What are Refractory Ceramics?

Refractory ceramics are extremely heat-resistant engineered materials designed to withstand extreme temperatures required by manufacturing and other industrial processes. Refractory ceramics include technical ceramics, thermal ceramics, high temperature ceramics (HTCs), and ultra-high temperature ceramics (UHTCs), the latter of which can withstand temperatures in excess of 2000 °C. Beyond temperature resistance, refractory ceramic materials have numerous other assets such as excellent resistance to oxidation and corrosion, high thermal conductivity and mechanical strength, low thermal expansion, and outstanding abrasion resistance. Applications for refractory ceramics include crystal growth of semiconductors, metallurgy and steel production, glass manufacturing, solid-oxide fuel cells (SOFCs), nuclear reactors, aerospace and automobile components, protective ceramic coatings, and industrial tooling.

Thermal and refractory ceramics are inorganic, engineered materials that are designed for high-temperature applications. They are used for thermal insulation and fire proofing, and also as structural materials. Additional applications include wear parts and tooling, electrical and electronic components, and ballistics.

Insulating firebricks are shaped like rectangular slabs and used to line blast furnaces for smelting operations.

Monolithics are heavy but versatile castable ceramics that sometimes contain high amounts of iron and alumina.

Fibers are plastic foams made of ceramic clay. Generally, they have low shrinkage values.

Refractory ceramics enable high temperature processing applications. The base materials are typically alumina, magnesia, or alumino silicates, though other compositions offer superior performance in specific applications.

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