Article
Engineering, Chemical
G. Mobarhan, A. Zolriasatein, M. Ghahari, M. Jalili, M. Rostami
Summary: This study synthesized spherical MoS2 nanoparticles with multiple nanosheets through the hydrothermal method and investigated the effect of nanoparticle concentration on wear properties. The results showed that nanoparticles with a thickness of 10 nm exhibited the best wear performance, reducing wear width and friction coefficient by about 50% at a concentration of only 0.05 wt-%.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xiaozhen Wang, Chencan Li, Kuiliang Gong, Xinhu Wu
Summary: There is an urgent need to develop high-performance tribological additives for water-based lubricants using sustainable methods. In this study, dextran-modified molybdenum sulfide nanoparticles (MoS2-dex NPs) were synthesized through ball-milling under a nitrogen atmosphere. The addition of MoS2-dex in glycerol solution resulted in significant reductions in friction coefficient and wear, and even better tribological performance was achieved when MoS2-dex was combined with graphene oxide (GO). The lubrication mechanism was investigated through FIB-STEM/EDS and XPS, revealing the formation of adsorbed film and tribofilm on the steel substrate, which contributed to the excellent friction reduction and antiwear performances of MoS2-dex and GO in glycerol solution.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Mohamed Zoubair Saidi, Chaouki El Moujahid, Andreea Pasc, Nadia Canilho, Clara Delgado-Sanchez, Alain Celzard, Vanessa Fierro, Richard Kouitat-Njiwa, Tarik Chafik
Summary: Researchers have successfully developed flower-shaped MoS2 nano-additives that enhance lubrication and wear resistance in wind turbine engine oil, reducing friction and wear, improving efficiency, and prolonging service life of mechanical devices.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Cong Liu, Yanguo Yin, Congmin Li, Ming Xu, Rongrong Li, Qi Chen
Summary: Nano Bi particles were chemically modified to improve their dispersion and stability. The addition of modified nano Bi particles significantly improved the tribological properties of liquid paraffin oil.
Article
Materials Science, Multidisciplinary
Armin Seynstahl, Sebastian Krauss, Erik Bitzek, Bernd Meyer, Benoit Merle, Stephan Tremmel
Summary: Depositing MoS2 coatings for industrial applications involves rotating the samples during the PVD magnetron sputtering process, with excessive substrate rotation introducing porosity that affects mechanical properties and wear behavior.
Article
Materials Science, Multidisciplinary
Nurul Athirah Ismail, Zaira Zaman Chowdhury, Mohd Rafie Johan, Nurin Wahidah Mohd Zulkifli
Summary: AGO-C(n)/MoS2 composites were synthesized using a facile hydrothermal method and investigated for their tribological properties as lubricant additives in Group III petroleum-based oil. Results showed that the composites significantly improved friction reduction and antiwear properties of the oil, with the 1:1 mass ratio AGO-C14/MoS2 composite exhibiting the best performance. This enhanced tribological behavior was attributed to the synergistic effect and unique layered structure of AGO-C(n) and MoS2.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Engineering, Mechanical
Meirong Yi, Jiaxun Qiu, Wenhu Xu
Summary: This study synthesized ultra-thin MoS2 nanosheets through a chemical method and investigated their friction-reducing and antiwear capabilities in formulated engine oil. The research also studied the tribofilm formation, interface structure, and friction mechanism through surface characterization and chemical analysis. This contributes to a better understanding of the lubrication mechanism of MoS2 nanoparticles in formulated engine oil.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Polymer Science
Oxana V. Kharissova, Vladimir A. Irkha, Ekaterina G. Drogan, Alena I. Zagrebelnaya, Victoria E. Burlakova, Igor N. Shcherbakov, Leonid D. Popov, Igor E. Uflyand
Summary: A method for obtaining copper-containing tribological nanomaterials was developed by thermolysis of copper(II) laurate at 300 degrees C. The composition and crystallite size of the nanoparticles depend on thermolysis time. The tribological characteristics of the nanomaterials in liquid paraffin show optimal friction properties at specific concentrations and load levels.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Engineering, Chemical
Oxana V. Kharissova, Vladimir A. Irkha, Ekaterina G. Drogan, Victoria E. Burlakova, Vladimir A. Zhinzhilo, Igor E. Uflyand
Summary: A facile method for obtaining copper-containing nanomaterials by thermolysis of copper cinnamate complex with 4 '-phenyl-2,2 ':6 ',2 ''-terpyridine at 300 degrees C was developed. The obtained nanomaterials were characterized and their tribological behavior as additives to lubricant was studied, showing the lowest friction coefficient at optimum concentration. The mechanism of friction in the presence of the studied lubricant compositions was discussed.
