Optical And Mechanical Properties Of Highly Transparent Spinel And ALON Domes

Optical and mechanical properties of aluminum oxynitride (ALON) and magnesium aluminate spinel (MgA1 2 0 4 ) are presented as well as some optical properties of spinel and ALON hemispherical domes. These materials are transparent in the visible and mid IR and are durable polycrystalline ceramics.