organic friction modifiers Archives

Boundary Lubrication

15.03.2020 James Ewen, PhD

What is Boundary Lubrication? Boundary lubrication describes situations where the applied load is primarily supported by contacting solid asperities, rather than a liquid lubricant. The boundary lubrication regime acts when the lambda ratio (the ratio […]

Bio-tribological Advancements in Modular Interface of a Joint Implant

30.01.2024

Introduction In daily activities, articulating interfaces undergo three-dimensional dynamic motion and loading, transmitting frictional forces to modular interfaces, causing fretting wear and corrosion. This phenomenon is observed in various artificial joints, including hips, knees, shoulders, [...]
How does roughness impact your EHD contact?

08.03.2021

Table of Contents A bit of contextThe homogenisation methodMethod assessmentTo conclude A bit of context Let’s say you want to design a new car but that you are a new car manufacturer. You can’t [...]
Superlubricity of nanodiamonds glycerol colloidal solution

22.03.2016

Earlier we reported about superlubricity achieved with a mixture of water and 30 [wt%] glycerol by researchers from Tsinghua University, Beijing. The same investigators just published a paper using this as a base lubricant and [...]
How to better predict the minimum film thickness of elastohydrodynamic contacts?

11.01.2021

Let’s say you have the choice between an almost infinite lifespan device, and a device that undergoes wear and failure within a few minutes or hours of running. In most cases, you would choose the [...]
From the Climate Change to the Atomic Scale Friction: Contact Mechanics Workshop Summary

11.11.2019

Table of Contents Friction impact on the climate changeThe New Advances of SuperlubricityThe Friction and the EarthquakesModeling contact of elastic solids using GFMDTribology at the molecular levelFriction at the adhesive contacts This is a summary [...]