28 September 1994 Properties of diamond for window and dome applications
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Clear diamond windows with thicknesses of 0.3 - 1.0 mm and diameters up to 6 cm have now been produced. In the 8 - 14 micrometers infrared region, the absorption coefficient is as low as 0.1 - 0.3 cm-1, optical scatter is below 1%, and emissivity is below 3% at 500 degree(s)C. Microwave dielectric properties, thermal properties, and most mechanical properties of chemical-vapor-deposited diamond are equivalent to those of Type IIa natural diamond. The mechanical strength of 0.5 - 1 mm thick chemical-vapor-deposited diamond attained so far is an order of magnitude lower than that of natural diamond, and is governed by microscopic cracks and defects.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel C. Harris, "Properties of diamond for window and dome applications", Proc. SPIE 2286, Window and Dome Technologies and Materials IV, (28 September 1994); doi: 10.1117/12.187343; https://doi.org/10.1117/12.187343

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