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Optical properties and radiation stability of thermal control coatings based on doped zirconium dioxide powders

Published online by Cambridge University Press:  03 March 2011

M.M. Mikhailov  and
A.S. Verevkin
M.M. Mikhailov
Affiliation:
Space Materials Science Laboratory, Tomsk State University of Control Systems and Radio Electronics, Tomsk 634043, Russia
A.S. Verevkin
Affiliation:
Space Materials Science Laboratory, Tomsk State University of Control Systems and Radio Electronics, Tomsk 634043, Russia
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Abstract

The effect of the doping by compounds with bivalent and trivalent cations (BN, Al2O3, MgO + SiO2) on the diffuse reflectance spectra (ρλ) and the integral solar absorptance (as) and their changes at irradiation (with 30 keV electrons, 3 keV protons, and electromagnetic radiation that imitates solar spectra) of the reflecting thermal control coatings based on ZrO2 powders is examined. The coating based on untreated ZrO2 pigment and the coatings based on the pigments treated with 1 and 3 mass% of Al2O3 nanopowder were subjected to simultaneous action of electrons, protons, and electromagnetic radiation that imitates action of these irradiations on geostationary satellite orbit. After that, the comparative investigations of the changes in spectral reflectance and solar absorptance of these coatings were carried out.

Keywords

SputteringOptical spectroscopyCoating
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 2 , February 2004 , pp. 535 - 541
Copyright
Copyright © Materials Research Society 2004

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References

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