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Papers
61,005 resultsShowing papers similar to Modification of Frictional Surfaces of Bearings by Addition of Nanoparticle Compositions to Lubricants
ClearDynamic Processes of Substructural Rearrangement under Friction of Carbon Steel
This study examined how heat treatment affects the friction and wear properties of medium carbon steel, linking material microstructure to tribological performance. The research is focused on materials engineering with limited direct relevance to microplastic pollution or human health.
Tribo-driven evolution of specific nano-heterostructures to achieve exceptional wear resistance in composites
This materials science study investigated wear behavior in a NiAlTa/cBN composite produced by spark plasma sintering, finding that tribologically driven formation of specific nano-heterostructures in the wear surface produced an extremely low wear rate and reduced friction coefficient.
Tribological Aspects of Rolling Bearing Failures
This review covers the tribology (friction and wear science) of rolling element bearings, discussing failure modes and how material fatigue drives bearing lifespan predictions. This mechanical engineering study has no relevance to microplastics or environmental health.
Multiscale Modeling of Friction Coefficients: A Review from Nanocontacts to Macroscopic Sliding
This review examines multiscale modeling approaches for friction coefficients from atomic nanocontacts to macroscopic sliding behavior, finding that classical Coulomb and Amontons laws underrepresent the complexity of friction phenomena revealed by modern computational and experimental research.
Vastness of Tribology and its Contribution for a Sustainable Development
This review organises the multidisciplinary field of tribology into six branches covering fundamental tribology, materials and lubricants, micro and nanotribology, industrial tribology, biotribology, and emerging frontiers, and examines its contributions to friction and wear reduction for sustainable development.
Analysis of the Subsurface Volume of Differently Finished AISI 52100 by Cyclic Indentation and X‐Ray Diffraction
This study analyzed how different surface finishing processes affect fatigue behavior in roller bearing steel, finding that surface roughness and residual stress influence component lifetime. The research is focused on materials engineering and has limited direct relevance to microplastic pollution.
New Methodology to Evaluate the Rolling Contact Fatigue Performance of Bearing Steels With Surface Dents: Application to 32CrMoV13 (Nitrided) and M50 Steels
This engineering study developed a method to evaluate how surface dents affect rolling contact fatigue in bearing steels, using indentation testing and two-disk fatigue experiments to compare different steel alloys. This is an industrial engineering study with no relevance to environmental microplastics.
Engineering Various Morphologies of 2 Dimensional Nanomaterials for Enhanced Nanolubricant Efficiency: A Review
This review examines how two-dimensional nanomaterials of various morphologies—sheets, ribbons, and quantum dots—can be used as lubricant additives to reduce friction and wear, with implications for designing nanomaterial-based systems that minimize environmental release of engineered particles.
Material Response to Rolling Contact Loading
This materials science study investigates how rolling contact in ball bearings causes microplastic deformation in steel, leading to crystallographic texture changes, residual stresses, and eventual fatigue failure. The term 'microplastic' in this paper refers to small-scale plastic deformation in metals and has no connection to environmental plastic pollution.
The effects of oil-quenching and over-tempering heat treatments on the dry sliding wear behaviours of 25CrMo4 steel
Researchers tested how different heat treatments affect the wear resistance of 25CrMo4 steel used in automotive parts, finding that oil-quenching and over-tempering significantly reduced material wear loss compared to untreated steel, even when hardness slightly decreased — important for extending the life of industrial components.
Multifactorial criterion evaluation of lubrication efficiency and wear resistance of friction units operating under extreme operating conditions
Researchers proposed a multifactorial criterion-based approach to optimising lubricant formulations for friction units operating under extreme conditions, incorporating rheological properties and chemical composition to sustain micro-elastohydrodynamic lubrication and reduce wear. The framework integrates viscosity class selection, plasticity assessment, and lubrication mode criteria to prevent lubrication layer breakdown and extend component service life.
On the Formation and Characterization of Nanoplastics During Surface Wear Processes
Researchers characterized nanoplastic particle generation during surface wear processes, finding that mechanical abrasion of bulk plastic materials produces a broad size distribution of particles including sub-100 nm fragments, with surface wear rate depending on polymer hardness and contact conditions.
