Article
Chemistry, Physical
Djoko Triyono, Y. Yunida, Rifqi Almusawi Rafsanjani
Summary: This study investigated the effect of heat treatment on the structural, magnetic, and electrical properties of La2FeMnO6 prepared via the sol-gel and sintering method. It was found that varying heat-treatment conditions can significantly influence the properties of the material.
Article
Engineering, Chemical
Maryam Saghir, Malik Adeel Umer, Ashfaq Ahmed, Nasbah Bint Monir, Umair Manzoor, Abdul Razzaq, Luo Xian, Khwaja Mohammad, Muhammad Shahid, Young-Kwon Park
Summary: High energy milling significantly reduces the size of plate-like alumina powders and improves the density and hardness after sintering, with the best effects observed in 16-hour milled samples.
Article
Materials Science, Multidisciplinary
Wenxuan Wang, Yichen Liu, Yifan Xue, Ziqi Yin, Wen Lee, Zhi-Gang Chen, Lei Yang, Kunihito Koumoto, Jack Yang, Wenxian Li, Sean Li
Summary: Suppression of thermal conductivity through particle size reduction is commonly used to enhance the thermoelectric performance of nanostructured materials. This study successfully synthesized a novel structure of CCO material by combining high-energy ball milling and spark plasma sintering techniques, which showed high electrical conductivity and low thermal conductivity, resulting in a high zT value.
Article
Materials Science, Ceramics
B. Ranjithkumar, H. B. Ramalingam, E. Ranjith Kumar, Ch Srinivas, G. Magesh, C. Sharmila Rahale, Nashwa M. El-Metwaly, B. Chandar Shekar
Summary: In this study, a novel green synthesis method using honey and cow urine was employed to prepare zinc oxide nanoparticles, and various properties of the nanoparticles were analyzed. The results showed that zinc oxide nanoparticles assisted by honey demonstrated strong antibacterial activity compared to those prepared with cow urine.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Murli Kumar Manglam, Manoranjan Kar
Summary: Gd doped barium hexaferrite was synthesized using the sol-gel method to investigate its magnetic and MCE properties. The materials crystallize to hexagonal magnetoplumbite phase, with average particle size decreasing and magnetic parameters changing significantly with increasing Gd concentration. The study reveals higher saturation magnetization at lower temperatures and opens a window for exploring MCE on BHF based material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Manping Cheng, Guoyun Luo, Xianfeng Xiao, Lijun Song
Summary: This study investigated the effect of laser pulse period on the solidification structures of 2219 aluminum alloy through pulsed laser melting. The results revealed that the solidification mode changed from single unconstrained mode to alternating constrained and unconstrained modes as the pulse period increased. Different solidification modes resulted in different dendrite structures and secondary precipitates.
Article
Biotechnology & Applied Microbiology
Cao Shuang, Zhang Haixiang, Wang Xueman, Peng Miquan, Huang Renhua, Hong Wei, Fu Hailu, Chen Xiongbo, Lin Zejian
Summary: In this study, various CexCuTiO2 catalysts were synthesized using ice-melting and conventional coprecipitation methods for selective catalytic reduction (SCR) of NO with NH3. The Ce0.4CuTi-Ice catalyst showed excellent catalytic activity with high NOx conversion and N-2 selectivity. The ice-melting synthesis method resulted in catalysts with a large surface area, small crystallite sizes, and abundant active species, leading to enhanced catalytic performance.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Burak Demir, Dilara Derince, Tolga Dayioglu, Levent Koroglu, Erkul Karacaoglu, Veli Uz, Erhan Ayas
Summary: The study found that increasing doping content significantly enhanced the luminescence intensity of fluorapatite, while crystallite size had little effect on luminescence properties. Samples sintered with spark plasma sintering had the lowest emission intensity, while synthesized powders with the largest crystallite size exhibited higher emission intensity.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Isha Gupta, Pawan Kumar, Sitender Singh, Shri Bhagwan, Vinod Kumar, Devender Singh
Summary: Orthoaluminate perovskite-type YAlO3:xSm(3+) (x = 0.01 to 0.04 mol) nanocrystalline materials were successfully synthesized via solution combustion method. The synthesized materials exhibited good crystallinity and phase purity, and showed reddish-orange emission suitable for near visible ultraviolet (NUV) energized LED applications.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Materials Science, Multidisciplinary
Wen-Chao Hua, Ming-Qi Li, Yang-Long Guo, Guang-Tao Chai, Hao Liu, Yun Guo, Li Wang, Wang-Cheng Zhan
Summary: A series of Co3O4 catalysts prepared by different methods showed varying catalytic activity for the combustion of VCM emissions, with the Co-AP catalyst demonstrating the best performance without producing any chlorinated by-products.
