Method

Microscratch

The CSM Micro Scratch Tester enables the precise determination of adhesive strength, scratch resistance and failure mechanisms of thin layers and coatings.

Equipment

Micro Scratch Tester / Anton Paar – CSM

Method

Scratch testing with a diamond Rockwell C indenter tip to measure adhesion and cohesion properties of coatings. The device applies an increasing linear load to the sample surface, identifying critical points of failure such as cracking or delamination.

Expected Result

Identification of critical loads at which cohesive and adhesive failures occur, providing insights into coating adhesion strength. This information is essential for optimizing coating processes and material performance in demanding applications.

Case Study

A ceramics manufacturer evaluates the adhesion strength of a new ceramic coating on a metal substrate. Using the Micro Scratch Tester, the critical loads for initial cracking and complete delamination are determined, helping to refine the coating process for better adhesion.

CSM Micro Scratch Tester / Anton Paar

Specifications

  • Sample size /thickness 1 – 100 / 0.1 – 100 mm, bulk and thin films, metals, alloys, polymers
  • Indenter: Rockwell C diamond tip, radius 100 µm
  • Force Range: 0.03 N to 30 N
  • Standards: EN ISO 20502:2016
  • Critical loads: LC1 (first cracking), LC2 (initial delamination), LC3 (complete delamination)

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