Aerospace
Refractory materials for precision casting and extreme temperature applications
The aerospace industry operates in some of the most demanding environments, where materials are exposed to extreme temperatures, high mechanical stress, and strict safety requirements. Refractory solutions play a critical role throughout the aerospace manufacturing process, from precision casting of complex components to high-temperature insulation in engines, turbines, and launch systems.
Investment casting for aerospace components
Refractory materials are essential in the investment casting (lost wax) process used to produce complex, high-precision aerospace components. Ceramic-based refractories form moulds capable of withstanding the high pouring temperatures required to cast advanced alloys used in turbine blades, engine parts, structural airframe components, and control systems. These moulds ensure dimensional accuracy, excellent surface finish, and stability throughout the casting process, enabling the production of components with tight tolerances and superior metallurgical properties.
Lost wax precision casting
In the lost wax process, refractory coatings and moulds are used to create highly detailed wax patterns which are subsequently encased in ceramic shells. After the wax is removed, molten alloys are poured into the refractory shell to form complex geometries required for high-performance aerospace components. The thermal stability, surface integrity, and non-reactive nature of refractory materials are crucial to prevent defects, maintain dimensional control, and achieve high yield rates in critical aerospace casting operations.
High-temperature insulation for engines and propulsion systems
Refractory insulation is widely applied in aerospace propulsion systems, including jet engines, gas turbines, and rocket engines. Components operating under extreme thermal conditions require high-performance insulation to control heat flow, protect structural elements, and maximise efficiency. Refractory linings are used in combustion chambers, exhaust nozzles, and thermal barriers to withstand continuous exposure to elevated temperatures during flight and atmospheric re-entry.
Refractory solutions for rocket launches and space exploration
During rocket launches, refractory materials are used in ground infrastructure such as flame trenches, launch pads, and exhaust deflectors, where they must withstand the direct impact of high-velocity exhaust plumes and extreme thermal shock. Their resistance to erosion, spalling, and rapid temperature fluctuations ensures the structural integrity of critical launch systems during repeated cycles of intense heat exposure.
Thermal protection for test facilities and manufacturing
Aerospace research and development facilities rely on refractory linings in test cells, thermal processing equipment, and heat treatment furnaces used for material testing, engine trials, and component manufacturing. Refractory solutions provide stable, reliable protection under continuous high-temperature operating conditions.
Supporting performance, safety, and innovation
With outstanding resistance to heat, thermal shock, chemical attack, and mechanical wear, refractory materials are indispensable in the manufacturing, operation, and testing of modern aerospace technologies, supporting ongoing advancements in aircraft performance, propulsion efficiency, and safety standards.