Scratch Tester

Method

• Linear scratching of a indenter with an applied load to characterize the coating adhesion
• The diamond of the scratch test is the same as the diamond of a Rockwell indenter
• The scratch tester allows three ways to apply the load

Source:

Limitations

• Analyze the scratch on an external microscope
• Flat surface required
• Length of scratch: 0 – 30 mm
• Load range: 0 – 150 N (for hard coatings)