Article
Materials Science, Multidisciplinary
S. E. Shakib, A. Babakhani, M. Kashefi Torbati
Summary: This research investigates the deposition of various hard Ti-based coatings on steel substrates using the physical vapor deposition (PVD) technique. The graded coatings were evaluated through phase composition analysis and spectroscopy. Microstructural characterization was conducted using XPS, SEM, and TEM. The findings suggest that integrating a Ti interlayer with subsequent TiN/TICN layers can result in enhanced mechanical and tribological behavior. The elastic modulus, hardness, and yield strength of the coatings were determined by nanoindentation. The microscopic performance of the coatings was analyzed using load-displacement curves obtained from both nanoindentation and nano scratch tests.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Todor Batakliev, Evgeni Ivanov, Verislav Angelov, Giovanni Spinelli, Rumiana Kotsilkova
Summary: The nanomechanical properties of composite specimens based on polylactic acid (PLA) were investigated in this study, which has significant implications for the preparation and characterization of hybrid nanocomposites. Graphene nanoplatelets (GNPs) and multiwall carbon nanotubes (MWCNTs) were used as reinforcing nanoparticles, and a comprehensive analysis including nanoindentation, nanodynamic testing, and nanoscratch experiments was conducted to fully understand the nanoscale surface homogeneity and stress relaxation behavior of the nanocomposite specimens. The research approach contributed to the detection of new nanomechanical features as a function of the type of carbon nanofiller.
Article
Engineering, Mechanical
P. K. Farayibi, J. Hankel, F. van Gen Hassend, M. Bluem, S. Weber, A. Roettger
Summary: This study investigates the scratch resistance of a heat-treated stainless steel densified under vacuum and a nitrogen atmosphere. It is found that the nitrogen-sintered steel sample, deep cryogenically treated, exhibits better scratch resistance due to effective load transfer between the hard phases and the matrix.
Article
Materials Science, Ceramics
Fenglin Gu, Hongtu He, Laixi Sun, Fang Wang, Qiuju Zheng, Jiaxin Yu
Summary: The role of graphene on indentation and scratch properties of soda lime silicate (SLS) glass is investigated in this study. It is found that graphene-coated glass has higher nanohardness and reduced modulus, as well as improved nanoscratch resistance. Furthermore, graphene can reduce subsurface damage and increase Vickers hardness and indentation fracture toughness of the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Green & Sustainable Science & Technology
Hanzhou Ye, Bright Asante, Goran Schmidt, Andreas Krause, Yang Zhang, Zhiming Yu
Summary: The interaction between geopolymer and wood cell wall in geopolymer-wood composites was investigated using SEM-EDS, UMSP, nanoindentation, and nanoscratch. It was found that lignin may migrate from the wood cell wall to the surface of the geopolymer and contribute to geopolymer production without damaging the wood cell wall. Geopolymer mineralized and hardened the surfaces of wood cell walls, and the width of the interaction region was approximately 7.65 & mu;m depending on the friction coefficients.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Metallurgy & Metallurgical Engineering
Hamed Jamshidi Aval
Summary: The application of AA6061 aluminum alloy matrix composite reinforced by copper particles to AA1050 aluminum substrate using a friction surfacing process was studied. The results showed that using T6 treated consumable rod and increasing the mass fraction of copper powder led to higher temperature during friction surfacing and smaller grain size of the coatings. Increasing the mass fraction of copper powder also improved the wear resistance of the coatings. Using a T6 rod and 20 wt.% copper resulted in higher shear strength, hardness, and wear resistance compared to using a solution-treated rod.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Chemistry, Physical
Byeonghwa Goh, Joonmyung Choi
Summary: This work investigates the subsurface mechanical behavior of a diamond-structured nanocarbon particle and a copper substrate at nanocontact using molecular dynamic simulations. It analyzes the bidirectional distribution of deformation energy and suggests a methodology for dealing with nanoscale contacts in classical mechanics of materials.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Tuong Ly Kiet Dao, Anh Kiet Tieu, Bach Hoang Tran, Sang The Pham
Summary: In this study, it was found that five out of eight LDHs could induce hierarchical protective tribofilms, reducing wear and friction loss. Co-based tribofilms showed the best antiwear performance. The mechanical properties of different tribofilms were also demonstrated. The study provides insights into the tribochemical and lubrication mechanisms between LDHs and sliding surfaces.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Coatings & Films
