Abstract:
The transition of water into the ice VII phase was observed in experiments with its step-like shock compression. The transition occurs from a state “overcooled” by approximately 40 K. In the experiments, we observed relaxation of pressure as a result of the transition on a surface of LiF window as well as dispersion of the compression wave which propagates through the water with the state parameters needed for beginning of the transformation.
Keywords:shock waves, high pressures, water, solidification.