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(A) Typical scratch scars for AZ-100, AZ-95, and AZ-90 samples. The scratch direction and the onsets of the first (first damage mechanism or plunging) and second (second damage or substrate exposure) critical loads are indicated. Scale bar: 0.5 mm. (B) Adhesion of AZ-100, AZ-95, and AZ-90 coatings. (C) Scratch hardness of AZ-100, AZ-95, and AZ-90 compared to those of common polymers used in coatings.
