Metals and other composites were the materials of choice for traditional aircraft production. However, with the advent of supersonic and hypersonic flights, these traditional materials could no longer meet the enormous demands and the extreme conditions found in those flights1. Hypersonic flight dictated the need for new materials possessing extremely exceptional material properties.
Silicon nitride can effectively replace legacy materials used in ball bearings, radomes, and RF windows for extreme applications. The ability to customize silicon nitride to a specific application is crucial to the overall optimization of these aerospace applications.