Amorphization by Solid-State Reaction of a Ni Single Crystal and Zr

Abstract

Amorphization by solid-state interdiffusion of bilayers consisting of a Ni single crystal and polycrystalline Zr has been studied by Rutherford-backscattering spectrometry and X-ray diffraction analysis. This type of bilayer samples forms an amorphous phase, starting at the interface in the same way as polycrystalline diffusion couples. The lack of a significant nucleation barrier is in contrast to the recently reported study, where a Zr single crystal and a polycrystalline Ni film did not interdiffuse.