S. V. Hashkovsky, R. S. Shornikov, O. A. Shilova, and I. G. Polyakova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,
nab. Admirala Makarova 2, St. Petersburg, 199034 Russia
e-mail: laich@isc.nw.ru
Received July 17, 2009
Abstract—Glass-ceramic composite coatings have been synthesized from doped “silica sol–chromium oxide”
sol–gel systems. The physicochemical and electrophysical properties of the coatings have been investigated
using thermal analysis, X-ray powder diffraction, electron microprobe X-ray analysis, and atomic-force micros-
copy. The results obtained have been used to optimize the conditions for the sol–gel synthesis of the coatings
and the regimes of their formation. The use of the coatings synthesized makes it possible to substantially
improve the performance characteristics of X-ray devices and to increase the output of high-quality products
under conditions of commercial fabrication.
Key words: sol–gel technology, doped silica sol, finely dispersed filler, glass-ceramic composite coatings, thin-
layer electrical insulation
DOI: 10.1134/S1087659610040085
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