“Super-hard” metals forged in new nanoparticle manufacturing process


Researchers at Brown University have developed a new way to make super-hard metals. The team made nanoparticle “building blocks” that could be fused together under moderate pressure, thanks to a chemical treatment.
A material’s hardness specifically describes how well it resists being scratched or bent out of shape by force or pressure. In the case of metals, it’s usually determined by the size of the microscopic grains that make it up – the smaller the grain, the harder the metal.
Normally a metal is made harder using macroscopic manufacturing methods like hammering, bending or twisting. But