Using a 1 mm wire-tip anode, the authors show that aluminium produces longer-lived microdischarges and bubbles while titanium discharges are faster, and that KOH concentration controls whether titanium forms any PEO coating at all.
The first part investigates the current and voltage behaviour during the PEO process, followed by an analysis of bubble dynamics in relation to microdischarges
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Characterisation of single microdischarges during plasma electrolytic oxidation of aluminium and titanium
Using a 1 mm wire-tip anode, the authors show that aluminium produces longer-lived microdischarges and bubbles while titanium discharges are faster, and that KOH concentration controls whether titanium forms any PEO coating at all.