The effect of heating on optical properties and radiation resistance of coatings based on micro- and nanosized aluminum oxide powders

摘要

Comparative analysis of the effect of heating in air (at T = 800°C for 2 h) on the diffuse reflectance spectra in the range of 360-2100 nm and on the integrated coefficient of the solar radiation absorption of coatings based on Al_2O_3 micro- and nanopowders has been carried out. Their variation under electron irradiation has been studied. It is established that the heating of powders deteriorates the optical properties and radiation resistance of coatings.