Thermodynamic potentials, diagram of state, and phase transitions of tin on shock compression

Abstract

The isochoric-isothermal potentials are constructed for white tin Sn(β) and two high-pressure phases of this metal, Sn(γ) and Sn(σ). Based on these and previously obtained similar data for tin melt Sn(ι), a phase diagram of tin is constructed in the ranges of pressure from zero to 120 GPa and temperature from 300 to 7000 K; the behavior of the shock adiabat of tin is then treated in the vicinity of its intersection with the obtained equilibrium lines of four phases.