Figure 8 | Scientific Reports

Figure 8

From: Thermal Alternating Polymer Nanocomposite (TAPNC) Coating Designed to Prevent Aerodynamic Insect Fouling

Figure 8

Pencil scratch tests.

(a) Schematic representation of pencil scratch test along with the softness-hardness scale. (b) SEM image of the surface morphology of the TAPNC coating after 5B pencil harness test. (c) SEM image of the surface morphology of the TAPNC coating after 4B pencil harness test. (d) SEM image of the surface morphology of the TAPNC coating after 2B pencil harness test. Flattening of the surface features is clearly visible.

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