Measurements of Clustering in Solid Al-Zn Alloys

In this work, measurements have been made of the x-ray diffuse scattering from solid solutions of aluminum containing up to 50 atomic percent zinc. Observations were made at 400°C which is above the solubility gap and all of the alloys were single phase face centered cubic solutions. Polycrystalline transmission samples were used, and data were obtained by a combination of photographic and Geiger-counter spectrometer methods using CoKα-radiation monochromated by a bent fluorite crystal.