What is a superlubricity?

Superlubricity is a phenomenon of special material in which friction between two materials decreases near zero. Real zero friction is not thermodynamically permissible, but super -lubricity is approaching. This phenomenon of super -lubricity occurs when two surfaces have crystal grids that are inaccurate inaccurate, which means that the crystal arrangement is such that only a small minority of atoms on the surface comes into contact with the contradictory surface, causing a small amount of friction. Needle on tungsten and silicon or graphite surface. Superlubricity was discovered when physicists studied very high accuracy, friction force between crystal surfaces. When there is a "disagreement of grid" between two such surfaces, friction can almost leave. This grid disagreement is simply achieved by playing with the crystal layer to each other with each other. In conventional lubricant, it causes a spewing effect between lubricants and adjacent surfaces in fact a certain friction, causing temperaturesU, loss of energy and material limits. In precisely formed super -lubricant surfaces, this marginal energy loss would virtually disappear, allowing new types of engineering. Unfortunately, to ensure the right orientation and stability of crystal grilles that could require nanoparticles, something beyond today's production.

Superlubricity was created by the relationship to the properties of superconductivity and excess, even if it has no real similarities to them. Superlubricity and her study is a relatively recent field raised in 1991, but in the meantime they were not much studied. In the superconduct, electricity flows without resistance and in excess fluid flows without resistance (friction). Although superfluids are free of friction, similar to super -lubricants, the basic physical mechanism is fundamentally different.