Progress in Quantitative Adhesion Testing of Films and Coatings by means of Centrifuge Technology – Present State of the Art

Authors

  • Uwe Beck BAM Federal Institute for Materials Research and Testing, Berlin, Germany
  • Stefan Hielscher BAM Federal Institute for Materials Research and Testing, Berlin, Germany
  • Matthias Weise BAM Federal Institute for Materials Research and Testing, Berlin, Germany
  • Renate Mix BAM Federal Institute for Materials Research and Testing, Berlin, Germany
  • Dietmar Lerche LUM GmbH, Berlin, Germany
  • Uwe Reitz LUM GmbH, Berlin, Germany

DOI:

https://doi.org/10.3384/wcc2/169-172

Abstract

Standardised conventional adhesion tests are time-consuming single-sample tests. Moreover, except for the pull-off test, all these tests provide only qualitative or semi-quantitative (ranking, respectively measurement of an adhesion-correlated quantity) information on adhesion. Sometimes, adhesion is evaluated even under compressive stress conditions (e.g. cross-cut and scratch test), which itself is a contradiction to adhesive strength as defined in terms of tensile force per area.

For optical coatings it has been shown that the pull-off test in a centrifuge is definitely a promising alternative with respect to the reliable, fast and quantitative determination of adhesive strength in N/mm2. The force-controlled centrifuge test is the only multiple-sample test which provides reliable quantitative information on the adhesive strength in agreement with DIN EN 15870 and DIN EN ISO 4624 on a statistical basis for up to eight samples simultaneously tested under identical testing conditions.

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Published

2013-03-04

How to Cite

1.
Beck U, Hielscher S, Weise M, Mix R, Lerche D, Reitz U. Progress in Quantitative Adhesion Testing of Films and Coatings by means of Centrifuge Technology – Present State of the Art. PSE [Internet]. 2013 Mar. 4 [cited 2021 Dec. 9];2(13):169-72. Available from: https://wcc.ep.liu.se/index.php/PSE/article/view/421