The dynamics of the interaction of thin sol-gel films with acid solutions is shown. It was found that in this case two oppositely directed processes take place. Swelling increases and dissolution decreases the thickness of the coatings. The effect of acid concentration and etching duration on these phenomena is described. The change in the refractive index of the films after interaction with an aggressive medium is estimated and explained. Tab. 2, ill. 2, bibliography: 4 titles.
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UDK 666.1.056'539.23:620.193
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Science for glass production
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