Review
Chemistry, Physical
Nora Nyholm, Nuria Espallargas
Summary: Carbon nanostructures have been proposed as potential candidates for a new generation of lubricant additives due to their excellent properties. This review surveys the literature on carbon nanostructures as lubricant additives and identifies dimensionality, structural integrity, and chemical interactions as important properties governing their tribological behavior.
Article
Engineering, Mechanical
Xiaozhi Zhang, Yaojie Yan, Peng Wang, Tingting Zhang, Shujuan Liu, Qian Ye, Feng Zhou
Summary: The thiadiazole functionalized covalent organic frameworks were synthesized using polydopamine as a connection layer. The fluorine-containing COF-F was prepared through solvothermal reaction and then coated with a PDA layer. The anti-wear agent thiadiazole dimer covalently bonded with PDA to obtain thiadiazole functionalized COFs (DTD@COF-F), which exhibited good tribological properties as oil-based lubricant additives, including a low and stable friction coefficient (0.104) and a 67.8% reduction in wear volume compared to the base oil 500SN. The excellent lubrication performance is attributed to the robust protective tribo-film and the easy absorption of the anti-wear thiadiazole molecule functionalized COFs onto the friction pairs.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Hikmet Cicek, Ozan Can Akar, Ihsan Efeoglu
Summary: TiNi/MoS2 functional solid lubricant coatings were deposited on 52100 and D2 steels using a closed field unbalanced magnetron sputtering system. The coatings showed high adhesion and multipass scratch resistance, with better performance observed on the 52100 steel.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Mechanical
J. Umer, N. J. Morris, R. Rahmani, H. Rahnejat, S. Howell-Smith, S. Balakrishnan
Summary: This paper presents an experimental case study of a new generation of fully formulated engine lubricants, focusing on the key interactions and frictional behavior of the dispersant and friction modifiers at different operating temperatures.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Mechanical
Nadiege Nomede-Martyr, Yves Bercion, Bilas Philippe, Marc Dubois, Henry Joseph, Thomas Philippe
Summary: This study focuses on the influence of local moringa oil on the performance of lubricants made from a blend of dodecane and carbon nanofibers at ambient temperature. The results indicate that the addition of a small amount of moringa oil can significantly reduce friction, with better results observed in blends containing fluorinated carbon fibers.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Multidisciplinary
Lucie Lindenbeck, Bjoern B. Beele, Mohammad Morsali, Serhiy Budnyk, Marcella Frauscher, Jianhong Chen, Mika H. Sipponen, Adam Slabon, Bruno V. M. Rodrigues
Summary: For a long time, lignin has been considered as a low-value waste product, but recently high-value applications have been explored, such as the preparation of hybrid materials with inorganic components. This study presents a novel and green material based on the combination of hydroxymethylated lignin nanoparticles (HLNPs) with molybdenum disulfide (MoS2) nanoflowers. The MoS2-HLNPs hybrid showed superior tribological performances compared to HLNPs alone, suggesting a new class of biobased lubricants.
Article
Engineering, Electrical & Electronic
Cristobal Alessandri, Sara Fathipour, Huamin Li, Iljo Kwak, Andrew Kummel, Maja Remskar, Alan C. Seabaugh
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2017)
Article
Engineering, Electrical & Electronic
G. Ulisse, C. Ciceroni, A. D. Carlo, F. Brunetti, J. Jelenc, S. Muhammad, A. Varlec, M. Remskar
MICROELECTRONIC ENGINEERING
(2017)
Article
Engineering, Mechanical
A. Tomala, M. Rodriguez Ripoll, C. Gabler, M. Remskar, M. Kalin
TRIBOLOGY INTERNATIONAL
(2017)
Article
Environmental Sciences
Andreja Lang, Maja Ovsenik, Ivan Verdenik, Maja Remskar, Cedomir Oblak
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE
(2018)
Article
Engineering, Chemical
Sule Erten Ela, Maja Remskar, Gozde Yurdabak Karaca, Lutfi Oksuz, Emre Uygun, Aysegul Uygun Oksuz
PARTICULATE SCIENCE AND TECHNOLOGY
(2019)
Article
Environmental Sciences
Bojana Visic, Eva Kranjc, Luka Pirker, Urska Bacnik, Gasper Tavcar, Sreco Skapin, Maja Remskar
AIR QUALITY ATMOSPHERE AND HEALTH
(2018)
Article
Chemistry, Multidisciplinary
Eva Kranjc, Darja Mazej, Marjana Regvar, Damjana Drobne, Maja Remskar
ENVIRONMENTAL SCIENCE-NANO
(2018)
Article
Physics, Applied
