The Effect of Static Magnetic Field on the Channel Formation during Directional Solidification of Aqueous Ammonium Chloride Solution

This study investigates the effect of magnetic field on the channel formation by using a 27 wt.% aqueous ammonium chloride solution at an initial base temperature of 246 K (−27 °C) under magnetic fields of 0.03T, 0.05T, and 0.1T. The application of a magnetic field suppresses channel formation, as reflected by the delayed occurrence, the decreased number and density of channels, and the increased areas with no channels and mushy‐zone height...