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Formation of contact layers during pre-treatment of aluminum by chromating before enameling

  • Coatings. Enamels
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Several methods of preparing an aluminum surface prior to single-layer enameling are examined. Amethod is developed for preparing an aluminum surface by alkali chromate oxidation in a solution based on K2Cr2O4 without annealing but with pre-degreasing with formation of complexes of the type [Al(OH)4(H2O)2]–, [Al(OH)6] – 3, and [Al(OH)5(H2O)] – 2. The effect of the preparation methods on the quality of the enamel coating is studied. The mechanism of the formation of nano-dispersed layers of solid solutions which promote stable bonding of a coating to aluminum is studied.

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Authors and Affiliations

  1. South-Russia State Technical University (NPI), Novocherkassk, Russia

    E. A. Yatsenko

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  1. E. A. Yatsenko
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Correspondence to E. A. Yatsenko.

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Translated from Steklo i Keramika, No. 9, pp. 24 – 28, September, 2010.

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Yatsenko, E.A. Formation of contact layers during pre-treatment of aluminum by chromating before enameling. Glass Ceram 67, 286–290 (2011). https://doi.org/10.1007/s10717-011-9281-4

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  • DOI: https://doi.org/10.1007/s10717-011-9281-4

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