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, 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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