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Structural Characterization by SIMS of Alumina Coatings on Stainless Steel

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Abstract

Al2O3 coatings were obtained by the alkoxide route and deposited on stainless steel using the dip coating technique. The starting precursor was aluminum sec-butoxide modified by acrylic acid in order to prevent its precipitation in the presence of water.

Useful information for the structural organization of alumina coatings on stainless steel is deduced from SIMS analysis. SIMS data reveal that the coating structure brings into play two different layers: an outer alumina layer that is more or less doped, mainly by iron, and an internal layer corresponding to the alumina/steel interphase. Beneath the interphase, the presence of an oxidized steel layer on the substrate surface is detected.

Whatever the coating, the alumina/steel interphase exhibits a nearly constant thickness. On the other hand, a thickness variation of the oxidized steel layer is observed between samples under study: this thickness increases with the curing time of the coating.

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Authors and Affiliations

  1. Laboratoire GEMPPM, UMR CNRS 5510 INSA, 20 Avenue Albert Einstein, 69621, Villeurbanne Cedex, France

    K. Velez

  2. Laboratoire GEMPPM, UMR CNRS 5510 INSA, 20 Avenue Albert Einstein, 69621, Villeurbanne Cedex, France

    J.F. Quinson

Authors
  1. K. Velez
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  2. J.F. Quinson
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Velez, K., Quinson, J. Structural Characterization by SIMS of Alumina Coatings on Stainless Steel. Journal of Sol-Gel Science and Technology 19, 469–472 (2000). https://doi.org/10.1023/A:1008759832588

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  • DOI: https://doi.org/10.1023/A:1008759832588

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