Experimental Measurement of Anisotropy in Crystal-Melt Interfacial Energy

摘要

Experimental methods for the determination of anisotropy in crystal-melt interfacial energy are explored. Equilibrium shape measurements of liquid droplets entrained in single-phase solid are utilized and results are reported for an Al-Cu and an Al-Si alloy. The grain boundary groove method for determination of interfacial energy anisotropy is also examined. A complete coupled-groove solution is presented for a general tilt-boundary groove. The effects of various physical parameters, including interface energy anisotropy, on the groove shape are discussed.