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Transparent Ceramics Find Wide Use in Optics

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Mohan Ramisetty, Suri A. Sastri and Lee Goldman, Surmet Corp.

Polycrystalline ceramics with the cubic spinel structure enable multiple defense applications, including night-vision goggles and IR optics for military systems such as domes, lenses, reconnaissance and sensor windows – they also have applications in nonmilitary arenas such as semiconductor processing, oil and gas drilling, medical optics and lasers. Spinel ceramics have been around for a very long time, and ALON – a ceramic based on a composition of aluminum oxynitride with a cubic spinel crystal structure – has been around for over 50 years. However, until the late...Read full article

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