Simplified model for the melting point of oxides

• • The simplified model Tm = 0.052Ueff + 122.6 K achieves a mean absolute error of 76 K and R² = 0.97 across 68 oxides, enabling rapid prediction of melting points with high accuracy. • • The model identifies potential oxides with Tm > 3273 K, such as HfO2 (predicted 3273 K) and ZrO2 (predicted 3243 K), which are critical for ultrahigh-temperature applications. • • The model's reliance on bond length, bond density, and bond ionicity provides physical interpretability, allowing materials scientists to design new oxides by tuning these parameters. • • The simplified equation eliminates the need for complex iterative solving, reducing computational cost and enabling high-throughput screening of oxide candidates.