Wiki Tag: power spectral density

power spectral density of a rough surface

Power Spectral Density of Rough Surfaces

26.08.2018 tribonet

Roughness is known to be an important factor in friction, wear and related performance of the machine parts. It was shown recently that Power Spectrum Density (PSD) can be used as a metric to describe […]

Detect stress and fracture using color changing elastomers - mechanochromic sensors

16.04.2018 925 Views
Biological materials have complex mechanical properties that are difficult to reproduce using synthetic materials. An international team of researchers, including Dr. Andrey Dobrynin, a professor in The University of Akron’s College of Polymer Science and [...]
Tungsten Pentaboride Can Replace Diamonds for Drilling Purposes

13.01.2020 872 Views
Often, when an individual hears the word diamond, a vision of love and an engagement ring is what first comes to mind. If the first picture is not an engagement ring, then it is typically [...]
Molecular Dynamic Simulations and AFM Experiments at Overlapping Speeds

11.04.2016 408 Views
Atomic Force Microscopy (AFM) is a powerful and convenient experimental measurement device in the field of nano-scale tribology. It was successfully applied to explore superlubricity in a graphene-gold interface and superlubricity due to repulsive van [...]
Ice friction and frictional heat

07.02.2016 327 Views
As it was already pointed in the recent post, the friction on ice is an important topic and its typical low value is attributed to the formation of the water film. Despite our everyday life [...]
Superlubricity with Green Lubricant

12.09.2016 777 Views
Superlubricity is a state of vanishing sliding friction. It has been reported in glycerol/water mixture lubricated contacts, graphene-gold interface, interface in presence of graphene and in other conditions. Increasing number of reports on superlubricity in [...]