Study of the Formation of Cu-24at.%Al by Reactive Milling

Publication date: 2015 Source:Procedia Materials Science, Volume 9 Author(s): M.F. Giordana , N. Muñoz-Vásquez , M. Garro-González , M.R. Esquivel , E. Zelaya In this work, powders of Cu and Al were milled with a proportion equal to 24% atomic Al, using low and medium energy mills. The initial, intermediate and final stages of the resulting powder are analyzed using scanning electron microscopy, X-ray diffraction and different transmission electron microscopy techniques. The structure and microstructure achieved in each step of the milling process are compared to the results of Cu-16at.% Al and Cu-30at.%Al obtained under the same conditions of reactive milling. At the final stage of milling, it was detected that the obtained intermetallic is not the equilibrium phase of the Cu-Al system.
Source: Procedia Materials Science - Category: Materials Science Source Type: research