New device for generating ultra-high pressure

This paper describes a unique device for generating ultra-high pressures of the order of 300 kilobars (30 GPa). This is a variable lateral support, Bridgeman anvil device which utilizes the principle of a segmented cylinder to provide the lateral support and to apply the force to the anvils. The system has been calibrated to 212 kilobars using resistivity measurements to detect the known phase transitions in bismuth, iron, lead, and 10 and 20% cobalt alloys of iron.