repulsive Archives - About Tribology

Superlubricity by means of repulsive van der Waals forces

06.04.2016 Aydar Akchurin

Superlubricity, a state of low friction (<0.001), can be achieved by different mechanisms. The structural superlubricity occurs, if the crystal lattices of the contacting bodies are incommensurate. Nano-scrolls may act as a bearing and may […]

Ab Initio Analysis of Carbon Film Lubricity

16.05.2016

Carbon-based nanomaterials, coatings and films attracted a great attention due to proved possibility to achieve lowest friction and wear without environmental pollution. However, frequently, the state of the low friction is strictly related to the [...]
Morphable surfaces could cut air resistance

30.11.2017

Adding golf ball-like dimples to surfaces could reduce drag and improve efficiency of vehicles. There is a story about how the modern golf ball, with its dimpled surface, came to be: In the mid-1800s, it [...]
Superhard carbon forms predicted – harder than diamond

04.11.2019

Superhard materials can cut, drill and clean other bodies. Besides, they hold potential for making scratch-safe coatings that could help guard costly equipment from damage. Science is finding a way to the development of new [...]
Biodegradable Triboelectric Nanogenerators to Power Implantable Sensors

15.06.2020

Energy harvesting (also sometimes called scavenging) is a process of energy derivation from the ambient sources, e.g., sunlight, wind, heat, mechanical vibrations, etc. The main idea is that devices can collect the energy present in [...]
Tribology in oral health

10.05.2021

While it may not be immediately obvious, the applications of tribology to oral health concern both restorative and preventative dentistry. On the one hand, the applications to restorative dentistry may be more apparent as oral [...]

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Superlubricity by means of repulsive van der Waals forces