Abstract
Complex Refractive Index and Dielectric Permittivity studies of presently used space shuttle tile materials at millimeter wavelength region reveal these tiles to exhibit similar absorption characteristics as fused silica materials. This absorption is mainly related to the water content in the specimen. A strong bire-fringence is observed at least in one of these fibrous refractory composite materials.
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M. N. Afsar, IEEE Transactions on Microwave Theory and Techniques, Vol. MTT-32, No-12, pp. 1598–1608, December 1984
M. N. Afsar, IEEE Transactions on Instrumentation and Measurement, vol. IM-36, No-2, pp. 530–536, June 1987
M. N. Afsar, IEEE Transactions on Instrumentation and Measurement, vol. IM-36, No-2, pp. 554–559, June 1987
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This research work was supported by a grant from NASA Langley Research Center (Number NAG-1-930)
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Afsar, M.N., Chi, H. & Li, X. Measurement of the complex refractive index and complex dielectric permittivity of T.P.S. space shuttle tile materials at millimeter wavelengths. Int J Infrared Milli Waves 11, 777–783 (1990). https://doi.org/10.1007/BF01010131
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DOI: https://doi.org/10.1007/BF01010131