Aluminium Oxynitride

Aluminium oxynitride or AlON is a ceramic composed of aluminium, oxygen and nitrogen. It is marketed under the name ALON by Surmet Corporation. ALON is optically transparent in the near-ultraviolet, visible and midwave-infrared regions of the electromagnetic spectrum.



Technology and Manufacturing Capabilities

ALON® or Aluminum Oxynitride is an amazing and unique transparent advanced ceramic that is polycrystalline (made from powder) with a cubic spinel crystal structure. In the popular media and in the Star Trek community, it is commonly referred to as Transparent Aluminum. Surmet is the only company globally, that manufactures ALON®.

Taking over the development of ALON® from a laboratory demonstration stage in 2002, Surmet is proud to announce the commercial availability of ALON® in large volumes and in really large sizes. Over the last 12 years, Surmet has invested large sums of monies to build up its vertically integrated optical ceramics manufacturing capability. Surmet gratefully acknowledges US DOD funding help in this accomplishment. Creating such a capability required a great deal of patience and attention to detail, and complete commitment, as the return on investment for new technology materials is a slow, uncertain  and painstaking endeavour.

ALON® Optical Ceramic’s Key Features

  • Transparent:High optical transmission (>85%) near-UV to mid-IR wavelengths (0.25 to 4.0 μm)
  • Crystal clear:Excellent clarity and no inherent birefringence
  • Durable:Outstanding hardness, scratch resistance and high strength
  • High quality:Excellent Refractive index homogeneity over large areas
  • Commercially available:Available in large sizes up to 18×35-in windows as well as in various shapes including hyperhemispherical and hemispherical domes in large quantities..
  • Robust process:Produced using very robust process with consistently high quality and yields
  • Enormous Broad Application Potential:Applicable to a wide variety of industries where combination of high transparency and durability are needed. Examples include aerospace, security,  defense and semiconductor, Energy, mining and consumer products.
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Aluminium oxynitride or AlON is a ceramic composed of aluminiumoxygen and nitrogen. It is marketed under the name ALON by Surmet Corporation. AlON is optically transparent (≥80%) in the near-ultraviolet, visible and midwave-infrared regions of the electromagnetic spectrum.  Read More