User:Manas awasthi1

Worlds first uncuttable material(proteus)

Every substance we know of is cuttable,even diamonds—until now. Engineers have developed a material they call "Proteus" that they claim is the first manufactured uncuttable material. The compound is made of porous aluminum and ceramic, so it is lighter than steel and yet will withstand any grinder.

This first prototype was created by Julian Melchiorri, a graduate student. The leaf consists of chloroplasts (organelles found in plant cells and eukaryotic algae that conduct photosynthesis) suspended in a body made of silk protein.

As the cutting tool bites into the aluminum, it suffers extreme vibrations when it hits the ceramic spheres. This resonance causes the tool to start bouncing, thus "dulling" its cutting edge. Furthermore, as the ceramic is hit, fine dust particles fill in the matrix. The interatomic forces between the grains increase proportionately to the amount of energy applied, making the material even harder the faster the tool spins.