D. R. Kazanov, A. V. Poshakinskiy, V. Yu. Davydov, A. N. Smirnov, I. A. Eliseyev, D. A. Kirilenko, M. Remskar, S. Fathipour, A. Mintairov, A. Seabaugh, B. Gil, T. V. Shubina
APPLIED PHYSICS LETTERS
(2018)
Article
Chemistry, Multidisciplinary
Manel Rodriguez Ripoll, Agnieszka Tomala, Christoph Gabler, Goran Drazic, Luka Pirker, Maja Remskar
Article
Physics, Multidisciplinary
Tatiana V. Shubina, Maja Remskar, Valery Yu. Davydov, Kirill G. Belyaev, Alexey A. Toropov, Bernard Gil
ANNALEN DER PHYSIK
(2019)
Article
Spectroscopy
Muhammad Saqib, Janez Jelenc, Luka Pirker, Sreco D. Skapin, Lorenzo De Pietro, Urs Ramsperger, Alexandr Knapek, Ilona Muellerova, Maja Rerriskar
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
(2020)
Article
Engineering, Manufacturing
Manel Rodriguez Ripoll, Agnieszka Maria Tomala, Vladimir Totolin, Maja Remskar
JOURNAL OF MANUFACTURING PROCESSES
(2019)
Article
Materials Science, Multidisciplinary
Simon Reinhardt, Luka Pirker, Christian Baeuml, Maja Remskar, Andreas K. Huettel
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2019)
Article
Chemistry, Physical
Gregor Filipic, Luka Pirker, Anja Pogacnik Krajnc, Marjan Jeselnik, Maja Remskar
Summary: Pollutants and infectious diseases can spread through air, but respiratory masks can reduce inhalation and protect against airborne diseases. However, the single-use nature of masks has led to a significant increase in non-recyclable waste, polluting the environment with plastic. Researchers investigated the filtration efficiency of aerosols using natural materials enhanced with electrospun polymer fibers, achieving up to 80% increase in efficiency. By optimizing the thickness of the polymer fibers, the amount of plastic used can be minimized while maintaining high filtration efficiency.
Article
Energy & Fuels
Sule Erten-Ela, Melek Kiristi, Ana Varlec, Ferhat Bozduman, Maja Remskar, Lutfi Oksuz, Aysegul Uygun Oksuz
INTERNATIONAL JOURNAL OF SUSTAINABLE ENERGY
(2018)
Article
Engineering, Mechanical
Yankui Song, Ke Xiao, Guo Xiang
Summary: The novelty of this study lies in constructing an Entropy-based wear and fluid-solid-thermal (FST) coupled model for journal bearings, and revealing the transient interaction behavior between wear evolution and FST evolution during repeated starting and stopping. The wear rate is measured experimentally, and the contact temperature, friction coefficient and normal contact force are obtained from the validated FST model. Wear tests and numerical calculations are conducted to validate the predicted wear rate and investigate the time-varying wear and FST evolution of journal bearings.
Article
Engineering, Mechanical
Xin-long Liu, Xin Guan, Yuan Zhong, Qian Xiao, Yong Cao, Wu-lue Zhang, Song Zhang, Yi-ting Zheng, Ming-sheng Gao, Dao-yun Chen, Wen-bin Yang
Summary: Gaps in the conductor rail joints of intercity trains have an impact on current transmission and the wear of carbon skateboards. These gaps decrease the coefficient of friction, increase electrical contact resistance, and affect the wear rate of carbon skateboards.
Article
Engineering, Mechanical
Yuhang Wu, Conglin Dong, Xiuqin Bai, Chengqing Yuan
Summary: The study developed a new composite material by incorporating hexagonal boron nitride (h-BN) particles into a thermoplastic polyurethane (TPU) matrix, which exhibited excellent self-lubricating properties and reduced frictional excitation forces. The addition of h-BN particles effectively reduced the coefficient of friction, decreased fluctuation amplitude, enhanced wear resistance, and attenuated vibration behaviors.
Article
Engineering, Mechanical
Tiancheng Ouyang, Xiuyang Sun, Wentao Tang, Yinxuan Li, Zhi Qun Tian, Yanzhou Li
Summary: By adding nitrogen-doped graphene and C60 nanoparticles to the lubricant, a highly efficient nano-lubricant with vibration and noise reduction properties is synthesized.
Article
Engineering, Mechanical
Xin Zhuo, Jun Cao, Haibo Huang, Li Liu, Xinkun Suo, Peiqing Ye, Zeshan Abbas
Summary: A polymer coating prepared by liquid spraying technology on the surface of 20CrMo steel demonstrates good tribological and anti-cavitation erosive properties. It can effectively replace CuPb24Sn copper alloy in valve plates for pumps under different lubrication conditions. The coating exhibits adhesive wear and reduces frictional loss, and mainly shows abrasive wear under complex working conditions. Its lipophilicity, high hardness to elastic modulus ratio, and corrosion resistance are the main influencing factors for its performance.
