The order-disorder transition in supersaturated Zr100-xAlx studied by inelastic neutron scattering

We have studied the influence of supersaturating Zr by Al on the atomic dyn amics or the supersaturated solid solution using inelastic neutron scatteri ng before and after the order-disorder transition. The samples (x = 5, 10 a nd 20 at.%) were characterized by X-ray diffraction and differential scanni ng calorimetry (DSC). From the neutron scattering data the generalized vibr ational density of states (GVDOS), and the dynamic structure factors were d etermined in all cases. We find a small but distinct weakening of the lower energy (transverse) modes on supersaturation. (C) 2001 Elsevier Science B. V. All rights reserved.