Making sense of metallic glass

If you freeze any liquid fast enough, even liquid metal, it becomes a glass. Vitrified metals, or metallic glasses, are at the frontier of materials science research. They have been made by rapidly cooling alloys of various metals including, zirconium, palladium, iron, titanium, copper, and magnesium, and used for a variety of applications from making golf clubs to aerospace construction. But much about them remains poorly understood.