Why smooth surface more prone to scratch ?

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Eli5: why same material with smooth surface will be more easily scratch compared to less smooth like glossy vs matte photo?

In: Physics

2 Answers

Anonymous 0 Comments

Smooth surfaces are not more prone to scratching then rough surfaces but it is much harder to spot a shallow scratch in a rough surface. You may think of a rough surface as something that have already been scratched as much as possible. Adding another scatch will usually not change the texture by much.

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