Fig. 3. The thermodynamic processes of supercooling, isochoric freezing, the combination of isochoric freezing and supercooling and hyperbaric freezing.
A Temperature pressure phase diagram for water at the liquidus line which separates between the domain of pure water, above the line and ice Ih below the line. The line represents the thermodynamic state at which water and ice Ih are in thermodynamic equilibrium. The panel illustrates the thermodynamic path for different isochoric processes, isochoric supercooling, isochoric freezing and isochoric hypersupercooling (introduced in this study). B Calculated percentage volume and mass of unfrozen water in a freezing isochoric system, as a function of the temperature of the system. (Modified from17 with permission).