We describe the resistance to slip of an interface as friction, and the origin of that friction can vary widely: roughness, plasticity, lubrication, temperature, etc. Some of those originating mechanisms can also change with time: asperities flattening, lubricating migration, or other things. The way that people have tried to quantify those changing mechanisms is to […]
Shab celebrated her recent publication in Soft Matter by connecting with the community for a day through Paper2Tree. First she worked with a class at Booker T Washington Elementary School to demonstrate a bit about the science of wear. Then she helped plant a tree to recognize that academic publications have used extensive resources, and […]
How does a high-water-content hydrogel surface respond to step changes in speed? Jiho measured the lubrication mechanics of a complex shear interface through tribo-rheometry to try and figure it out. Out of all the possible responses, we find a combined time-dependent and shear-thinning response, just like a complex fluid. Check it out for more details.