Scientists use high-pressure 'alchemy' to create nonexpanding metals
Monday, June 15, 2009 - 16:22
in Physics & Chemistry
By squeezing a typical metal alloy at pressures hundreds of thousands of times greater than normal atmospheric pressure, scientists at the California Institute of Technology (Caltech) have created a material that does not expand when heated, as does nearly every normal metal, and acts like a metal with an entirely different chemical composition.