Skip to Main Content
Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.347162
Silicides, amorphous alloys, and metal‐induced crystallization of amorphous Si are commonly encountered in solid‐state reactions between Si and metals. In order to investigate the possible correlations between these phenomena, a thermodynamic analysis was made on various binary systems consisting of Si and metals. It was revealed that (1) the capability of forming silicides between Si and a transition metal results from the largely negative heat of mixing in a certain medium composition range of the two elements; (2) amorphous Si‐metal alloys may form not only in the systems which form silicides, but also in some systems which do not form stable silicides; and (3) the phenomenon of metal‐induced crystallization of amorphous Si occurs in a Si‐rich composition range of a binary system, which is attributed to the lowering of Si—Si bonding energy, owing to the incorporation of metal species. A model describing the phenomenon is developed.