erosion rate

of a surface
https://doi.org/10.1351/goldbook.09249
Change in the position of the surface as a result of particle or photon irradiation divided by time of irradiation.
Notes:
  1. Erosion rate can be deduced from surface profilometer measurements of a crater after analysis. In this case, the effects of the altered layer and post-profile oxidation need to be considered.
  2. Where the erosion is caused by sputtering, initially the erosion rate can be less than the sputtering rate as a result of the retention of sputtering particles.
  3. The rate can be measured as a velocity.
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1803 (https://doi.org/10.1515/pac-2019-0404)