Results 31 to 40 of about 834 (177)

The Effect of Temperature and Physical State of Water on the Frictional Properties of Chlorite‐Altered Basaltic Gouges (Krafla Geothermal Field, Iceland)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu, W. Feng, R. Gomila, T. Tesei, A. K. Mortensen, G. Di Toro   +5 more
wiley   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source

Interface‐Engineered Graphene‐Coated Titanium Dioxide Nanoparticles for High‐Performance Grease Lubrication

Advanced Materials Interfaces, Volume 13, Issue 3, 3 February 2026.
Graphene‐coated TiO2 core–shell nanoparticles are introduced as multifunctional additives for lithium grease, yielding an 85.7% reduction in wear rate, a 22% decrease in operating temperature, and improved film retention under mixed lubrication.
Ethan Stefan‐Henningsen, Amirkianoosh Kiani   +1 more
wiley   +1 more source

RESEARCH ON DYNAMIC CHARACTERSITICS OF LINE CONTACT FRICTION PAIRS UNDER THERMAL EHL STATE

Jixie qiangdu, 2023
The line contact elasto-hydrodynamic lubrication (EHL) phenomenon generally exists in key parts of mechanical systems e. g. bearings, gears, the lubricant oil film between the contact interfaces acts as a spring and damper, and the frictional heat ...
ZHU AnYuan, FANG CongCong, ZHOU Wei, PENG YongDong   +3 more
doaj  

Finite Element‐Based Wear Prediction Using Archard's Law for Single Mobility Bearing of Total Hip Prosthesis During Walking: A Literature Review

Engineering Reports, Volume 8, Issue 2, February 2026.
This review provides a comprehensive and critical evaluation of computational wear prediction studies in total hip prostheses, with a specific focus on those employing Archard's wear law within finite element frameworks under walking conditions for single mobility bearing designs.
Muhammad Imam Ammarullah, Abdulfatah Abdu Yusuf, Mohamad Izzur Maula, M. Danny Pratama Lamura, Budi Setiyana, Mohammad Tauviqirrahman, Athanasius Priharyoto Bayuseno, Jamari Jamari, Muhammad Hanif Ramlee   +8 more
wiley   +1 more source

Isothermal Elasto-hydrodynamic Lubrication Analysis of the Roller Enveloping End Face Meshing Worm Drive

Jixie chuandong, 2022
Based on the transmission theory of single roller enveloping end face meshing worm drive and isothermal elastohydrodynamic lubrication theory， and considering the influence of surface wavy roughness， a numerical analysis method is adopted to analyze the ...
Xiaolong Wang, Honghui Liao
doaj  

Beyond Viscosity: Saliva‐Driven Oral Processing of Commercial Dysphagia Foods Through Rheology, Tribology, and Mucoadhesion

Journal of Food Quality, Volume 2026, Issue 1, 2026.
Designing safe and acceptable foods for individuals with dysphagia requires understanding oral processing beyond viscosity‐based descriptors. Saliva plays a central role in bolus behavior by modulating lubrication, friction, and food–mucosa interactions. In this study, commercially available soft‐solid and gel‐like dysphagia‐oriented foods (pasta‐based
Giorgio Innocenzo Ascrizzi, Laura Piazza, Anet Rezek Jambrak   +2 more
wiley   +1 more source

Squeezing a lubricant with exponential pressure dependence of viscosity: Resolution of a hydrodynamic paradox

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 105, Issue 9, September 2025.
Abstract It is known that viscosity of most fluids, in particular lubricants, increases with pressure. The most typical dependence used in lubrication applications is a simple exponential law (Barus law). This behavior is of great importance for lubricated systems in highly loaded mechanical parts, such as rolling bearings, gears, or cam followers.
Rustam I. Khalmuradov, Mikhail Popov, Valentin L. Popov   +2 more
wiley   +1 more source

MICRO THERMAL ELASTOHYDRODYNAMIC LUBRICATION ANALYSIS OF LINE CONTACT ROLLER PAIRS CONSIDERING THE CHANGE OF ELASTIC MODULUS

Jixie qiangdu, 2021
As an important performance parameter of metal materials,the elastic modulus changes with temperature.However,in the analysis of thermal elastohydrodynamic lubrication,the elastic modulus has been taken as a constant,and there must be an error in the ...
LU ZunYou, LV YanJun
doaj  

Multi‐Dimensional Nano‐Additives for Their Superlubricity: Tribological Behaviors and Lubrication Mechanisms

Advanced Materials Interfaces, Volume 12, Issue 9, May 5, 2025.
This paper systematically introduces the characteristics and functions of 0D‐3D nanomaterials in super‐lubrication, analyzes the lubrication mechanism of these nanomaterials, and prospects the energy‐saving and environmental benefits brought by their progress in this field.
Kang Yang, Yahui Xiong, Guijun Wu, Haibo Lin, Jun Tang, Chao Wu, Hongliang Chen, Yaqiong Wang   +7 more
wiley   +1 more source