The interaction of a nanosize coating with HCl solutions proceeds in two stages. I. Swelling of the coating is accompanied by an increase of its index of refraction as a result of the air present in the pores in the film being replaced by the more strongly refracting solution and washing of the more weakly refracting oxides, penetrating from the glass substrate, out of the coating. II. Dissolution of the coating is accompanied by a decrease of its thickness and index of refraction. The overall result is expressed as an increase or decrease of these indicators depending on which of the indicated processes predominates.
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Translated from Steklo i Keramika, No. 9, pp. 37 – 41, September, 2012.
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Atkarskaya, A.B. Changes in nanosize coatings by sulfuric acid solutions. Glass Ceram 69, 313–317 (2013). https://doi.org/10.1007/s10717-013-9469-x
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DOI: https://doi.org/10.1007/s10717-013-9469-x