Investigations on zirconium-containing conversion layers on aluminium |
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| Authors: | H. Hubert H. Puderbach H. Pulm W. A. Roland |
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| Affiliation: | (1) Institut für Spektrochemie und angewandte Spektroskopie, Bunsen-Kirchhoff-Strasse 11, D-4600 Dortmund 1, Federal Republic of Germany;(2) Henkel KGaA, Henkelstrasse, POB 1100, D-4000 Düsseldorf, Federal Republic of Germany;(3) Gerhard Collardin GmbH, Widdersdorfer Strasse 215, D-5000 Köln 30, Federal Republic of Germany |
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| Abstract: | Summary Conversion layers on technical aluminium produced by a  no-rinse process for the purposes of food wrapping products are based on the application of aqueous solutions containing mainly zirconium compounds and polyacrylic acid. By the combined use of the methods TEM, AES, XPS and ISS, in-depth profiling of the elements Al, Zr, C, O and F are achieved, the existence of the chemical compounds Al2O3, ZrO2 or the respective mixed oxides and polyacrylic acid or the fragments are detected. The layer thicknesses are determined amounting to 10–40 nm, and the surface-related mass of zirconium is estimated to 10–35 mg/m2.
Untersuchungen an zirkonhaltigen Konversionsschichten auf Aluminium |
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