Microstructure of laser-induced combustion synthesis of Cu59.6Zr36.9Al3.5 alloy

Cu59.6Zr36.9Al3.5 alloy are prepared by laserinduced combustion synthesis technology. The microstructure and phases formed of the product is studied by XRD and TEM. The product consists of mixtures of amorphous and crystalline phases, mainly(a-Zr, Zr2Cu, Zr10Cu7 and Cu8Zr3. The amorphous and nanocrystalline phases content over 50% in volume estimated from the broad peak in the XRD spectrum. TEM and HRTEM results show that the microstructure is characterized by inhomogeneously distributed amorphous, nano Zr2Cu, relatively gross (~100 nm) Zr2Cu, and large grain Cu10Zr7