- #1
kenny1999
- 235
- 4
When two surfaces of any kind rub against each other which happens everywhere every moment, do they lose atoms/particles from the surface theoretically ? Is it what we understand as "wear"?
However, looks like in our daily life, something doesn't seem to wear over time (even after many years) if we keep them in good condition, for example, we clean it, we wipe it, but for both "cleaning" and "wiping" we are practically rubbing against the surfaces, in which it should "wear" faster.
How about scratch? What is the difference from the microscopic point of view between wear and scratch? Are they the same but scratch could be understood as a greater extent of wear?? Or Aret they different??
I once studied Chemistry but have left school for many years.
However, looks like in our daily life, something doesn't seem to wear over time (even after many years) if we keep them in good condition, for example, we clean it, we wipe it, but for both "cleaning" and "wiping" we are practically rubbing against the surfaces, in which it should "wear" faster.
How about scratch? What is the difference from the microscopic point of view between wear and scratch? Are they the same but scratch could be understood as a greater extent of wear?? Or Aret they different??
I once studied Chemistry but have left school for many years.