Refining Behaviors in the Fractional Melting Process

Abstract

Fractional melting process involves heating an alloy within its liquid–solid region simultaneously ejecting liquid from the solid–liquid mixture. The extent of the purification obtained is comparable to that obtained in multi-pass zone refining. The fractional melting process in which the centrifugal force was used for separating the liquid from the mixture has been developed. The refining behaviors of the present F.M. process were analyzed quantitatively using the new parameter called "the refining partition coefficient, k' ". The effects of the process parameters such as a rotating speed and a heating rate on the coefficient, k' and the refining behaviors were also studied.