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Ted Mooney, P.E. RET
Pine Beach, NJ

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Titanium Electropolishing

Hello everybody,

I'm a student currently doing some experiments on Titanium Anodizing, and I would like to try Titanium Electropolishing.

I have been searching and I had run into several patents. The most recent ones use mixtures of sulfuric acid, hidrofluoric acid and acetic or nitric acid. I would like to know which material is best to be used as a cathode for this kind of process. I found that Platinum is used, is there any other suitable material?

Thanks in advance,

Ana Da Camara
Student - South Korea
2005

Some compositions for electropolishing different materials can be seen at www.fischione.com. Often perchloric acid is used in polishing titanium. Here you should consider to apply tantalum as material, since quite aggressive. Danfoss have a tantalum coating. You can contact Danfoss.

Bo Gillesberg
- Nordborg, Denmark
2006

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