<title>Hugoniot measurement study of KCl single crystal by means of the inclined-mirror streak photographic system</title>

Abstract

It had been reported that for KCl the B1 - B2 phase transition occurs under shock and static compressions, but, the measured transition points showed large scatter. In this study, the Hugoniot-measurement experiments were performed on KCl single crystals in the pressure range up to 50 GPa to obtain the informations about the phase transitions and equation of state. The Hugoniot parameters were measured by the inclined- mirror method using a mirror-rotating type streak camera and a pulsed dye laser or Xenon flash lamp, combined with a powder gun or two-stage light gas gun. The Hugoniot-elastic limits were found to be very small. The anisotropic phase transition points (2 - 2.5 GPa) were observed.