angle lapping

https://doi.org/10.1351/goldbook.09220
Sample preparation in which a sample is mechanically polished at an angle to the original surface.
Note: This angle can often be less than \(\pu{1\!^{\circ}}\), so that depth information with respect to the original surface is transformed to lateral information.
See also: radial sectioning
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1797 (https://doi.org/10.1515/pac-2019-0404)