DISSERTATION
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Results and Discussion<br />
Figure 3.1. Optical microscope images of the electrode surface for a) a new electrode as<br />
received from a company, b) an electrode after polishing by hand with 3 µm, and c) 3 µm<br />
and 1 µm diamond polishing pastes.<br />
Figure 3.2. Optical microscope images of an electrode surface after cleaning with an<br />
automatic polishing machine following each cleaning step using: a) 3 µm, b) 1 µm, c) 0.5<br />
µm and finally d) 0.1 µm diamond polishing pastes.<br />
3.1 Importance of preparing the surface. Criteria for cleanliness 31