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Nanostructured silicon sol-gel surface treatments for Al 2024-T3 protection

  • Technical Articles
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Journal of Coatings Technology

Abstract

Current coatings for aircraft corrosion protection are based on chromate surface treatments, primers, and topcoats. One approach to developing a chromate-free surface treatment is through the use of sol-gel materials that interact strongly with both the substrate and the subsequent polymer layers. Results are reported here on a new sol-gel technique using a pre-formed, self-assembled, nano-phase particle (SNAP) sol-gel system. SNAP films have been investigated by infrared spectroscopy, atomic force microscopy, and electrochemical methods. Potentiodynamic polarization and electrochemical impedance spectroscopy demonstrated that the SNAP system generates high quality, defect-free, durable films. Formulation parameters, including crosslink density and coupling agent application, were optimized based on experimental results.

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Authors and Affiliations

  1. Air Force Research Laboratories, USA

    A. J. Vreugdenhil, V. N. Balbyshev & M. S. Donley

  2. University of Dayton Research Institute, 300 College Park, 45469-0168, Dayton, OH

    A. J. Vreugdenhil

  3. Universal Technology Corp., 1270 N. Fairfield Rd., 45432-2600, Dayton, OH

    V. N. Balbyshev

Authors
  1. A. J. Vreugdenhil
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  2. V. N. Balbyshev
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  3. M. S. Donley
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Additional information

Materials and Manufacturing Directorate, Nonmetallic Materials Division, Coatings Research Group, Wright-Patterson AFB, OH 45433-7750.

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Vreugdenhil, A.J., Balbyshev, V.N. & Donley, M.S. Nanostructured silicon sol-gel surface treatments for Al 2024-T3 protection. Journal of Coatings Technology 73, 35–43 (2001). https://doi.org/10.1007/BF02730029

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