Thermodynamic Parameters of Mixtures with Silicon Nitride Under Shock-Wave Impact in Terms of Equilibrium Model

The results of numerical experiments on the modeling of the thermodynamic parameters of the shock-wave loading of silicon nitride Si₃N₄ and mixtures based on it are presented. A thermodynamically equilibrium model is used to account for the phase transition of Si₃N₄ during the shock-wave impact. The thermodynamic parameters of shock-wave loading are described for pure silicon nitride, as well as for mixtures of Si₃N₄ with potassium bromide KBr, periclase MgO, and aluminum nitride AlN. The computation results are compared with experimental data obtained by different authors.