Raul Arenal, Roberto D. Zysler, Myriam H. Aguirre, Elin L. Winkler
Summary: Onion-like nanoparticles with unique magnetic properties and controllable coupling between magnetic phases have potential applications in magnetoelectronics. The synthesized Fe3O4/MgO/CoFe2O4 nanoparticles show epitaxial growth and cubic shape, with enhanced coercivity field and exchange bias effect.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
