Researchers from the University of Durham in the UK and the German Fraunhofer Institute have created Proteus material that cannot be cut. The description of the development was published by the scientific journal Scientific Reports.
When trying to cut through "uncut" material, it emits waves that destroy saw blades or knives. The peculiarities of such a material are explained by its internal structure. It consists of ceramic spheres that are inside an aluminum honeycomb structure. As a result, drills can cut through the top layers, but begin to dull when they reach the ceramic spheres.
Small particles of ceramic dust then fill the gaps in the metal structure, making it harder to cut the material, and speed only enhances the effect.
The material is noted to be effective against high pressure water cutters. The spherical shape of the ceramic elements expands the water jet and "dulls" even such a "blade".
Proteus has a density of 15 percent of steel. Scientists believe the material can be used for lightweight armor, indestructible bike locks and protective clothing.
In June, specialists from Peter the Great St. Petersburg Polytechnic University (SPbPU) developed a material from which miniature batteries can be made. Scientists have created an energy source based on lithium nickelate. In order for the resulting material to have the required thickness, they used a special method of molecular layering of the substance.
