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Following the electrodeposition process, the anode was again painted with an n-butanol solution containing salts of iridium and tantalum. The ratio of iridium to tantalum in the solution being approximately 65% to 35% by weight. The solution was allowed to dry at ambient temperature for approximately 20 minutes, and the anode was subsequently heat treated in a furnace having an oxygen containing atmosphere at approximately 500° C. for approximately 20-30 minutes to form an iridium oxide/tantalum oxide composite coating. The process of painting and heat treating was repeated to obtain a third layer having a total loading of 10 g/m2. The anode was then heat treated for approximately one hour at approximately 500° C.

1. customto dry at ambient temperature for approximately 20 minutes
2. temperaturethe anode was subsequently heat
3. additiontreated in a furnace
4. customat approximately 500° C.
5. customfor approximately 20-30 minutes