Refractory ceramics are materials designed to withstand high temperatures without melting or deforming. They are commonly used in applications such as kilns, furnaces, and reactors, where extreme heat is present. These ceramics are made from various raw materials, including alumina, silica, and magnesia, which provide their heat-resistant properties. These materials are essential in industries like metallurgy, glassmaking, and ceramics, where they help maintain structural integrity under harsh conditions. Refractory ceramics can also resist chemical corrosion, making them suitable for use in environments with reactive substances. Their durability and performance are crucial for efficient industrial processes.