Article
Engineering, Mechanical
Md. Aminul Islam, Jiaren (Jimmy) Jiang, Yongsong Xie
Summary: Erosion-corrosion is a major factor in material loss and reduced useful life of hydro-transport equipment. This study evaluates the erosion-corrosion characteristics of different materials and finds that matrix wear affects the degradation of carbides. Sufficient wear and corrosion resistance in the surrounding matrix are important for good erosion-corrosion resistance.
Article
Engineering, Mechanical
Andre Dubois, Oussama Filali, Laurent Dubar
Summary: This study investigates the effect of surface roughness, contact pressure, and lubrication on the onset of galling in aluminum 6082-T6 using a pin-on-plate tribometer. The experimental results show that the roughness and lubricants play a significant role in preventing galling.
Article
Engineering, Mechanical
Jizhan Wu, Peitang Wei, Guoqiang Liu, Difa Chen, Xiuhua Zhang, Taimin Chen, Huaiju Liu
Summary: This study conducted a comprehensive evaluation of the DLC coating treatment on the loading capacity of gears and characterized the surface features and fatigue performance. The results demonstrate that DLC coating significantly improves the hardness and surface residual compressive stress of the gears, as well as enhances their contact fatigue performance.
Article
Engineering, Mechanical
Yangping Liu, Hwaran Lee, Annsley Mace, Jeremy L. Gilbert
Summary: An AFM-based single asperity tribology method was used to investigate the wear performance of carbides and base metal matrix in high carbon CoCrMo alloy. The wear behavior of the two types of carbides was stress-dependent and influenced by chemical composition. Cr-rich carbides exhibited higher wear resistance compared to Mo-rich carbides.
Article
Engineering, Mechanical
Zdenek Riha, Michal Zelenak, Akash Nag, Jakub Poloprudsky, Tomas Kruml, Sergej Hloch
Summary: This study investigates the erosion performances of a high-speed modulated jet (MWJ) and continuous water jet (CWJ). By comparing different nozzles and water jet powers, the effects of modulated and continuous jets on aluminum alloy were studied. The results show that under certain conditions, modulated jet can create deeper and sharper grooves while reducing the impact of lateral flow.
Article
Engineering, Mechanical
Chunyu Yu, Weipu Li, Yang Guo, Xianbin Sun, Fanli Hong, Ning Sun, Qinghai Zhang
Summary: This study explores the relationship between the wear rate of train brake pads and its features, and proposes a method for predicting the wear rate suitable for small sample data. Grey relational analysis and Pearson correlation analysis are used to determine the preferred features that affect the wear rate, and a BOA-BP model is established for prediction. The results show that BOA-BP exhibits better advantages in prediction with small samples.
Article
Engineering, Mechanical
Shan Yin, Xin Zhao, Shuangchao Huang, Zefeng Wen, Xuesong Jin
Summary: This study simulated the rolling contact of a driving wheelset over tangent and curved tracks at a speed up to 500 km/h using an explicit finite element approach to derive creep curves. The comparison between quasi-steady curves and transient curves in the presence of rail corrugation helped to identify cases where traditional theories are inapplicable and where transient effects must be considered. Additionally, the study further analyzed the influence of middle/high-frequency vibrations in the presence of rail corrugation.
Article
Engineering, Mechanical
Jiyao Zhang, Yuanlie Yu, Junlei Tang, Yingying Wang, Honggang Sun, Kaikai Song, Jianhong Gong, Pingping Liu, Xiaoming Liu, Lina Hu, Parthiban Ramasamy, Juergen Eckert
Summary: The influence of high-carbon addition on the microstructure, hardness, and wear behavior of CoCrNi alloy was investigated. It was found that the addition of carbon resulted in the formation of carbide particles, enhancing the hardness and improving the wear resistance. Fracture and detachment of hard carbides during friction introduced additional abrasive particles, transitioning the wear mechanism from adhesive-dominated to abrasive-dominated.
Article
Engineering, Mechanical
Yanfei Liu, Shengtao Yu, Ruize Zhang, Xiangyu Ge, Wenzhong Wang
Summary: This study reports the tribological behavior of nanodiamond plate (NDPL) as a nanoadditive for the first time and compares it with nanodiamond particles (NDPA). The results show that NDPL provides better lubrication performance at higher concentrations, and the sliding between NDPLs and the structural transformation from sp3 to sp2 carbon play a crucial role in lubrication and wear resistance.
