= Constitutional supercooling
Constitutional <supercooling> occurs when liquid ahead of a solidification <phase boundary> lies below its local <liquidus>. In a saline liquid with $T_L=-mC$ and $m>0$, <salt rejection> enriches the interface liquid and depresses its <liquidus>; as the <concentration> decreases away from the interface, the <liquidus> rises. If it rises faster than the actual <temperature>, a supercooled interval appears. This can make a planar solidification <phase boundary> unstable.
Back to article page