Article
Nanoscience & Nanotechnology
Joonas Lehtonen, Pauli Lehto, Yanling Ge, Aapo Juselius, Simo-Pekka Hannula
Summary: Pulsed electric current sintering of gas atomized powder can achieve an equiatomic CrFeNiMn alloy, with ball milling of the starting powder leading to increased density and hardness, as well as decreased grain size of the sintered material. The decrease in grain size suppresses deformation twinning and promotes dislocation cell formation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Seonjin Jeong, Byeongnam Jo
Summary: This study identified mechanisms for enhancing the specific heat of KNO3-SiO2 nanofluids and acid-modified salts through the addition of nanoparticles and hydrogen peroxide solution, leading to increased specific heat in both solid and liquid phases.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Murli Kumar Manglam, Suman Kumari, Jyotirekha Mallick, Manoranjan Kar
Summary: This study explores the relationship between the crystal structure, morphology, and magnetic properties of barium hexaferrite and annealing temperature. The results show that the average crystallite size and particle size increase with annealing temperature, impacting the magnetic properties of the material.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Jing Li, Tongtong Xia, Jiacheng Xu, Chunle Zhang, Li Xu, Zuliang Wu, Shuiliang Yao
Summary: CeO2/gamma-Al2O3 catalysts with different crystallite sizes were synthesized, and their catalytic activities in the plasma catalytic oxidation reaction were evaluated. Smaller crystallite sizes showed higher activities, with more concentration of adsorbed oxygen species and higher ratio of Ce3+/(Ce3++Ce4+) on the surface. The oxidation capability of intermediates by-products enhanced with the decrease of crystallite size. This research provides a method to improve catalytic performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Dina V. Dudina, Tatyana F. Grigoreva, Evgeniya T. Devyatkina, Sergey V. Vosmerikov, Arina V. Ukhina, Vyacheslav V. Markushin, Nikolay Z. Lyakhov
Summary: Nearly fully dense metal-ceramic composites were synthesized using high-energy ball milling and liquid phase-assisted spark plasma sintering. The composites exhibited low residual porosity and interesting structural features with a Cu-rich network. The composition of the starting mixtures influenced the reinforcing phase composition and the Vickers hardness of the sintered composites.
CERAMICS INTERNATIONAL
(2022)
Review
Materials Science, Multidisciplinary
Dina Dudina, Konstantinos Georgarakis, Eugene A. Olevsky
Summary: This review discusses the application of field-assisted sintering in the powder metallurgy processing of aluminium and magnesium matrix composites, and presents the characteristics of materials obtained by spark plasma sintering, microwave sintering, and induction sintering.
INTERNATIONAL MATERIALS REVIEWS
(2023)
Article
Chemistry, Physical
Ilya Yakovlev, Serguei Tikhov, Evgeny Gerasimov, Tatiana Kardash, Konstantin Valeev, Aleksei Salanov, Yurii Chesalov, Olga Lapina, Oleg Lomovskii, Dina Dudina
Summary: The low specific surface area of metal powders produced by mechanical treatment often limits their use in various fields. This study explores the effect of hydrogen treatment on the structure of mechanically treated powders. A metal-oxide nanocomposite powder was successfully produced by mechanical alloying and high-pressure hydrogenation. The resulting nanocomposite shows potential for the synthesis of Fischer-Tropsch catalysts, due to its pulverization and an increase in specific sites.
