Au4Zr5

Au4Zr5 is an intermetallic compound combining gold and zirconium in a 4:5 stoichiometric ratio, representing a hard, brittle phase typically found in the Au-Zr binary phase diagram. This material is primarily of research interest for specialized high-temperature and corrosion-resistant applications, as intermetallics in the Au-Zr system offer potential for extreme environment use where gold's corrosion resistance and zirconium's refractory characteristics are both advantageous. Unlike conventional gold alloys used in jewelry or bonding wire, Au4Zr5 and related Au-Zr phases are candidates for aerospace thermal barriers, nuclear or chemical processing environments, and electronic device interconnects where both thermal stability and resistance to aggressive media are critical.