THEORETICAL-ANALYSIS OF RIBBON FORMATION BY PLANAR FLOW CASTING

Two models of ribbon formation by Planar Flow Casting are analyzed, na mely that of a molten layer on a cold substrate and that of a basin wi th a cold bottom. The theoretical analysis has shown that the control parameters for ribbon formation are the time period during which the s olidification front penetrates into the melt, the temperature gradient inside the melt, and the latent heat. The correlation between the con trol parameters and the technical parameters of the ribbon casting is discussed. The theoretical predictions are compared with experimental fact.