Article
Materials Science, Multidisciplinary
V. S. Bystrov, E. V. Paramonova, A. V. Bystrova, L. A. Avakyan, N. V. Bulina
Summary: The structural and physical properties of hydroxyapatite with Sr/Ca substitutions were studied using Quantum ESPRESSO calculations. The lattice constants showed a similar increase after Sr/Ca substitutions compared to the experimental data. The changes in band gap and electron work function, as well as the polarization and piezoelectric properties, were estimated using quantum-chemical calculations.
Article
Chemistry, Physical
Svetlana V. Makarova, Natalia V. Bulina, Yuliya A. Golubeva, Lyubov S. Klyushova, Natalya B. Dumchenko, Svetlana S. Shatskaya, Arcady V. Ishchenko, Mikhail V. Khvostov, Dina V. Dudina
Summary: In this study, substituted hydroxyapatite containing zinc and silicon ions was synthesized using mechanochemical methods. The synthesized materials showed good structure when co-substituted with HA up to a certain concentration. In vitro experiments demonstrated high biocompatibility and low cytotoxicity of the synthesized material, making it suitable for medical applications such as bone tissue restoration and manufacture of biodegradable implants.
Article
Materials Science, Composites
Igor S. S. Batraev, Vladimir Yu. Ulianitsky, Alexandr A. A. Shtertser, Dina V. V. Dudina, Arina V. V. Ukhina
Summary: It is important to study the possibility of spraying binder-free carbides to improve the operating temperature and corrosion resistance of cermet coatings. In this work, chromium carbide powder was sprayed using a detonation gun, resulting in composite coatings with compositions depending on the gas mixture used. The phase compositions of the coatings were found to affect their mechanical properties and wear resistance.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Materials Science, Composites
Arina V. Ukhina, Dina V. Dudina, Maksim A. Esikov, Dmitrii A. Samoshkin, Sergei V. Stankus
Summary: In this study, carbide-forming metallic additives (W, Mo, Cr, Ti) were added to the copper matrix to enhance the wettability of diamond particles in copper-diamond composites. The samples were prepared using SPS and HP techniques at 920°C. The phase composition, microstructure, and thermal conductivity of the samples were investigated. The concentration of carbide-forming additive, sintering method, and type of metal introduced into the copper matrix were found to influence the thermal conductivity of copper-diamond composites. Among the additives, titanium exhibited the most significant improvement in wettability at the copper-diamond interface due to its higher solubility in copper and ability to diffuse through the copper matrix, resulting in closer contact at the interface.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Vyacheslav I. Kvashnin, Dina Dudina, Boris B. Bokhonov, Sergey A. Petrov, Arina V. Ukhina, Konstantinos Georgarakis, Francisco Gil Coury, Guilherme Yuuki Koga
Summary: In this study, a glassy Fe66Cr10Nb5B19 alloy and its crystalline counterpart were spark plasma sintered with aluminum at 570 degrees C to investigate the interfacial reactions in the systems. It was found that in the mixture containing the crystalline alloy, alpha-(Fe,Cr) and Fe2B reacted with aluminum forming the Fe-Al inter-metallic reaction products. The absence of alpha-(Fe,Cr) and Fe2B in the composite sintered from the glassy alloy was confirmed by Mo center dot ssbauer spectroscopy. Overall, the crystalline alloy showed higher reactivity towards aluminum than the glassy alloy, which can be attributed to the presence of alpha-(Fe,Cr), a Fe-rich phase.
Article
Materials Science, Multidisciplinary
Alexander Zh. Medvedev, Boris B. Bokhonov, Oleg S. Kiselev, Arina Ukhina, Dina Dudina, Alexander Y. Alekseev, Lyubov S. Adamenko, Maria Solomatina, Alexander M. Shestopalov
Summary: In this study, a melt-blown polypropylene tape was modified with silver nanoparticles using chemical metallization. The antibacterial, antifungal, and antiviral activities of the silver-modified materials were comprehensively tested for the first time. The results showed strong antibacterial and antifungal activities of the silver-modified materials, especially at high concentrations of silver, and they were found to be effective against the SARS-CoV-2 virus. The silver-modified fiber tape can be used in face mask manufacturing and as an antimicrobial and antiviral component in liquid and gaseous media filters.