Qingkai Fan, Chao Chen, Chenglei Fan, Zeng Liu, Xiaoyu Cai, Sanbao Lin, Chunli Yang
Summary: This study examines the impact of ultrasonic treatment on AlCoCuFeNi HEA coatings and finds that ultrasonic treatment can enhance hardness and corrosion resistance, as well as suppress segregation.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Applied
Hamzah Bakhti, Thomas Weyrich, Martha Es-Souni, Ayoub Laghrissi, Mohammed Es-Souni
Summary: In this study, hard-anodized aluminum was used as a substrate to support a polymeric anti-biofouling coating based on sulfobetaine methacrylate (pSBMA). The coating demonstrated excellent anti-biofouling properties, with elastic modulus and hardness measurements obtained under wet and dry conditions. The scratch resistance of the coating was also investigated, and finite element models were proposed to analyze stress and strain distributions on the coating surface.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Nanoscience & Nanotechnology
Qingkai Fan, Chao Chen, Chenglei Fan, Zeng Liu, Xiaoyu Cai, Sanbao Lin, Chunli Yang
Summary: Through ultrasonic treatment, the average grain diameter of AlCoCrFeNi HEA coatings is significantly reduced, the microhardness is increased, and the corrosion performance is improved, mainly due to the increased segregation of Cr at grain boundaries.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Metallurgy & Metallurgical Engineering
Bal Mukund Mishra, Supriyo Roy
Summary: In recent years, researchers have been using nanoindentation and finite element simulation to estimate the stress-strain behavior of thin-film coatings. Advances in machine learning algorithms and artificial intelligence have made it possible to extract the properties of a material in a more systematic way. The aim of this study is to find the optimum values of the constants of power-law plastic behavior for thin-film alloy coatings.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2022)
Article
Chemistry, Applied
Liqian Shi, Shanshan Chen, M. Babar Shahzad, Zhiyong Wei, Bing Leng
Summary: Surface modification is crucial for improving the corrosion resistance of magnesium alloys. This paper proposes a reliable protective coating, PBAT, with high elongation at break, for biodegradable magnesium alloy stents. The PBAT-F coating shows superior corrosion resistance, barrier performance, mechanical properties, hemocompatibility, and cell proliferation rates compared to PDLLA. PBAT is an excellent coating material for vascular stents, while PBAT composite coating has potential as a protective coating for magnesium stents.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Automation & Control Systems
Igor Batraev, Dina V. Dudina, Denis K. Rybin, Vladimir Yu. Ulianitsky, Alexey Sova, Ahmad Ostovari Moghaddam, Maria Doubenskaia, Evgeny Trofimov, Marina Samodurova
Summary: This work investigates the feasibility of a new two-stage approach for depositing thick high-entropy alloy coatings. The approach involves detonation spraying of low-entropy metal powder blends to form a metal composite coating, followed by heat treatment to promote the synthesis of high-entropy phases. Experimental results show that this method allows for the formation of uniform metal composite coatings and enables element diffusion and the formation of high-entropy alloys through heat treatment.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Hongtu He, Zhe Chen, Yen-Ting Lin, Seung Ho Hahn, Jiaxin Yu, Adri C. T. van Duin, Tobias D. Gokus, Slava Rotkin, Seong H. Kim
Summary: Using nanoscale infrared spectroscopy and reactive molecular dynamics simulations, the subsurface structural changes of silica upon nanoindentation and nanoscratch are investigated, revealing chemical plasticity at the sub-Angstrom level.
Article
Metallurgy & Metallurgical Engineering
Bal Mukund Mishra, Supriyo Roy
Summary: In recent years, researchers have been using nanoindentation and finite element simulation to estimate the stress-strain behavior of thin-film coatings. Advances in machine learning algorithms and artificial intelligence have made it possible to extract the properties of a material in a more systematic way. The aim of this study is to find the optimum values of the constants of power-law plastic behavior for thin-film alloy coatings.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2022)
Review
Chemistry, Multidisciplinary
S. Roy
MATERIALS TODAY CHEMISTRY
(2020)
Proceedings Paper
Automation & Control Systems
Supriyo Roy, Prasanta Sahoo
2ND INTERNATIONAL CONFERENCE ON INNOVATIONS IN AUTOMATION AND MECHATRONICS ENGINEERING, ICIAME 2014
(2014)
Article
Materials Science, Multidisciplinary
Supriyo Roy, Prasanta Sahoo
INTERNATIONAL JOURNAL OF MECHANICAL AND MATERIALS ENGINEERING
(2014)
Article
Electrochemistry
Supriyo Roy, Prasanta Sahoo
PORTUGALIAE ELECTROCHIMICA ACTA
(2012)
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)
