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Quasi-static and dynamic depth-sensing indentation measurements to characterize wear and mar resistance of coating–polymer systems

  • F. Bernardo , J. Bardon , A. Riche und H. Pelletier EMAIL logo
Veröffentlicht/Copyright: 4. Februar 2022
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Abstract

Different layers of different thicknesses were coated on the same polymethyl methacrylate (PMMA) substrate. For each of these bilayered systems, quasi-static and dynamic instrumented indentations using continuous stiffness measurement have been made. We verified if data from indentation tests performed on a given sample obey a power law relationship. The aim was to calculate the viscoplasticity index n with sufficient accuracy (by taking into account the viscoelastoplastic properties of the studied samples), since this value is characteristic of the viscoplastic properties of a material and, therefore, allows evaluating the plastic scratch resistance of the surface. Thanks to both indentation methods the viscoplasticity index could be calculated and its value compared to the different bilayered systems one. As n is supposed to be intrinsic to a material, its value should not depend on the characterization technique.


Dr. Hervé Pelletier Laboratoire d’Ingénierie des Surfaces de Strasbourg, INSA Strasbourg 24, boulevard de la Victoire, F-67000 Strasbourg, France Tel.: +33 3 88 14 47 00 Fax: +33 3 8 14 47 99

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Received: 2004-10-24
Accepted: 2005-03-11
Published Online: 2022-02-04

© 2005 Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. nanomech 5
  4. Articles Basic
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  6. Nanoindentation investigation of solid-solution strengthening in III-V semiconductor alloys
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  8. On the pressure dependence of the indentation modulus
  9. A review on the reverse analysis for the extraction of mechanical properties using instrumented Vickers indentation
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