Article
Chemistry, Physical
Tomila M. Vidyuk, Arina V. Ukhina, Alexander I. Gavrilov, Vladislav S. Shikalov, Alexander G. Anisimov, Oleg I. Lomovsky, Dina V. Dudina
Summary: This study synthesized tungsten carbides in a copper matrix using spark plasma sintering (SPS) and investigated the microstructure formation mechanisms of the composite materials. The influence of high-energy mechanical milling (MM) time and SPS temperature on tungsten carbide synthesis in an inert copper matrix was analyzed. The WC-W2C-Cu composite exhibited promising mechanical and functional properties including high hardness, good electrical conductivity, low porosity, low friction coefficient, and low specific wear rate.
Article
Materials Science, Multidisciplinary
Igor S. Batraev, Vladimir Yu. Ulianitsky, Alexandr A. Shtertser, Dina V. Dudina, Konstantin V. Ivanyuk, Vyacheslav I. Kvashnin, Yaroslav L. Lukyanov, Marina N. Samodurova, Evgeny A. Trofimov
Summary: The use of detonation spraying and spark plasma sintering for the formation of high-entropy alloy coatings is explored in this study. The powder-blend-based route allows for the introduction of additives and the subsequent SPS treatment produces alloys with a single-phase structure and low porosity.
Article
Crystallography
Marina V. Chaikina, Natalia V. Bulina, Igor Yu. Prosanov, Arcady V. Ishchenko
Summary: The biomineralization of apatite, a common phosphate mineral, has been studied extensively by scientists for over a century. The formation of marine sedimentary phosphate ores is still a topic of debate, as the concentrations of phosphates in water are too low for spontaneous precipitation. In this study, the phase equilibria of calcium phosphate and fluoride compounds were investigated, revealing the formation of different compounds in acidic and neutral/alkaline conditions.
Article
Materials Science, Composites
Dina V. Dudina, Vyacheslav I. Kvashnin, Boris B. Bokhonov, Mikhail A. Legan, Aleksey N. Novoselov, Yuliya N. Bespalko, Alberto Moreira Jorge Jr, Guilherme Y. Koga, Arina V. Ukhina, Alexandr A. Shtertser, Alexander G. Anisimov, Konstantinos Georgarakis
Summary: The microstructural features and mechanical properties of composites formed by spark plasma sintering of Al + 20 vol.% Fe and Al + 20 vol.% Fe66Cr10Nb5B19 mixtures composed of micrometer-sized particles were investigated. The pressure applied during sintering affected the thickness of reaction products formed between the iron particles and aluminum. The nature of reinforcement particles played a significant role in determining the hardness and compressive strength of the composites.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Physical
Vladimir S. Bystrov, Ekaterina V. Paramonova, Leon A. Avakyan, Natalya V. Eremina, Svetlana V. Makarova, Natalia V. Bulina
Summary: This study investigates the substitutions of magnesium and calcium in hydroxyapatite (HAP), the main mineral component of bones and teeth. The analysis reveals that the HAP-Mg unit cell parameters and volume decrease with increasing magnesium concentration. The positions of substitutions affect the distances between ions and result in changes in cell parameters and distortion. The electronic structure is found to be sensitive to the number and position of substitutions, offering the potential to adjust the optical properties of HAP-Mg material.
Article
Chemistry, Multidisciplinary
Dina V. Dudina, Vyacheslav I. Kvashnin, Alexander A. Matvienko, Anatoly A. Sidelnikov, Alexander I. Gavrilov, Arina V. Ukhina, Alberto Moreira Jorge, Konstantinos Georgarakis
Summary: Metallic-glass-reinforced metal matrix composites are a new type of composite materials, in which amorphous alloys act as reinforcement. This study investigated the morphology of the reaction products formed when Fe66Cr10Nb5B19 metallic glass particles interacted with aluminum. The composites were processed using spark plasma sintering, hot pressing, or a combination of both. The reaction products observed included dense layers covering the alloy cores, needles protruding from the shells, and needles and platelets distributed in the aluminum matrix. The role of the liquid phase in the structure formation and the occurrence of pores due to the Kirkendall effect were discussed.
CHEMISTRY-SWITZERLAND
(2023)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.