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Journal of Coatings Technology and Research

, Volume 3, Issue 4, pp 249–255 | Cite as

Some complementary scratch resistance characterization methods

  • Lan Mi
  • Hao Ling
  • Weidian Shen
  • Rose Ryntz
  • Beth Wichterman
  • Alex Scholten
Article

Abstract

In the characterization of mar/scratch resistance of coatings/materials with single-probe techniques, the probe usually scrapes the tested surface under a constant load or increasing load, followed by dimensional measurements of the scratch, identification of the critical force at which cracking/fracture occurs, or evaluation with optical instruments. Due to a variety of coatings/materials properties and various application requirements, the single-probe method may not provide pertinent characterization of coatings/materials in their applications in some cases. Three complementary test methods are presented in this article: i.e., a crack density measurement used for fragile thermoplastic olefin (TPO), a repeated scratching test, and a cross-scratching test used for glazing materials for automobile windows.

Keywords

Atomic force microscopy dynamic mechanical properties hardness scratch resistance surface analysis adhesion chip resistance mechanical properties physical properties automotive-OEM coatings-substrate interface plastics 

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Copyright information

© OCCA 2006

Authors and Affiliations

  • Lan Mi
    • 1
  • Hao Ling
    • 1
  • Weidian Shen
    • 1
  • Rose Ryntz
    • 2
  • Beth Wichterman
    • 2
  • Alex Scholten
    • 3
  1. 1.Surface Science and Nanotribology LaboratoryEastern Michigan UniversityYpsilanti
  2. 2.Visteon CorporationDearborn
  3. 3.Exatec GmbH & Co. KGBergisch GladbachGermany

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