Accession Number : ADP001657

Title :   Ion Mixing and Phase Diagrams,


Personal Author(s) : Lau,S. S. ; Liu,B. X. ; Nicolet,Marc-A. ; Johnson,William L.

Report Date : 1983

Pagination or Media Count : 9

Abstract : Interactions induced by ion irradiation are generally considered to be non-equilibrium processes, whereas phase diagrams are determined by phase equilibria. These two entities are seemingly unrelated. However, it one assumes that quasi-equilibrium conditions prevail after the prompt events, subsequent reactions are driven toward equilibrium by thermodynamical forces. Under this assumption, ion-induced reactions are related to equilibrium and therefore to phase diagrams. This relationship can be seen in the similarity that exists in thin films between reactions induced by ion irradiation and reactions induced by thermal annealing. In the latter case, phase diagrams have been used to predict the phase sequence of stable compound formation, notably so in cases of silicide formation. (Author)

Descriptors :   *Ion beams, *Mixing, *Ion implantation, *Workshops, *Phase diagrams, Irradiation, Interactions, Chemical equilibrium, Thin films, Stability, Silicides, Metals, Solubility

Distribution Statement : APPROVED FOR PUBLIC RELEASE