Ted Mooney, P.E. RET
- Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Titanium conductive coating, dark grey, on titanium
Looking for a conductive coating to be deposited on titanium substrate. The coating itself is dark grey with the coating consisting mostly of titanium and 2%Al. Need corrosion resistance in addition to conductivity of the coating. Hardness is not an issue. It is not TiAlN coating. Preferably, it should be some conversion coating, since I also need to deposit the coating uniformly on the inside of the titanium tubing.
Lee Feldmaninstruments - Broomfield Colorado
1999
Anodizing in trisodium phosphate ⇦this on eBay or Amazon [affil links] at an appropriate voltage might be an option. The oxide color is determined by the voltage and the surface roughness of the part. It is a very hard coating but is thin. Since it is thin, ant the word conductive is very very relative, you might be able to get adequate contact with a nut/bolt or screw, possibly with a star washer. Non toxic and extremely rapid coating.
James Watts- Navarre, Florida
1999
1999
You could also try the conversion coating formula found in the ASM Metals Handbook Volume 5: Surface Engineering
-tom
Tom Pullizzi
Falls Township, Pennsylvania
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