Caution: Do not try at home; use Health and Safety recommendations of your work institution!
Jet electropolishing (Electrolytic Jet Thinning) for Transmission Electron Microscope specimen preparation. The model 110 Jet Electropolisher from Fischione is designed to perform dislocation free thinning of materials for subsequent analysis in a Transmission Electron Microscope. This extremely versatile instrument can be used to thin materials and alloys electrolytically with corrosive electrolytes; or to thin non-metals and semiconductors such as gallium or arsenide, chemically, using nitric hydrofluoric or bromide-methanol solutions.
Part 2 of the movie : https://youtu.be/I3qzvhiPewU
Part 3 of the movie : https://youtu.be/ZBxr7Pz7QpA