Thermophysical properties of SF₆-Cu mixtures at temperatures of 300-30 000 K and pressures of 0.01-1.0 MPa: Part 1. Equilibrium compositions and thermodynamic properties considering condensed phases

The equilibrium compositions and thermodynamic properties of SF₆-Cu mixtures with copper proportions up to 50% are calculated as a function of temperature from 300 to 30 000 K and pressure from 0.01 to 1.0 MPa. The condensed phases and Debye-Hckel corrections are both taken into account. The influences of condensed phases, Debye-Hckel corrections, copper proportions and gas pressures on the composition and/or thermodynamic properties are discussed in detail under various conditions. Some results are tabulated for the modelling of SF₆ arc plasmas contaminated by Cu.