OOIR: Observatory of International Research

Papers

(The H4-Index of Friction is 34. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Friction will be published monthly from 2022	163
Probing the intriguing frictional behavior of hydrogels during alternative sliding velocity cycles	138
Macro-superlubricity in sputtered MoS2-based films by decreasing edge pinning effect	129
Fabrication of PMMA nanocomposite biomaterials reinforced by cellulose nanocrystals extracted from rice husk for dental applications	124
A robust membrane with dual superlyophobicity for solving water-caused lubricant deterioration and water contamination	109
Modeling and analysis for material removal and surface roughness in fluid jet polishing of optical glass	99
Electrostatic charging at the solid–liquid interface: Strategies for liquid flow sensing	96
An overview of functional biolubricants	79
Bioinspired self-adhesive coating for surface functionalization of medical devices with lubrication and antibacterial properties	78
Environmental limitations of PTFE for ultralow friction composites and alternatives to using liquid lubricants	76
A new method to solve the Reynolds equation including mass-conserving cavitation by physics informed neural networks (PINNs) with both soft and hard constraints	74
Predicting the coefficient of friction in a sliding contact by applying machine learning to acoustic emission data	73
Stochastic uncertain lubrication in gear transmission subjected to tribodynamic loading	63
Status and prospects of tribology in the Republic of Korea	63
Electrically promoted tribological changes at diamond-like carbon/steel interface under lubrication conditions	59
Carbon-based solid lubricants: An overview	53
Academic and industrial tribology research in India—Current status	52
Oxygen-induced contact evolution enables friction reduction in MoS ₂/Ag composite films	52
Modelling acoustic emission generated by microslip friction between bolted joint interfaces	49
Unlocking wear resistance in an ultrastrong dual-phase high-entropy alloy by interface-constrained deformation of brittle Laves phases	49
Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication	45
Effect of superficial collagen fibre orientation of articular cartilage on its anisotropic tribological behaviour	45
Roughness induced variation as a new mechanism for hydrodynamic lubrication between parallel surfaces	41
Electron transfer dominated triboelectrification at the hydrophobic/slippery substrate—water interfaces	40
Effect of functional groups on tribological properties of lubricants and mechanism investigation	40

Ultralow friction PTFE/PEEK heterolayer: A new solid lubrication approach toward simplicity	39
Characterization of ultrafine particles from hardfacing coated brake rotors	38
Subsurface deformation mechanism and the interplay relationship between strength-ductility and fretting wear resistance during fretting of a high-strength titanium alloy	37
Dual in-situ observation of tribochemical and morphological evolution of single-layer WS2 and multi-layer WS2/C coatings	36
Large-scale fabrication of decoupling coatings with promising robustness and superhydrophobicity for antifouling, drag reduction, and organic photodegradation	36
Starved lubrication analysis of angular contact ball bearing based on a multi-degree-of-freedom tribo-dynamic model	35
A theoretical justification of the slip index concept in fretting analysis	34
Semi-analytical calculation model for friction of polymers on the example of POM ∣ PE-UHMW and steel ∣ PE-UHMW	34
In memoriam: Shizhu Wen (1932–2023)	34
Prediction of ball-on-plate friction and wear by ANN with data-driven optimization	34