Theoretical Study of the Friction Coefficient in the M-B Model
This paper derived new mathematical expressions for friction coefficients in a fractal-based surface contact model, addressing how microscopic surface roughness affects macroscopic friction behavior. The model improves predictions of friction for engineering applications where surface texture matters. Better friction models contribute to more durable and efficient mechanical systems.
Nanofluids Minimal Quantity Lubrication Machining: From Mechanisms to Application
This review examines nanofluid minimum quantity lubrication as a sustainable machining technique that reduces environmental impact while maintaining manufacturing precision. The study summarizes the mechanisms and performance benefits of this approach across different materials, aiming to bridge the gap between laboratory research and factory-scale implementation.
A 3D Finite Element Model of Rolling Contact Fatigue for Evolved Material Response and Residual Stress Estimation
This engineering study developed a 3D finite element model for rolling contact fatigue in steel bearings to predict residual stress and material hardening. It is a mechanical engineering paper not related to environmental microplastics.
Investigation of the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy
This engineering study found that hybrid nanofluids combining aluminum oxide and zinc oxide nanoparticles provided better lubrication than single-metal nanofluids when machining titanium alloys. The optimal 2:1 ratio of Al2O3 to ZnO reduced friction by up to 22% compared to a base solution.
Physical and Mechanical Properties of Modified Continuous Basalt Fiber for the Production of Polymer Composite Materials: Experimental Study
This engineering study tested a nanomodifier additive in lubricant formulations used during the production of composite polymer fibers. Adding the modifier at optimal concentrations improved the physical and mechanical properties of the resulting materials by 12-25%.
Tribo–Driven Evolution of Specific Nano–heterostructures to Achieve Exceptional Wear Resistance in Composites
Researchers developed a NiAlTa/cBN composite via spark plasma sintering and investigated how tribological stress and temperature induce specific nano-heterostructures that control wear resistance. At room temperature, an amorphous tribo-layer formed through plastic deformation and oxidation produced an extremely low wear rate (10-7 mm3/N/m) and a friction coefficient of 0.252, while at high temperatures, nanocrystalline subsurface layers and FCC-to-HCP phase transitions altered wear mechanisms, demonstrating that tribo-induced structural evolution is key to exceptional composite wear performance.
Time-Dependent Contact Behaviour of ZDDP-Derived Tribofilms: A Viscoelastic Layered Model Approach
Researchers studied how protective lubricant films (called tribofilms) formed by the common engine oil additive ZDDP behave under pressure over time, finding that these films act like a layered viscoelastic material — with mechanical properties that change depending on load duration — which matters for predicting how well engine components resist wear.
Evaluation of Antioxidant Properties and Molecular Design of Lubricant Antioxidants Based on QSPR Model
Not relevant to microplastics — this study uses computational modeling (QSPR) to predict and design better antioxidant additives for lubricating oils, a materials chemistry application unrelated to microplastic pollution.
Nanoscale adhesion and friction behavior of individual nanoplastic particles under varying environmental conditions
Researchers used atomic force microscopy with individual nanoplastic particles attached to the probe tip to measure adhesion and friction at the nanoscale on different surfaces. The study found that adhesion and friction varied significantly depending on the substrate type and environmental conditions such as humidity and aqueous versus dry settings. Mechanically degraded nanoplastics showed slightly different adhesion and friction compared to pristine particles, indicating that environmental weathering alters how nanoplastics interact with surfaces.
Special Issue “Functional Nanomaterials: Structures, Compositions and Various Applications”
Researchers presented a special issue overview connecting fundamental structure-property relationships of functional nanomaterials to their performance in real-world technological devices and processes across a range of application domains.
Tribological Performance of Short Fibers Reinforced Thermoplastic Polyurethane Composite Materials Under Water-Lubricated Condition
This study evaluated the tribological performance of short fiber-reinforced thermoplastic polyurethane composites under water-lubricated conditions relevant to ship propulsion bearing systems. Ultra-high-molecular-weight polyethylene and carbon fibers significantly reduced friction and wear, improving bearing performance under low-speed, heavy-load conditions.
Direct Correlations among the Grain Size, Texture, and Indentation Behavior of Nanocrystalline Nickel Coatings
Researchers studied how grain size affects the mechanical properties of nanocrystalline nickel coatings. This materials science paper is unrelated to environmental microplastics.