It’s a basic rule of chemistry and physics: when you heat things up, they get bigger. While there are exceptions (like water and ice), it’s difficult to find a material with zero thermal expansion.
But new research from the University of New South Wales and the Australian Nuclear Science and Technology Organisation has found a compound that doesn’t thermally expand – at least, not between −269°C and 1126°C.
The researchers examined a substance made from scandium, aluminium, tungsten and oxygen (Sc1.5 Al0.5 W3 O12), bonded together in a crystalline structure.
Comments are closed.