Solid–Liquid Phase Diagram

A solid–liquid phase diagram shows the conditions (temperature and pressure) under which a material exists as a solid, liquid, or a mixture of both. It features lines called phase boundaries that indicate when a substance melts or solidifies. The diagram helps understand at what temperature a solid melts into a liquid and vice versa, depending on pressure. It is essential in industries like metallurgy and materials science, providing insights into how substances behave under different conditions, and guiding processes such as casting and crystallization to achieve desired material properties.