Thermodynamic assessment of the B–C–Si system

Based on the critically assessed B–Si phase diagram, one alloy in the Si-rich side was selected and the temperature of the eutectic reaction L ↔ (Si) + SiB6 was measured to be 1636 K by means of DSC. Using a regular substitutional model for the liquid phase, the B–Si system was reassessed and extrapolated to higher-order systems. Thermodynamic description for the B–C–Si system was developed based on critically reviewed experimental data. The calculated phase diagrams were in good agreement with available experimental data.